Category Archives: Superalloy

Hastelloy, Hastelloy C276, Hastelloy C276 Fasteners, Special Fasteners, Superalloy

Hastelloy C276 Fasteners

Hastelloy Alloy C276 Fasteners

Hague Fasteners have been manufacturing outstanding corrosion resistant custom bolting and special fasteners in alloy C276 for over forty years.

20140304-222403.jpg

The Hastelloy specification and other international equivalent grades of Nickel-Chromium-Molybdenum superalloy has made this the material of choice for bolts and nuts used in severely corrosive environments where following fabrication and heat treatment the excellent pitting and crevice corrosion resistance is maintained.

Hague’s custom special fasteners have been manufactured to all international standards and in accordance with Customers own unique designs and drawings and subsequently installed into chemical processes equipment particularly where the process contains chlorine, hypochlorite, chlorine dioxide, organic acids, acetic anhydride, seawater, brine and sour oil and gas wellhead fluids.

Material Standards
Alloy C276, Hastelloy C276, UNS N10276, ASTM B574, Din 17752, ASTM B575, Din 17750, ASTM B366, ASTM B564, 2.4819

The massive range of Special Fastener items manufactured by Hague Fasteners in the United Kingdom includes:-
Hastelloy Alloy C276 Hex Bolts
Hastelloy Alloy C276 Bolts
Hastelloy Alloy C276 Nuts
Hastelloy Alloy C276 studs
Hastelloy Alloy C276 Studbolts
Hastelloy Alloy C276 Fasteners
Hastelloy Alloy C276 Socket Screws

Contact Hague Fasteners with all your Hastelloy Fastener requirements.

Nimonic 80A, Special Fasteners, Superalloy

Nimonic 80A Fasteners

Nimonic 80a (Alloy 80A) is one of the most popular Superalloys specified for use in Gas Turbines. Nimonic 80A Fasteners are often specified due to their ability to withstand very high temperatures. This makes Nimonic Bolts & Nuts ideal for use in aircraft parts and bespoke designed gas turbine components from turbine blades installation through exhaust nozzles on jet engines, where the pressure and heat the Nimonic Fasteners are exposed to are extreme.

20140302-215523.jpg

The massive variation in Hague’s Special Fastener manufacturing capabilities are displayed in the Special Fastener Gallery.

Some of the most common fasteners manufactured in this SuperAlloy are :-
Nimonic 80A Socket Capscrews
Nimonic 80A Hex Bolts
Nimonic 80A Hexagon Nuts
Nimonic 80A Engineer Studs
Nimonic 80A Engineer Waisted Studs
Nimonic 80A 12 Point Bolts
Nimonic 80A Studbolts and Nuts

Due to the very specialist applications and environments these Nimonic special fasteners are used in the quantities required are often only very small. This suits Hague’s Production perfectly, where quantities of 5pcs, 25pcs etc. are a typical manufacturing batch quantity.

Hague Fasteners also manufacture special fasteners in other Nimonic Grades including Nimonic 75 and Nimonic 90.

Hague Fasteners can manufacture and release all of their manufactured special fasteners to the following specifications covering the Super Alloy Nimonic 80A:-

ASTM B637, DIN 2.4631, DIN 2.4952, UNS N07080, BS4882 B80A, Alloy 80A, BS 3076 HR1, ASTM B 637, AECMA PrEn2188, AECMA PrEn2189, AECMA PrEn 2190, AECMA PrEn 2396, AECMA PrEn2397, AIR 9165-37, BS HR 601, BS HR1, DIN 17742, AFNOR NC 20TA, UNS N07080, Werkstoff Nr 2.4952, Werkstoff Nr 2.4631, NIMONIC 80a, MSRR 7095 and MSRR 7011, MSRR 7013, HR201, HR401, HR601, NA20, VAT80A

ASTM A193, ASTM A194, ASTM A320, British Manufacturing, BS4882, Made in England, Special Fasteners, Studbolts, Superalloy

British Manufacturing of Studbolts & Nuts – Special Fasteners






Since 1971 Hague Fasteners have perfected the art of Small Batch Special Fastener manufacturing.
From our inception in our earliest form in 1971, our early years saw us dominate the “breakdown delivery service” for troubleshooting emergency supply to the oil & gas industry. 

Hague’s British Engineering Group were one of the earliest British manufacturers of Petrochemical Studbolts & Nuts. Their flow line thread rolling production facility in Wolverhampton ensured ASTM quality assured bolting was shipped around the world for Rigs and pipeline maintenance, the original Studbolt Manufacturing Ltd*

However in the late 1980’s due to costing pressures brought about by cheap Asian competition, Hague Fasteners decided to step away from the standard ASTM material production, leaving the regular sized Studbolts & Nuts to the competition. Naturally the market was flooded with often inferior Chinese manufactured cheap bolting, but as was so often seen in the 80’s British Manufacturing simply couldn’t compete with imports from China.

Several British Companies appeared as stockholders to continue the supply of Petrochemical Studbolts and Nuts by importing container loads of Foreign manufactured product. Some even claimed to “Manufacture” but simply cutting lengths of studding to required lengths misleading as the bolts remain imported and not of EU Origin. During this time Hague closed their Studbolt Manufacturing mass production facility and decided to focus their niche on the more specialist material grades where quality & integrity is required above cost alone. 







To this day, Hague excel in the manufacture and supply of these Superalloy fasteners. Critical bolting in ASTM A453 660, Inconel 718, Inconel 625, Monel 400 along with Duplex & SuperDuplex Grades S31803, S32550, S32750, S32760. 

It is with increasing regularity now that Hague Fasteners are winning orders against the cheap inferior imports where our High Integrity Customers through all Industries are stipulating that Imported Fasteners particularly of Asian Origin must not be supplied. An about turn and a return to British manufacturing excellence. Saving a few pounds is irrelevant if the quality you’re receiving is substandard or the materials received is not in full compliance with the specification required. 


Don’t take unnecessary risks, source from the experts in Special Fastener production. 

The Craftsmen In Fasteners – Risk Free Bolting Solutions Since 1971

* The appearance of “Studbolt Manufacturing Ltd” (now non-trading) in 2003 was as a result of the name being adopted by another firm following the closing down of The Ralin Group’s original named Company in the 1990’s and does not have any connection to Hague Fasteners Limited.