Category Archives: Special Fasteners

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

Nickel Alloy Special Fasteners

Nickel Based Alloy Fasteners are used in a wide range of Global Industries.

Hague Fasteners have been a major manufacturer of the more specialist bolting components used for Subsea Engineering & Oil & Gas sectors, particularly the production and supply of small batch quantities of special fasteners to Customers Drawings.

Nickel Alloy Fasteners

The wide range of superalloys Hague Fasteners manufacture include:-

Alloy 600 – Inconel 600 – BS 3076 NA14 – Wekstoff 2.4816 – ASTM B166 – UNS N06600
Alloy 601 – Inconel 601 – Werkstoff 2.4627 – ASTM B166 – UNS N06601
Alloy 625 – Inconel 625 – BS 3076 NA21 – Werkstoff 2.4856 -ASTM B446 – UNS N06625
Alloy 718 – Inconel 718 –  Werkstoff 1.4668 – ASTM B637 – UNS N07718
Alloy 750 – Inconel 750 –  Werkstoff 2.4669 – ASTM B637 – UNS N07750
Alloy 400 – Monel 400 – BS 3076 NA13 – Werkstoff 2.4360 – ASTM F467  – UNS N04400
Alloy K500 – Monel K500 – BS 3076 NA18 – Werkstoff 2.4375 – ASTM B865-04  – UNS N05500
Alloy C276 – Hastelloy C276 – Werkstoff 2.4819  – ASTM B574  – UNS N10276
Alloy 22 – Hastelloy C22 – Werkstoff 2.4602  – ASTM B574  – UNS N06022
Alloy B2 – Hastelloy B2 – ASTM B335  – UNS N10665
Alloy X – Hastelloy X – Werkstoff 2.4655 – ASTM B572  – UNS N06002
Alloy B3 – Hastelloy B3 – ASTM 2.4600 – ASTM B335 – UNS N10675
Alloy G30 – Hastelloy G30 – Werkstoff 2.4603 – ASTM B581  – UNSN06030
Alloy 50 – Nitronic 50 – ASTM A479 XM19 – UNS S20910
Alloy 60 – Nitronic 60 – ASTM A193 B8S – UNS S21800
Alloy 75 Nimonic 75 – Werkstoff 2.4951 – ASTM B637 – UNS N06075
Alloy 80A – Nimonic 80A – BS 4882 NA20 – Werkstoff 2.4952 – ASTM B637  – UNS N07080
Alloy 90 – Nimonic 90 – ASTM B408  – UNS N07090
Alloy 800 – Incoloy 800 – BS 3076 NA15 – Werkstoff 1.4876 – ASTM B408  – UNS N08800
Alloy 800H – Incoloy 800H – ASTM B408
Alloy 800 HT – Incoloy 800HT – Werkstoff 1.4959 – ASTM B408 – UNS N08811
Alloy 825 – Incoloy 825 – BS 3076 NA16 – Werkstoff 2.4858 – ASTM B425 – UNS N08825
Alloy 925 – Incoloy 925 – ASTM B805  – UNS N09925
Alloy DS – Incoloy DS – BS 3076 NA17 – Werkstoff 1.4862 – UNS N08330

British Special Fasteners

The call for quality British Manufactured Special Fasteners is ever increasing as Critical industry shy away form imported and inferior manufactured bolting to drawings.

Hague have enjoyed a record breaking year as industry returns to it’s roots following an industry realisation over the last decade that cheap imports are not a solution where high quality, timely deliveries and assured customer service is a necessity.

Hague have a long standing family tradition of putting Customers needs first and are proud to always go the extra mile to ensure every client gets the very best attention regardless of the scale of their needs.

Special Fastener Machinery
Special Fastener Machinery

Hague Fasteners continued growth necessitates continued investment in additional plant and machinery and this week we have taken delivery of another Bar Fed 4 Axis Twin Turret CNC Lathe to ensure even greater throughput and thus ensuring we can keep up with an ever growing demand for our high integrity British Manufactured Special Bolting whilst ensuring timely deliveries whilst striving for 100% Customer satisfaction.

Continued Sector Growth in Special Fasteners

Following record breaking output in the last Financial Year, Hague Fasteners have once again made significant investment in adding to their ever growing plant list enabling further diversity and improving lead times for Special Fastener deliveries.

Hague are due to take delivery of a Bar Fed 4 Axis Twin Turret CNC Lathe to ensure even greater throughout and thus enabling them to keep up with an ever growing demand for their high integrity British Manufactured Special Bolting.

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CEO Jon Hague said “the continued word of mouth recommendations from existing clients remains the largest generator of new business. Our insistence on maintaining the highest standards and taking pride in the product and technical expertise offered has seen the Company blossom through otherwise difficult times for engineering”.

Proprietor Claire Hague added “continued year on year growth has been enjoyed since our relocation and reinvention in 2008, distancing ourselves from the glut of foreign imports and standing proud as quality British Manufacturers has been the making of us.”

It is this British manufacturing message that has seen Hague secure major projects in the last 12 months for Construction, Subsea, Oil & Gas and Power Generation sectors and once a a client has a taste of The Hague service they seldom look elsewhere.

Hague Fasteners – They won’t cut corners to win orders. Quality British Manufacturing since 1971.

Urgent Breakdown Bolting

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It is no idle claim that Hague Fasteners are poised to service your special fastener demands 24 hours a day, 7 days a week, 365 days a year.
Hague Fasteners were established in 1971 with the sole aim of servicing the flourishing oil & gas sector. Hague’s “what you want, when you want it” ethos saw an immediate solution to troublesome plant breakdown and unexpected pipeline issues.

Over the following four plus decades Hague have ensured they are always at hand to resolve any plant breakdowns or urgent supply demands for special fasteners or custom fasteners, manufactured fast and supplied efficiently as if from stock. The urgent breakdown service provided by Hague Fasteners effectively means every special fastener is available from stock.

When there simply has to be a supply of special fasteners, Hague are the solution.

Hague Fasteners Technical Sales Team are available:-

24 Hours a Day
7 Days a Week
365 Days a Year

No matter where you are in the World you can always get a response from Hague Fasteners.

Outside of normal operating hours just call our normal phone number and select “Option 2” to speak to a member of Staff.

Our Sales email address is read 24 hours a day, simply drop an email over for immediate attention.

Our Web “Live Chat” is manned 24 hours a day, just open up our website and select “Live Chat” at the bottom of our pages.

It has never been easier to get a response to your emergency bolting needs.

Hague Fasteners – The Emergency Breakdown Bolting Solution

Bolt Heads Marked HF

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Special Fasteners installed around the World are seen in every conceivable use with the letters “HF” marked clearly on the heads.

Although Hague Fasteners only manufacture small quantities of very specialist fasteners, a tremendous fastener history since 1971 means Millions of custom fasteners have been manufactured I the heart of England and shipped to countries in all four corners of the World with the heads marked with The Hague Fasteners Ident HF.

These 2 letters, H and F are a symbol of quality British fastener manufacturing excellence and give piece of mind to engineers and fitters in every industry.

Hague Fasteners are often the preferred source for Superalloy and all bolting materials manufactured bolting for many Fastener Stockists and Distributors and OEM end users often ask themselves why bolts and fasteners are a hard stamped with the letters HF and numbers.

Bolt heads and fasteners in general are typically marked with the manufacturers identification and the material grade, so wherever there is a bolt marked HF you can rest assured it is a quality assured piece of British Engineering made in the UK by Hague Fasteners.

Special Fastener Coatings

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Hague Fasteners are experts in small batch Special Fastener manufacturing.

Often the manufacturing requirement originates from the OEM, the original equipment manufacturer where the bolt design, material specification and electroplating specification is governed by a Company specific documented specification. These specifications are often requested even when the special fastener in question is being manufactured for an intermediary, a fastener distributor, or the OEM’s subcontractor.

Hague Fasteners can supply manufacture non standard fasteners, non standard socket screws and Special fasteners with any surface coating.

This article features a sample of the OEM electroplatings and Hard Chrome Coatings often called for on Hague’s Special Fasteners:-

Electroless Nickel Plated Fasteners Specifications
• AMS 2404E
• AMS 2404B
• ASTM B 733-97
• Mil-C-26074E
• C-118 ABB Seatco, Inc.
• VGS 6.2.7 ABB Vetco Gray
• KC-118 ABB Offshore Systems, Inc.
• CS-0515 Daniel Valve
• 05-9070-025 Anderson Greenwood
• BCS A201 Baker Hughes
• MPM 300 Baker Hughes
• ESC 46 Bettis Corp.
• ESC 6 Bettis Corp.
• 200-214 Bowen Tool
• 350-001 Bowen Tool
• CSP-124 Camco
• WI-MFG Crane Valve
• MPS-2 Quarter Turn Products
• X-4021 Cameron Iron Works, Inc.
• X-4526 Cameron Iron Works, Inc.
• X-027059 Cameron
• 37-0027 W K M Valve
• 37-0026 W K M Valve
• 020 Dril-Quip, Inc.
• P-00401 C Daniel Flow Products
• P-00407 B Daniel Flow Products
• P-00413 B Daniel Flow Products
• CS-0507 Daniel Industries
• 500 A1 Dresser Valve Division
• 500 A3 Dresser Valve Division
• 500 E1 Dresser Valve Division
• 500 D1 Dreeser Valve Division
• CFPS-146 Control Flow, Inc.
• C80100 FMC Energy Systems
• C80103 FMC Energy Systems
• FGS 8B7 Fisher Controls
• FGS 8B10 Fisher Controls
• H-250-2002 Welex Engineering
• GCS-521 Gray Tool Company
• MS000.00 TK Valve
• WP-2 Grove Valve
• WP-3 Grove Valve
• WP-13 Grove Valve
• WP-030 Grove Valve
• GF-71 Grove Valve “Italy”
• GF-73 Grove Valve “Italy”
• ES-C-146 Halliburton
• 70.83673 Halliburton
• PS 108 Houston Engineers “Smith International”
• Hemps 4.003 Hydril
• Hemps 4.010 Hydril
• C-198 Kvaerner Oilfield
• EAVMS8E.VMS Keystone Valve
• 250-006 Keystone Valve
• CS-3005 National Oilwell
• S-95-0531-A Oceanering
• ES-530 Stewart & Stevenson
• ES-517 Stewart & Stevenson
• ES-518 Stewart & Stevenson
• ES-519 Stewart & Stevenson
• ES40290 Schlumberger
• T6001597 Schlumberger
• 681424-AB Schlumberger
• CSP-124A Schlumberger
• A-X040018 Shafer Engineering
• ES-504 Quality Oilfield Products
• ES-507 Quality Oilfield Products
• VG-05 Valgro
• B018 Weel Dynamics
• WC-211 Weatherford

Electroless Nickel Plated Fasteners with PTFE Coating
• WC-213 Weatherford
• Hemps 4.010 Hydril

Industrial Hard Chrome Plated Fasteners
• QQ-C-320B
• QQ-C-320C
• ASTM B 177-01
• VGS 6.2.9 ABB Vetco Gray
• N05-9070-006 Anderson Greenwood
• BCS A202 Baker Hughes
• ES 5058 Cooper Energy Services
• 37-7536 Cooper Cameron Valves
• X-004020 Cameron
• CS-0514 Daniel Valve Company
• P-00402 D Daniel Flow Products
• P-00403 B Daniel Flow Products
• P-00409 B Daniel Flow Products
• P-00411 B Daniel Flow Products
• X-136107-01 Cooper Oil Tool
• FFS 2E1 Fisher Controls
• SPP-659 Flowserve
• PS 101 Houston Engineers “Smith International”
• Hemps 4.002 Hydril
• C-198 Kvaerner Oilfield
• CS-110 Wood Group

Passivation of Fasteners
• QQ-P-35C

Chromium Over Sulfate or Electroless Nickel Coated Fasteners Specifications
• 200-312 Bowen Tool

Sulfamate Nickel Coated Fasteners
• X-027052 Cameron
• BCS A601 Baker Hughes
• VGS 6.2.8 ABB Vetco Gray
• PS 120 Houston Engineers “Smith International”

Zinc Electroplating Special Fastener Specifications
• ASTM B633
• 328K B Briggs Stratton
• MS201 Case
• MAT0310 Case New Holland
• 1E1675 Caterpillar
• 1E0397B, E, G Caterpillar
• JDS 117 John Deere
• 40004-017-01 Square D
• TSH6500G & TSH6524G Toyota
• WM 3101 Whirlpool

Non Magnetic B8LN Stainless Steel Fasteners

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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.

Special Fastener Exhibition Visitor Boost

Hague Fasteners noticed a 28% increase in Website traffic yesterday following a busy day exhibiting at the European Offshore & Energy Exhibition.
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Visitors to the NEC Exhibition were thrilled to meet Boltman and clamoured to have their picture taken with The Hague Fasteners mascot at the show as he launched the Free Hague Calc Fastener iPhone App, The Screw Thread Calculator, which was demonstrated on the Hague Fasteners Stand alongside their Special Fasteners Showcase.

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The surge in visitors is good news indeed for British Manufacturing and Hague Fasteners are looking forward to further success at the Show on Wednesday and Thursday.

European Offshore & Energy 2014

Hague Fasteners are all setup and ready for 3 days of Exhibiting at the European Offshore & Energy Exhibition 2014 at the NEC Birmingham.
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The stand E262 was expertly set up in anticipation of an extremely busy 3 day event meeting existing customers and introducing our Special Fastener expertise to new contacts visiting from around the world.
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Please be sure to pop along and meet us between the 8th and 10th April where our team are on hand to introduce themselves and detail our services to you face to face.