Nickel 201 U Bolts manufactured at TorqBolt are corrosion resistant,high temperature resistant with ultimate tensile strength.
Dimensional standards as per DIN 3658 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 U Bolts are available in hot forged,cold forged and bar stock machined conditions depending upon the order quantity.
Nickel 201 U bolts are externally threaded fasteners with an integral head, manufactured per ASME B18.2.1, ISO 4014/4017, and DIN 933/931. TorqBolt produces Nickel 201 U bolts in metric (M6–M100) and imperial (1/4"–4") diameters with custom lengths from 10 mm up to 3000 mm.
Head Styles Available
Hex head — ASME B18.2.1, the workhorse for general bolting
Heavy hex head — thicker head for high-load joints, ASTM A325 / A490 patterns
Socket head cap (SHCS) — ASME B18.3 / DIN 912, ideal where space is limited
Nickel 201 U bolts are supplied with full or partial threading. Full-thread (UNC, UNF, ISO metric coarse/fine) for tension-only joints; partial-thread shank for shear loads where the unthreaded grip carries the load. Thread fits per ASME B1.1 (Class 2A) or ISO 965 (6g) by default; tighter Class 3A / 4h6h fits available on request. Engagement length follows the 1.5×D rule for tapped holes; 1.0×D minimum on through-bolting.
Mechanical Performance
Nickel 201 U bolts achieve characteristic tensile strength, yield, and elongation per the source-material spec, with proof-load testing and hardness verification per ASTM F606 / ISO 898-1. Torque-tension calibration is published per ASME PCC-1 for critical joints. Each lot ships with EN 10204 3.1 (or 3.2 on request) certificates listing chemistry, mechanicals, hardness, and dimensional inspection.
Custom Configurations
TorqBolt can produce Nickel 201 U bolts to drawing, with non-standard heads, drilled-shank variants, double-end, captive, or matched-set configurations. Coatings include zinc, PTFE, Xylan, hot-dip galvanized, and electroless nickel. NACE MR0175 / ISO 15156 sour-service certification on request.
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.
