Category Archives: Stainless Steel Fasteners

Bolt & Nut Manufacturing, Bolt and Nut Manufacturing, Fastener Manufacturers, Special Fastener, Special Fasteners, Stainless Steel Fasteners, Uncategorized

Special Fastener Manufacturer

Jon Hague

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.

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 Steels	Stainless Steels	SuperAlloys & 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

Non Standard Fasteners, Precision Engineering, Special Fasteners, Special Fasteners History, Stainless Steel Fasteners, SuperDuplex Fasteners, UK Manufacturing

Hague Fasteners – 45 Years In The Making

Jon Hague

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

British Manufacturing, Construction Fasteners, Custom Fasteners, Customer Satisfaction, Engineering, Fastener Manufacturers, fastener manufacturing, Fasteners, Hague Fasteners, Non Standard Fasteners, non-standard fasteners, Non-standard socket screws, NonStandard Socket Screws, Precision Engineering, Precision Engineers, Socket cap screws, Socket capscrews, Socket Set Screws, socket setscrews, Special Fastener, Special Fasteners, Stainless Steel Fasteners

Time For Change

Jon Hague

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)

Special Fasteners, Stainless Steel Fasteners

Stainless Steel Fasteners

Jon Hague

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.

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

ASTM A193, Non Standard Fasteners, NonStandard Socket Screws, Special Fasteners, Stainless Steel Fasteners

Non Magnetic B8LN Stainless Steel Fasteners

Jon Hague

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, 17/4PH Fasteners, Special Fasteners, Stainless Steel Fasteners

17/4PH Fasteners

Jon Hague

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.

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.

Fastener Manufacturers, Power Generation, Special Fasteners, Stainless Steel Fasteners

B50A125E Bolts

Jon Hague

B50A125E is a popular Creep resistant steel which is hardened and tempered to give critical reliability in high temperature applications with a usual upper continuous operating temperature limit of 580 degrees C.

Hague Fasteners manufacture 422 stainless steel bolts and general special fastener products that are designed to be used at elevated high-temperatures whilst maintaining their high strength.

Hague’s special fasteners in B50A125E (422 Stainless Steel) are made to order and used commonly in thermal engines and power plants.

B50A125E (Alloy 422) is a hardenable stainless steel designed for use at temperatures of up to 1200ºF (649ºC). Alloy 422 has good resistance to scaling and oxidation.

Through heat treatment, high mechanical properties can be obtained.

Hague’s Alloy 422 Bolting is used in applications such as compressors or steam turbines and also in aircraft parts, valves, & other high temperature applications.

B50A125E Fastener Applications: Jet engine parts, high temperature bolting, compressor fasteners, steam turbine bolting, blades fasteners, aircraft components, engines bolts.

Specifications
B50A125E
422 Stainless
UNS S42200
B50A
AISI 616
AMS 5655
ASTM A 565 GRD 616
DOD F 24669/7
MIL S 861
B50A125
B50A951A1
BS 970 442S19
EN61

Special Fasteners, Stainless Steel Fasteners

ASTM A453 660 Fasteners

Jon Hague

ASTM A453 660 Fasteners

A286 is a precipitation hardening, austenitic stainless steel designed for use at temperatures up to 1300°F (704°C), where high tensile strength, excellent creep strength and good corrosion resistance are required.

Hague Fasteners are experts in the manufacture of all types of A286 fasteners, from A286 Hex Nuts, A286 Hex Bolts & A286 Studbolts through to complete special fasteners made to Drawings.

Hague Fasteners manufactured Special Fasteners in specification ASTM A453 660 are used in all types of applications including jet engines, gas turbines, and super-charger components.

A286 is also used extensively in the oil and gas industry, and in high-strength non-magnetic and cryogenic applications. It is austenitic at all temperatures.

HEAT TREATMENT
Two heat treatments are commonly used for this alloy.

For high stress rupture strength:
Solution treat at 1800°F (982°C) for 1 hr, rapid cool, age at 1325°F (718°C) for 16 hrs, air cool. (e.g., ASTM A638 Grade 660 Type 2; ASTM A453 Grade 660 Class B; ASTM A891 Type 2; AMS 5732)

For high room temperature tensile strength and stress rupture ductility:
Solution treat at 1650°F (899°C) for 2 hr, rapid cool, age at 1325°F (718°C) for 16 hrs, air cool. (e.g., ASTM A638 Grade 660 Type 1; ASTM A453 Grade 660 Class A, ASTM A891 Type 1; AMS 5737)

Alternative Incoloy Alloy A286 (Grade 660) materials specifications available:-
Alloy A286 AMS 5731 AMS 5732 AMS 5734 AMS 5737 AMS 5726
AMS 5853 AMS 5895 EN 2399 SPS M-118
NACE MR-0175 Fairchild MS 301, 314 Elliott Turbine MS 618 Weatherford WS-881
Cameron MS-003030
ASTM A891 (Type 1, 2)
ASTM A638 (Grade 660 Type 1, 2)
ASTM A453 (Grade 660 Class A, B, C, D)

Stainless Steel Fasteners, UK Manufacturing

BS EN ISO 3506 Special Stainless Threaded Fasteners

Jon Hague

Stainless Steel Fasteners to BS EN ISO 3506 Grades A1, A2 (A3) & A4 (A5)

General grades of Stainless steel fasteners are specified in BS EN ISO 3506

Part 1 covers bolts, screws & studs
Part 2 covers nuts

These specifications replace BS6105, which is withdrawn as a British Standard.

Chemical Compositions
The chemical compositions of austenitic stainless steel fasteners with the designations A1, A2 & A4 are shown in table 1. (These designations are common for the different parts of BSENISO 3506. The composition ranges are based on part 1. The table shows some of the grade designations, which have been used, in other British Standards

Table 1 – Chemical Compositions for Austenitic Stainless Steel Fasteners
Grade
Chemical Composition (% maxima unless stated)

Notes
Either sulphur or selenium (less common) is allowed in grade A1.
These additions make the steel free machining for ease of manufacture but can reduce the corrosion resistance under certain conditions such as marine environments (chloride pitting attack risk)
Grade A2 does not specify molybdenum additions but allows these (Normally the deliberate addition of molybdenum makes the grade A4).
The carbon level of grade A4 is allowed to be up to 0.12% max. to obtain specified mechanical properties at larger diameters.
The less common grades A3 & A5 are included in the standard and are based on the A2 & A4 grades respectively. These have additions of either titanium or niobium/tantalum to form ‘stabilized’ grades and can be used as alternatives to A2 or A4 grades, with carbon levels restricted to 0.03% max, in applications where there may be a risk of intergranular corrosion.

Hague Fasteners excel in these less common “stabilised” fastener grades and are one of very few UK manufacturers that carry stocks of Grade A5 class 80 (A5-80) bar material for production of special stainless threaded fasteners.

The standards also refer to a duplex composition as steel group “FA” (ferritic-austenitic) in their informative annex sections. This grade (similar to a 1.4462, 2205 of EN 10088-1) is
not currently included in BS EN ISO 3506 but is likely to be included in the future, the standard suggests.

Mechanical Properties
Three “property classes” are assigned to each of the austenitic stainless steel fastener grades in parts 1 and 2 of BS EN ISO 3506. Table 2 shows the 0.2% proof stress, tensile strength and elongation values for each of these property classes for the austenitic stainless steel bolts, screws, studs and nuts.

Table 2 – Mechanical Properties for A1, A2 and A4 Austenitic Stainless Steel Bolts, Screws, Studs and Nuts (BS EN ISO 3506 Parts 1 & 2)

Notes
The mechanical property limits are minima.
Property class 50 represents the steel in the annealed condition.
The most common & readily available supply condition is property class 70, which represents a “cold drawn” for the bar stock from which the fasteners are made.
Property class 80 is based on severely hard cold drawn bar.

All tensile stress values are calculated and reported in terms of the nominal tensile stress area of the thread.

The elongation measurement is determined on the actual bolt or screw length and not on a prepared test piece. This is expressed in millimetres (mm) of extension and not as a percentage elongation.
i.e. A = (L2 – L1) (where L1 = original length and L2 = length after fracture) d = nominal diameter of bolt, screw or stud.

Hague Fasteners are not concerned with the tonnes of Far Eastern, uncertified, imported A2 & A4 commercially available standard bolts and nuts. Hague Fasteners forte is the specialist manufacture of bolting components in Quality Assured EU sourced raw materials particularly in the higher property classes, A2-70, A2-80, A4-70, A4-80, A5-70, A5-80

Hague Fasteners – Specialists in Anti-Corrosive Fasteners since 1971
Contact us with your next manufactured bolting enquiry.

Special Fasteners, Stainless Steel Fasteners, Super Duplex, UNS-S32760

Super Duplex Fasteners

Jon Hague

Hague Fasteners are critical Special Fastener manufacturers in all Super Duplex materials particularly Super Duplex UNS-S32760 and the various grades and specifications it is referenced in, including:-

Werkstoff 1.4501
S32760 SA
S32760 FLT (Fastener Low Temperature)
S32760 FG (Fastener Grade)
ASTM A276 S32760 Condition A
ASTM A276 S32760 Condition S
Norsok MDS D57
Zeron 100SA
Zeron 100FG (Fastener Grade)
Zeron 100FLT (Fastener Low Temperature)
Astm A182 F55
X2CrNiMoCuWN25.7.4

Hague specialise in the manufacture and supply of UNS S32760 super duplex fasteners and precision components manufactured to Customers drawings and designs. All Super Duplex Stainless Threaded Fasteners are manufactured from UK/EU sourced manufactured material ensuring critical components are quality assured for use in aggressive environments.

Special UNS S32760 Fasteners such as Hex Bolts , Hex Nuts , Socket Capscrews, Round Washers, Spring Washers, Engineer Studs, Studbolts, Socket Setscrews, Socket Countersunk screws, Split Pins & custom fastener machined components to OEM drawings are manufactured in small to medium batches on a daily basis at Hague Fasteners Limited, with materials released to NORSOK and Exxon Mobil specifications where required.

Our manufactured ZERON 100 (UNS S 32760) high strength, corrosion resistant stainless steel special fasteners offer Strength, toughness, corrosion resistance, whilst our rapid manufacturing times ensure availability whilst maintaining affordability.

F55 Super Duplex (UNS S 32760) offers excellent properties in sea water service (aerated, chlorinated sea water) and also in process pipe work applications (CO2/H2S/Cl environments at high temperatures and pressures).

This Super Duplex grade ensures our manufactured special bolting complies with ISO 15156 / NACE MR0175 part 3 whilst exhibiting excellent resistance to localised corrosion and chloride stress corrosion cracking in marine atmosphere up to 70°C.

Our high integrity fasteners are used in topside process pipe work, production and test manifolds, process gas coolers, risers, gas compression, HT/HP pipe work systems, sub sea flow loops, subsea heat exchangers, and general pipeline applications.

SPECIAL FASTENER MATERIALS

Special Fastener & Bolting Made to your designs and drawings