Nickel 201 Hex Nuts manufactured at TorqBolt are corrosion resistant,high temperature resistant with ultimate tensile strength.
Dimensional standards as per DIN 934,ISO 4032,UNI 5587,BS 1768,BS 1857 are provided.
The raw material of these fasteners is renowned as registered trademarks like Inconel,Incoloy,Incoloy Alloys. Being a PED certified Fasteners Manufacturer by TUV Rheinland,our fasteners are accompanied with EN 10204 3.1/3.2 certification. Nickel 201 Hex Nuts are available in hot forged,cold forged and bar stock machined conditions depending upon the order quantity.
Nickel 201 Hex nuts are internally threaded fasteners that mate with bolts and studs to form clamped joints. TorqBolt manufactures Nickel 201 Hex nuts per ASME B18.2.2, ISO 4032/4033/4034, DIN 934/EN 24032, and DIN 6915 (heavy hex), in sizes M6–M100 and 1/4"–4".
Nut Height Categories
Standard / regular hex nut — ~0.875×D height, ASME B18.2.2 Type 1
Heavy hex nut — ~D height, full strength matched to bolt grade (A194 2H pattern)
Jam / thin nut — 0.5×D height, used as locknut against a primary nut
Coupling nut — long-form for joining two threaded rods
Cap / acorn nut — closed-end, decorative + thread protection
Locking Variants
For vibration-loaded joints, Nickel 201 Hex nuts are available as nyloc (polymer insert), all-metal prevailing-torque (DIN 980, distorted-thread style), flange-serrated (DIN 6923, integral washer face with anti-back-off teeth), and castle / slotted (DIN 935, cotter-pin retention). Each locking style trades reusability against prevailing-torque retention.
Thread & Mechanical
Nickel 201 Hex nut threads are gauged per ASME B1.1 / ISO 965 to Class 2B / 6H by default; high-strength variants use 3B / 4H6H. Proof-load testing per ASTM F606 verifies the nut can develop the bolt's full strength without thread strip; hardness range is controlled to prevent stress-corrosion susceptibility (HV 250–353 typical for high-grade nuts). Each lot is EN 10204 3.1 / 3.2 certified.
Special Patterns
TorqBolt also produces Nickel 201 Hex nuts in weld-nut, T-nut, square-nut, knurled thumb-nut, and rivet-nut patterns. NACE MR0175 / ISO 15156 sour-service certification available; NORSOK M-650 qualified mills supplying high-temperature service grades.
Pure & Low-Alloyed Nickel
Commercially-pure nickel grades (UNS N02200, N02201) are used where the application demands maximum nickel chemistry purity: electrical conductivity, magnetostriction, hot-caustic resistance, or food / pharmaceutical contact. Pure nickel is non-magnetic above its Curie point, weldable without filler in thin sections, and resistant to dry chlorine, fluorine, and hot caustic solutions where stainless steels fail.
Nickel 200 (N02200, >99% Ni, max 0.15% C) is the general-purpose grade for chemical-process and electroplating equipment. Nickel 201 (N02201, max 0.02% C) is the low-carbon variant required for service above 315°C to prevent graphitization that would destroy mechanical properties. Nickel 205 is the magnetic-grade variant. Nickel 270 (N02270) is high-purity electronics grade.
Pure nickel fasteners are supplied per ASTM B160 (rod/bar) and AMS 4730 with EN 10204 3.1 / 3.2 certificates including chemistry, hardness (HV 100-160 annealed, up to 250 cold-worked), and tensile testing. NACE MR0175 sour-service is qualified in the annealed condition. Welding uses pure-nickel filler (ENi-1) with copper-oxide-free flux to prevent weld embrittlement.
