Category Archives: Stainless Steel Fasteners

UK Manufacturing Goes Viral: New era of a family legacy

As we look ahead to 2026, one thing is clear. Social media growth will be a major focus for our business. The past year has shown us the power of digital visibility and how quickly UK manufacturing can capture global attention. Never would we have imagined that our simple “bolt dipping” videos would go viral. Yet here we are, with millions of people discovering the craftsmanship behind our critical fasteners and the heritage of our family run company.

Blot dipping viral on Instagram
Viral Bolt Dipping on our Instagram page

UK Manufacturing Goes Viral

The response to our content has been extraordinary. Our videos have reached audiences far beyond the engineering sector, proving that UK manufacturing is not only relevant but genuinely fascinating to people worldwide. This surge in social media growth has put Hague Fasteners firmly on the map. As a result, viewers now see how critical fasteners are made and why precision matters.

Moreover, this visibility supports one of our biggest goals. We want to encourage young people to explore careers in UK manufacturing. By showing real processes, real people, and real engineering behind the scenes, we help to inspire the next generation. Our viral “bolt dipping” clips are more than just satisfying to watch. They open a window into a modern, high integrity family manufacturing business.

A Family Business With Deep Roots

Our story began in 1971, when John Stuart Hague founded Hague Fasteners in Wolverhampton. His vision was simple but ambitious. He set out to manufacture high quality, non standard fasteners in exotic materials. From day one, the focus was on small to medium batch specials made to drawing. That commitment still defines our work today and remains a key strength within UK manufacturing.

At the turn of the millennium, Hague Fasteners joined Richards & Allan (Nuts & Bolts) Ltd and European Breakdown Bolting (EBB Ltd), trading collectively as The Ralin Group. In 2010, we proudly returned to the original Hague Fasteners Limited name. This change reaffirmed our heritage, our independence, and our long standing reputation as a trusted supplier of critical fasteners.

Team photo- celebration 50 years in UK manufacturing
Team photo- Celebration of 50 years in UK Manufacturing

Expanding Capabilities and Strengthening Quality

Over the years, our capabilities have grown significantly. In 2017, we invested in a new manufacturing centre in Willenhall, a Black Country town known for its engineering heritage. This custom refitted facility doubled our capacity and reduced lead times. It also reinforced our commitment to producing critical fasteners with exceptional accuracy and reliability.

As a third generation family manufacturing business, we continue to build on this foundation. Our dedication to quality, service, and responsiveness has earned the trust of clients worldwide. Furthermore, our ongoing social media growth now allows us to share that journey with millions. People who may never have stepped inside a factory can now see the care that goes into every order.

A Message From Max Hague, Accounts Manager

“My brothers and I are so proud of how far the business has come, and we are excited to see exceptional results across our social platforms, especially Instagram and Facebook. Over 41 million people have seen one of our videos. That is the most viral one, and many others have passed 10 million views. I am extremely proud of our family business, and seeing more people outside the manufacturing industry engage with our work gives a real insight into UK manufacturing.”

His words reflect the pride and passion that drive our team every day. As our social media growth continues, we are committed to sharing more insights, more craftsmanship, and more of the engineering excellence behind our critical fasteners. In addition, our presence on Instagram and Facebook helps us connect with new audiences who might never have considered a future in UK manufacturing.

Looking Ahead to 2026

The future is bright. With strong momentum, a growing audience, and a renewed focus on digital engagement, we are ready to take UK manufacturing to even greater heights. Our investment in social media growth will continue to showcase the skill, precision, and dedication behind every order. It will also highlight why critical fasteners remain essential to industries around the world.

As we move forward, we will keep balancing tradition with innovation. Our family manufacturing business will stay rooted in quality and service, while our online presence opens new doors. Therefore, whether you discover us through a viral video or a long term partnership, you will see the same commitment to excellence in everything we do.

Work With Hague Fasteners

If you need bespoke critical fasteners or want to learn more about our capabilities, get in touch with Hague Fasteners. We are always ready to discuss urgent requirements, complex specifications, and long term supply partnerships.

Connect With Us on Social Media

Follow our journey as UK manufacturing continues to grow online. See more behind the scenes content, viral clips and engineering insights.

Proud Members of the British Stainless Steel Association

What It Means for Our Customers

Stainless steel plays a crucial role in modern engineering, and the organisations that support its development help shape the strength and future of our industry. Because of this, Hague Fasteners proudly maintain our membership with the British Stainless Steel Association (BSSA)- a leading body that champions the manufacture, use, and advancement of stainless steel across the UK and Ireland. Moreover, our renewed membership, now confirmed until December 2026, demonstrates our ongoing dedication to quality, collaboration, and continuous improvement within UK manufacturing and the wider stainless steel community. As a result, we remain closely connected to the standards, innovation, and expertise that continue to drive the industry forward.

A Strong Network Supporting the Stainless Steel Supply Chain

The BSSA brings together every part of the stainless steel supply chain, from raw material extraction through to production mills, processors, distributors, manufacturers, and recyclers. This broad community creates a powerful network of expertise and innovation, and it ensures stainless steel remains central to the UK and Irish economies. Moreover, the association provides members with technical support, training, education, and essential industry insights, helping companies like ours stay aligned with the highest standards in British stainless steel production and UK manufacturing excellence.

The Role of the BSSA in Today’s Industry

Based in Sheffield, the historic home of stainless steel, the BSSA acts as the voice of the sector. It offers marketing support, technical guidance, and access to vital industry information that strengthens the entire stainless steel community. As a result, membership goes far beyond a simple affiliation; it reflects a commitment to raising standards, improving best practice, and supporting the long term growth of stainless steel in today’s world. The BSSA Board reviews all applications quarterly and holds full authority over membership approvals, ensuring the association continues to represent the very best of British stainless steel expertise.

What Membership Means for Hague Fasteners

At Hague Fasteners, we take great pride in being part of this respected organisation. Our renewed membership reinforces our position as a trusted UK manufacturer and highlights our dedication to delivering high quality specialist fasteners to industries that rely on performance, reliability, and precision. It also strengthens our role within UK manufacturing, where stainless steel remains a cornerstone material for safety critical applications.

Our Expertise in Stainless Steel Fasteners

We specialise in manufacturing specialist fasteners, including special bolts, nuts, studs, and general fasteners in all stainless steel grades. Whether you need corrosion resistant components for offshore environments, high integrity fasteners for chemical processing, or bespoke items for extreme operating conditions, our team is ready to support your project. Stainless steel remains the material of choice across many sectors because of its superior corrosion resistance, durability, and long term performance — and we engineer every fastener to meet those expectations. This commitment ensures our customers receive the highest quality solutions within the British stainless steel supply chain.

How BSSA Membership Benefits Our Customers

Membership of the BSSA also gives our customers direct benefits. The association’s website includes a full directory of members, covering everything from mills and stockholders to processors and end users. This resource allows buyers, engineers, and procurement teams to explore the wider stainless steel supply chain, understand the capabilities of each company, and gain confidence in the quality and traceability of the materials they specify. Therefore, when you choose Hague Fasteners, you gain more than a manufacturer — you gain access to a wider network of trusted stainless steel experts who support the strength of UK manufacturing and the reliability of specialist fasteners.

Our Commitment to the Future

As we look ahead to the next phase of our membership, we remain committed to supporting the values of the BSSA: innovation, sustainability, collaboration, and continuous improvement. Stainless steel continues to play a vital role in modern engineering, and we are proud to contribute to its future through our work in British stainless steel, UK manufacturing, and the production of high integrity specialist fasteners.

Request a Quotation

If you require stainless steel nuts, bolts, studs, or any other specialist fasteners, please contact Hague Fasteners today for an immediate quotation. Our team will help you select the right materials and deliver fasteners engineered for performance in the most demanding environments.

Connect with Hague Fasteners

Best Materials For Specialist Nuts And Bolts: A Complete Buyer’s Guide

Choosing the right material for your specialist fasteners is just as important as choosing the right manufacturing partner. The material you select determines how your fasteners perform under pressure, heat, corrosion, and long‑term operational stress. Therefore, understanding the strengths of high performance alloys helps you make confident, specification‑driven decisions. Moreover, selecting the correct material early in the process ensures your components remain reliable throughout their service life. As a result, buyers who understand material behaviour can avoid costly failures and unnecessary downtime.

This guide therefore breaks down the most commonly used materials in precision fastener manufacturing and clearly explains what each one is best suited for. It also shows how different alloys behave in real‑world conditions, so you can make informed choices when selecting corrosion resistant nuts and bolts for demanding environments. Moreover, by understanding how each material performs under heat, pressure, and chemical exposure, you can match your specialist fasteners to the exact challenges of your project. As a result, you gain the confidence to specify the right material from the start and avoid costly issues later in the process.

Nickel Alloys

Nickel alloys offer exceptional corrosion and heat resistance, making them ideal for high temperature, high pressure environments such as petrochemical and offshore applications where corrosion resistant nuts and bolts are essential.

Inconel

Inconel delivers outstanding strength at extreme temperatures, so it is commonly used for fasteners in turbines, exhaust systems, and harsh thermal environments that require high performance alloys to maintain integrity.

Monel

Monel provides excellent resistance to seawater and acidic conditions, which makes it a strong choice for marine, subsea, and chemical processing applications where specialist fasteners must withstand aggressive environments.

Hastelloy

Hastelloy withstands aggressive chemicals and severe corrosion, therefore it is used in chemical plants, flue gas systems, and highly corrosive industrial environments that depend on corrosion resistant nuts and bolts for long term reliability.

Titanium

Titanium combines high strength with very low weight and superb corrosion resistance, making it suitable for aerospace, medical, and high performance engineering where specialist fasteners must deliver strength without added weight.

Duplex Stainless Steel

Duplex grades offer a balance of high strength and excellent corrosion resistance, so they are widely used in offshore, desalination, and structural applications that require high performance alloys for durability.

Stainless Steel

Stainless steel provides reliable corrosion resistance and durability, making it a versatile choice for general corrosion resistant nuts and bolts across manufacturing, construction, and engineering.

Why Material Selection Matters

Choosing the correct material is not just a technical decision. It affects safety, longevity, compliance, cost efficiency, and performance. Moreover, selecting the right material early helps avoid redesigns, delays, and unexpected costs, especially when specifying specialist fasteners for critical applications.

How Hague Fasteners Support Material Selection

As a specialist manufacturer of precision corrosion resistant nuts and bolts, Hague Fasteners work directly with buyers, engineers, and project teams to recommend the most suitable material for every application. Their team provides clear guidance on corrosion resistance, temperature performance, and certification requirements, and they ensure your fasteners use the correct high performance alloys for the environment they will operate in.

Material selection plays a crucial role when you specify specialist fasteners. When you understand the strengths of each alloy, from Inconel to Duplex Stainless Steel , you can choose corrosion resistant nuts and bolts that deliver the performance, safety, and reliability your project demands. Choosing the right high performance alloys also protects your assets, supports smooth operations, and strengthens long term results.

Speak to Hague Fasteners

If you need guidance on selecting the correct material for your specialist fasteners, contact Hague Fasteners today. Their team will review your specifications and recommend the most suitable alloy for your application.

Connect with Hague Fasteners

Need Custom Bolts Fast? How UK Manufacturers Meet Urgent Deadlines

In industries where precision and reliability are non-negotiable, waiting months for critical fasteners simply isn’t an option. Whether it’s a last-minute design change, an urgent repair, or a time-sensitive project delivery, the ability to source custom bolts quickly can make all the difference.

At Hague Fasteners, we’ve built our reputation on doing exactly that — delivering bespoke fasteners with speed, accuracy, and uncompromising quality. Here’s how UK manufacturers like us rise to the challenge when time is of the essence.

1. In-House Expertise Means No Delays

Unlike stockists or overseas suppliers, UK-based manufacturers with in-house machining capabilities can respond immediately. At Hague Fasteners, our skilled engineers and CNC operators work directly from OEM drawings or customer designs, ensuring fast interpretation and flawless execution.

2. Small Batch Flexibility

Need just 5 pieces? Or a prototype to test before full production? We specialise in small to medium batch quantities, from single items to several hundred. This agility allows us to support urgent requirements without compromising on quality or traceability.

3. Quality Without Compromise

Speed should never come at the expense of safety — especially in sectors like Nuclear, Defence, and Petrochemical. Hague Fasteners is trusted to deliver QC Level 1 Safety-Critical Fasteners, even under tight deadlines. Every item undergoes rigorous inspection and certification to meet the highest standards.

4. Real-Time Communication

Urgent projects demand clear, responsive communication. Our LIVE CHAT feature, Quick Enquiry Form, and direct phone support ensure you’re never left waiting. From quote to delivery, we keep you informed every step of the way.

🇬🇧 Why Choose a UK Manufacturer?

Partnering with a British manufacturer like Hague Fasteners means more than just speed — it means accountability, craftsmanship, and heritage. With over 50 years of experience, we understand the pressures our clients face and deliver solutions that meet both technical and commercial demands.

Ready to Get Started?

If you need custom bolts fast — and done right — we’re here to help. Explore our capabilities, browse our product range, or reach out directly. Let’s build something exceptional, together.

Contact Hague Fasteners

Special Fastener Manufacturer


Hague Fasteners are a Special Fastener Manufacturer, servicing all Global Industries with Bespoke Special Fasteners, Hague are manufacturing small quantities (1Pc, 5Pcs, 25Pcs, 100Pcs Through 500Pcs) of custom bolting and special fastener components to all International Standards and to Customers’ own designs and OEM Drawings, with the added peace of mind of Quality Assured British Manufacturing.

Special Fastener Manufacturer

Hague Fasteners have taken a firm stance to only utilise the very best materials making them a reliable Special Fastener Manufacturer for the highest integrity components, setting Customer Service, Quality & Integrity as our focus. it is for these reasons Hague Fasteners now enjoy great praise from their clients around the World.

  • Founded in 1971
  • Same Day Quotations
  • Delivery Status Updates
  • Test Certification Free Of Charge
  • Experienced Technical Assistance
  • Dedicated Customer Service Team
  • Massive Archive of OEM Drawings
  • Family Driven Ethics and Philosophy
  • Technical Library of International Standards
  • Global Daily Shipments Ensure Prompt Delivery

SPECIAL FASTENER MATERIALS

Carbon & Alloy SteelsStainless SteelsSuperAlloys
& Duplex Steels
Non Ferrous
8.8—10.9—12.9-14.9
A307 A, B & C
070M20 (EN3B)
070M55 (EN9)
080M40 (EN8)
605M36 (EN16)
708M40 (EN19)
817M40 (EN24)
826M40 (EN26
ASTM A193 B7
ASTM A193 B5
ASTM A193 B16
ASTM A320 L7
ASTM A320 L43
BS4882 B16A
Durehete 900 (T22)
Durehete 950 (T31)
Durehete 1055 (T42)
Jethete XM19
42CrMo4
24CrMo5
21CrMoV57
303 304
18-8/A2 316/A4
A2-50 A2-70
A2-80
A4-50 A4-70
A4-80
321 310 347
422 410 416
420 431
ASTM A193 B8
ASTM A193 B8M
ASTM A193 B8T
BS4882 B8X
BS4882 B8MX
BS4882 B8TX
B8/B8M/B8T Class 2
ASTM A193 B8C
BS4882B6
BS6105 C3
17-4PH
FV520B
Nitronic 50
Nitronic 60
904L
Uranus B6
Ferralium 255
Monel 400
Monel K500
Inconel 600
Inconel 601
Inconel 625
Inconel 718
Incoloy 800HT
Incoloy 825
Hastelloy B2
Hastelloy C4
Hastelloy C22
Hastelloy C276
UNS S31803
UNS S31254
UNS S32750
UNS S32755
UNS S32760
ASTM A453 660
254SMO
Sanicro 28
Nimonic 75
Nimonic 80A
Nimonic 90
Carpenter 20

Aluminium Bronze
Aluminium Silicon Bronze
Phosphor Bronze
Manganese Bronze
Brass
Naval Brass
Copper
Cupro Nickel 70/30
Cupro Nickel 90/10
Hiduron 191
Marinel
Aluminium
Plastic
Nylon
PTFE
PEEK
Delrin

Hague Fasteners – 45 Years In The Making

Hague Fasteners – 45 Years In The MakingIn the last 50 years British Industry has changed beyond recognition, however one name stands tall since 1971, Hague Fasteners.


It is over the last 5 decades that Hague Fasteners have evolved, through booms and crashes in an ever changing industry, to become experts in Customer Focused Precision Manufacturing Of Special Fasteners.

It is this wealth of experience and stability that sets Hague Fasteners apart.

Hague Fasteners have adapted, evolved and continually improved over the last 45 years, diversifying from its oil and gas focussed beginnings spreading its expertise into every conceivable industry around the world.

Hague Fasteners continues to make all their fasteners in the heart of the UK and are more competitive now than at any time in their history.

Hague Fasteners continue to break growth records as they near their 2014/2015 year end. Export Sales are at an all time high and growth within the home market continues to boom due to the incredible word of mouth recommendations within all industries.

Hague Fasteners will always put their Customers first and it is this focus to stand out in a declining service industry that sets them apart.

For exceptional service, you need reliability

www.HagueFasteners.co.uk

Time For Change 

Unrivalled experience in manufacturing Fasteners to Clients designs. Total Customer Focus & Ethics make Hague Fasteners Limited, Special Bolting UK stand out from the crowd.
Hague will give you a refreshing change.
Small Enough To Care : Big Enough To Deliver (since 1971)

Stainless Steel Fasteners

Hague Fasteners are the original experts in Special Stainless Steel Fasteners.

For over four decades Hague Fasteners have manufactured custom stainless steel fasteners in every conceivable grade of stainless steel to all international standards.

Special Stainless Steel Fasteners

Often there can be confusion between all the different international steel designations so to help unify the world of Stainless Steel Fasteners, here is a handy comparison of stainless steel grades for your convenience.

USA France Germany Germany Italy Japan Russia Spain Sweden UK European Union
AISI AFNOR DIN 17006 W.N. 17007 UNI JIS GOST UNE SIS BSI EURONORM
201 1)         SUS 201          
301 1) Z 12 CN 17-07 X 12 CrNi 17 7 1.4310 X 12 CrNi 1707 SUS 301   X 12 CrNi 17-07 23 31 301S21 X 12 CrNi 17 7
302 1) Z 10 CN 18-09 X 5 CrNi 18 7 1.4319 X 10 CrNi 1809 SUS 302 12KH18N9 X 10 CrNi 18-09 23 31 302S25 X 10 CrNi 18 9
303 1) Z 10 CNF 18-09 X 10 CrNiS 18 9 1.4305 X 10 CrNiS 1809 SUS 303   X 10 CrNiS 18-09 23 46 303S21 X 10 CrNiS 18 9
303 Se 1) Z 10 CNF 18-09     X 10 CrNiS 1809 SUS 303 Se 12KH18N10E X 10 CrNiS 18-09   303S41  
304 1) Z 6 CN 18-09 X 5 CrNi 18 10 X 5 CrNi 18 12 1.4301 1.4303 X 5 CrNi 1810 SUS 304 08KH18N10 06KH18N11 X 6 CrNi 19-10 23 32 304S15 304S16 X 6 CrNi 18 10
304 N 1)       X 5 CrNiN 1810 SUS 304N1          
304 H 1)       X 8 CrNi 1910 SUS F 304H   X 6 CrNi 19-10      
304 L 1) Z 2 CN 18-10 X 2 CrNi 18 11 1.4306 X 2 CrNi 1911 SUS 304L 03KH18N11 X 2 CrNi 19-10 23 52 304S11 X 3 CrNi 18 10
  Z 2 CN 18-10-Az X 2 CrNiN 18 10 1.4311 X 2 CrNiN 1811 SUS 304LN     23 71    
305 1) Z 8 CN 18-12     X 8 CrNi 1812 SUS 305   X 8 CrNi 18-12 23 33 305S19 X 8 CrNi 18 12
  Z 6 CNU 18-10       SUS XM7         X 6 CrNiCu 18 10 4 Kd
309 1) Z 15 CN 24-13 X 15 CrNiS 20 12 1.4828 X 16 CrNi 2314 SUH 309       309S24 X 15 CrNi 23 13
309 S 1)       X 6 CrNi 2314 SUS 309S 20KH23N18       X 6 CrNi 22 13
310 1)   X 12 CrNi 25 21 1.4845 X 22 CrNi 2520 SUH 310 10KH23N18     310S24  
310 S 1) Z 12 CN 25-20 X 12 CrNi 25 20 1.4842 X 5 CrNi 2520 SUS 310S 20KH25N20S2   23 61   X 6 CrNi 25 20
314 1) Z 12 CNS 25-20 X 15 CrNiSi 25 20 1.4841 X 16 CrNiSi 2520           X 15 CrNiSi 25 20
316 1) Z 6 CND 17-11 X 5 CrNiMo 17 12 2 1.4401 X 5 CrNiMo 1712 SUS 316   X 6 CrNiMo 17-12-03 23 47 316S31 X 6 CrNiMo 17 12 2
316 1) Z 6 CND 17-12 X 5 CrNiMo 17 13 3 1.4436 X 5 CrNiMo 1713 SUS 316   X 6 CrNiMo 17-12-03 23 43 316S33 X 6 CrNiMo 17 13 3
316 F 1)   X 12 CrNiMoS 18 11 1.4427              
316 N 1)         SUS 316N          
316 H 1)       X 8 CrNiMo 1712 SUS F 316H   X 5 CrNiMo 17-12      
316 H 1)       X 8 CrNiMo 1713   03KH17N14M2 X 6 CrNiMo 17-12-03      
316 L 1) Z 2 CND 17-12 X 2 CrNiMo 17 13 2 1.4404 X 2 CrNiMo 1712 SUS 316L   X 2 CrNiMo 17-12-03 23 48 316S11 X 3 CrNiMo 17 12 2
  Z 2 CND 17-12-Az X 2 CrNiMoN 17 12 2 1.4406 X 2 CrNiMoN 1712 SUS 316LN 03KH16N15M3        
316 L 1) Z 2 CND 17-13 X 2 CrNiMo 18 14 3 1.4435 X 2 CrNiMo 1713     X 2 CrNiMo 17-12-03 23 53 316S13 X 3 CrNiMo 17 13 3
  Z 2 CND 17-13-Az X 2 CrNiMoN 17 13 3 1.4429 X 2 CrNiMoN 1713   08KH17N13M2T 10KH17N13M2T   23 75    
  Z6 CNDT 17-12 X 6 CrNiMoTi 17 12 2 1.4571 X 6 CrNiMoTi 1712   08KH17N13M2T 10KH17N13M2T X 6 CrNiMoTi 17-12-03 23 50 320S31 X 6 CrNiMoTi 17 12 2
    X 10 CrNiMoTi 18 12 1.4573 X 6 CrNiMoTi 1713   08KH16N13M2B X 6 CrNiMoTi 17-12-03   320S33 X 6 CrNiMoTI 17 13 3
  Z 6 CNDNb 17-12 X 6 CrNiMoNb 17 12 2 1.4580 X 6 CrNiMoNb 1712   09KH16N15M3B       X 6 CrNiMoNb 17 12 2
    X 10 CrNiMoNb 18 12 1.4583 X 6 CrNiMoNb 1713           X 6 CrNiMoNb 17 13 3
317 1)       X 5 CrNiMo 1815 SUS 317     23 66 317S16  
317 L 1) Z 2 CND 19-15 X 2 CrNiMo 18 16 4 1.4438 X 2 CrNiMo 1815 SUS 317L     23 67 317S12 X 3 CrNiMo 18 16 4
317 L 1) Z 2 CND 19-15 X 2 CrNiMo 18 16 4 1.4438 X 2 CrNiMo 1816 SUS 317L     23 67 317S12 X 3 CrNiMo 18 16 4
330 1) Z 12NCS 35-16 X 12 NiCrSi 36 16 1.4864   SUH 330 08KH18N10T        
321 1) Z 6 CNT 18-10 X 6 CrNiTi 18 10 X 12 CrNiTi 18 9 1.4541 1.4878 X 6 CrNiTi 1811 SUS 321 12KH18N10T X 6 CrNiTi 18-11 23 37 321S31 X 6 CrNiTi 18 10
321 H 1)       X 8 CrNiTi 1811 SUS 321H   X 7 CrNiTi 18-11   321S20  
329 1)   X 8 CrNiMo 27 5 1.4460   SUS 329J1 08KH18N12B   23 24    
347 1) Z 6 CNNb 18-10 X 6 CrNiNb 18 10 1.4550 X 6 CrNiNb 1811 SUS 347   X 6 CrNiNb 18-11 23 38 347S31 X 6 CrNiNb 18 10
347 H 1)       X 8 CrNiNb 1811 SUS F 347H   X 7 CrNiNb 18-11      
904L 1) Z 12 CNDV 12-02   1.4939              
    X 20 CrNiSi 25 4 1.4821              
UNS31803 2)   X 2 CrNiMoN 22 5 1.4462              
UNS32760 2) Z 3 CND 25-06Az X 3 CrNiMoN 25 7 1.4501     12Kh13        
403 3) Z 12 C 13 X 6 Cr 13 X 10 Cr 13 X 15 Cr 13 1.4000 1.4006 1.4024 X 12 Cr 13 SUS 403   X 6 Cr 13 23 02 403S17 X 10 Cr 13 X 12 Cr 13
405 3) Z 6 CA 13 X 6 CrAl 13 1.4002 X 6 CrAl 13 SUS 405   X 6 CrAl 13   405S17 X 6 CrAl 13
  Z 8 CA 7 X 10 CrAl 7 1.4713     10Kh13SYu       X 10 CrAl 7
    X 10 CrAl 13 1.4724 X 10 CrAl 12   15Kh18SYu        
    X 10 CrAl 18 1.4742             X 10 CrSiAl 18
409 3) Z 6 CT 12 X 6 CrTi 12 1.4512 X 6 CrTi 12 SUH 409       409S19 X 5 CrTi 12
        X 2 CrTi 12   12Kh13        
410 3) Z 10 C 13 Z 12 C 13 X 6 Cr 13 X 10 Cr 13 X 15 Cr 13 1.4000 1.4006 1.4024 X 12 Cr 13 SUS 410 08Kh13 X 12 Cr 13 23 02 410S21 X 12 Cr 13
410 S 3) Z 6 C 13 X 6 Cr 13 1.4000 X 6 Cr 13 SUS 410S     23 01 403S17 X 6 Cr 13
414 3)                    

1) Austenitic grades

2) Ferritic austenitic grades, Duplex and Super Duplex

3) Ferritic grades

Non Magnetic B8LN Stainless Steel Fasteners

20140502-234857.jpg

The ultimate non-magnetic stainless steel fasteners are manufactured in extremely small quantities by Hague Fasteners.

The high Nitrogen content of ASTM A193 B8LN fasteners (304LN fasteners) creates an extremely low level of magnetic permeability and these special fasteners are used when is used where an extremely low level of magnetic permeability is required.

Special Fasteners in this specific stainless steel further exhibit the following desirable properties:-

Moderate pitting and crevice corrosion resistance
Excellent impact toughness at sub-zero temperatures
A higher proof stress yield than regular 304L stainless steel fasteners.
Non-magnetic, Very low ferrite level and very resistant to martensitic transformation. Relative magnetic permeability < 1.005 Good weldability. 304LN was originally developed as a higher strength version of 304L by raising the amount of nitrogen. However, the increase in strength is only modest and easily achieved through cold working. Further, duplex grades are now commonly used where higher strength bolting is required. The grade is now used in specialised applications where a very low magnetic response is needed. In standard 304L, a typical level of relative magnetic permeability is around 1.05-1.1 due to small amounts of ferrite in the austenitic structure. A completely non-magnetic material would have a value of 1.0. 304LN can achieve a maximum value of around 1.005, which is the lowest practical level of any steel grade. It is also very resistant to transformation to the magnetic martensitic phase which can occur on forming or cooling to very low temperatures. For this reason Hague's manufactured B8LN Special Fasteners are commonly used in specialised equipment where magnetic “interference” needs to be avoided and also for use in cryogenic equipment such as bolting for Magnetic resonance imaging (MRI) scanners, reinforcing foundation bolts for structures surrounding MRI scanners also special fasteners in pressure vessels, and non standard socket screws in cryogenic applications.

17/4PH Fasteners

Grade 17/4 PH (1.4542) is one of the most common precipitation hardening stainless grades used for the manufacture of our Special Fasteners and our Non-Standard Socket Screws.

20140323-165442.jpg

17-4PH has good corrosion resistance whilst also offering high strength and good impact toughness, vital properties in many special bolting applications.

17/4PH is often specified where the following characteristics are required:

• Good corrosion resistance (slightly less than a 304 stainless steel)
• High hardness and high strength
• Controlled balance of mechanical properties by ageing (precipitation hardening)
• Improved toughness compared to 431 stainless and critically at sub-zero temperatures in the softer conditions
• Magnetic
• Thermal expansion comparable to carbon steel
• Easier to weld than martensitic stainless grades like 420 and 431

17-4 PH develops its high strength from the precipitation of copper particles in its martensitic matrix. It comes in various conditions denoted by H plus the ageing temperature in Fahrenheit (°F), for example H900, H1025 etc.

The higher the ageing temperature, the lower the strength becomes and the higher the ductility and toughness develop. The minimum 0.2% Proof Stress values can vary from 520 MPa to 1170 MPa depending on the condition.

CONDITION A
Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation.

CONDITION H950
Treat Condition A material at 900 F(482 C) for 1 hour, air cool.

CONDITION H925, H1025, H1075, H1100, H1150
Soak solution treated material for 4 hours at specified temperature, air cool.

CONDITION H1150M
Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.

The combination of high strength and good corrosion resistance finds special fasteners used in:
Drive shafts, gears, hydraulic rams, valve stems, load cells, tensioning systems, quick release pins, fasteners, aerospace, medical devices, food processing, conveying equipment and fall arrest systems

Alternative Designations
AISI 630 AMS 5604 AMS 5622 AMS 5643 ASTM A564 (630) ASTM A693 (630) ASTM A705 (630) MIL C-24111 MIL P-47183 MIL S-81591 UNS S17400 Carpenter Custom 630 17-4 AL 17-4 Marinox 1 CSM 21 MAXX 17-4 17/4PH

17-4 PH is the quality choice of high strength, corrosion resistant steel fasteners.