Incoloy 926 Nuts

Incoloy 926 Nuts, Specifications & Dimensions

Incoloy 926 nuts are internally threaded fasteners that mate with bolts and studs to form clamped joints. TorqBolt manufactures Incoloy 926 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

Locking Variants

For vibration-loaded joints, Incoloy 926 nuts are available as nyloc, all-metal prevailing-torque (DIN 980), flange-serrated (DIN 6923), and castle / slotted (DIN 935, cotter-pin retention).

Mechanical & Certification

Incoloy 926 nut threads are gauged per ASME B1.1 / ISO 965 to Class 2B / 6H. Proof-load testing per ASTM F606 verifies the nut develops the bolt's full strength without thread strip. Each lot ships with EN 10204 3.1 / 3.2 certificates. NACE MR0175 / ISO 15156 sour-service certification available.

Incoloy, Nickel-Iron-Chromium Alloys

Incoloy is the family of nickel-iron-chromium alloys positioned between stainless and Inconel. Combines high-temperature strength of nickel alloys with iron-substitution cost savings.

Incoloy 800 / 800H / 800HT are the most widely specified for furnace fixtures and steam-superheater bolting up to 1100°C. Incoloy 825 adds Mo + Cu for sulfuric and reducing-acid service. Incoloy 925 is age-hardenable for high-strength sour-service.

Incoloy fasteners ship per ASTM B408 (rod/bar) and B564 (forged) with EN 10204 3.1 / 3.2 certification including ASTM G28 intergranular corrosion testing.

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