ASTM A1084 Bolts

ASTM A1084 Bolts — Specifications & Dimensions

ASTM A1084 bolts are externally threaded fasteners with an integral head, manufactured per ASME B18.2.1, ISO 4014/4017, and DIN 933/931. TorqBolt produces ASTM A1084 bolts in metric (M6–M100) and imperial (1/4"–4") diameters with custom lengths from 10 mm up to 3000 mm.

Head Styles Available

Thread & Shank

ASTM A1084 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. Thread fits per ASME B1.1 (Class 2A) or ISO 965 (6g) by default; tighter Class 3A / 4h6h on request.

Mechanical & Certification

ASTM A1084 bolts achieve characteristic tensile, yield, and elongation per the source-material spec, with proof-load testing and hardness verification per ASTM F606 / ISO 898-1. Each lot ships with EN 10204 3.1 (or 3.2) certificates listing chemistry, mechanicals, hardness, and dimensional inspection. NACE MR0175 / ISO 15156 sour-service certification on request.

Specialty Fastener Alloys

TorqBolt manufactures specialty fasteners across the full range of corrosion-resistant alloys, high-temperature superalloys, and engineered metallurgies required by process industries. Beyond high-volume Inconel, Hastelloy, Duplex, and stainless grades, our supply chain covers the long tail of specification-driven alloys for unique service envelopes.

Each specialty alloy is sourced from approved mills with full melt traceability through a closed forging route. Heat-treat condition, mechanical properties, and corrosion testing are controlled to the customer's drawing or governing specification — ASTM, ASME, AMS, MIL, NORSOK, NACE, or proprietary end-user codes. EN 10204 3.1 / 3.2 material test certificates issued with every lot.

Third-party inspection by TUV, Lloyd's, BV, DNV, SGS, and Intertek arrangeable. NACE MR0175 / ISO 15156, NORSOK M-650, API 6A, API 20E, and PED 2014/68/EU compliance available across the alloy range.

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