On this page 5 sections
Key features of hex & heavy hex bolts
- ASME B18.2.1 / ISO 4014 / 4017
- Partial or full thread
- Carbon, alloy, stainless and nickel alloys
- Structural and equipment use
Hex & Heavy Hex Bolts by material
Hex & Heavy Hex Bolts are available in the following grades. Select a grade for specifications and sizes.
Stainless Steel
- SS 304 Hex & Heavy Hex Bolts
- SS 316 Hex & Heavy Hex Bolts
- SS 316L Hex & Heavy Hex Bolts
- SS 321 Hex & Heavy Hex Bolts
- SS 347 Hex & Heavy Hex Bolts
- SS 410 Hex & Heavy Hex Bolts
- SS 904L Hex & Heavy Hex Bolts
- Duplex 2205 Hex & Heavy Hex Bolts
- Super Duplex 2507 Hex & Heavy Hex Bolts
Nickel Alloys
- Inconel 600 Hex & Heavy Hex Bolts
- Inconel 625 Hex & Heavy Hex Bolts
- Inconel 718 Hex & Heavy Hex Bolts
- Incoloy 800 Hex & Heavy Hex Bolts
- Incoloy 825 Hex & Heavy Hex Bolts
- Monel 400 Hex & Heavy Hex Bolts
- Monel K-500 Hex & Heavy Hex Bolts
- Hastelloy C22 Hex & Heavy Hex Bolts
- Hastelloy C276 Hex & Heavy Hex Bolts
Non-Ferrous Metals
Hex & Heavy Hex Bolts: sizes, finishes and testing
- Size range
- M6 – M100 and ¼" – 4" (larger on request); lengths to flange tables or drawing
- Finish
- Plain, black oxide, zinc, hot-dip galvanised, PTFE-based fluoropolymer, zinc-nickel
- Ends
- Chamfered points; full or partial thread
Testing & documents
- Chemical and mechanical tests of bar and finished bolts
- Hardness tests
- Proof-load and wedge tests where applicable
- Coating thickness and adhesion
- EN 10204 3.1 certificate; 3.2 with third-party inspection
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Other bolts types
Frequently asked questions
What sizes are hex & heavy hex bolts available in?
M6 – M100 and ¼" – 4" (larger on request); lengths to flange tables or drawing.
Which specifications cover hex & heavy hex bolts?
ASME B18.2.1 / ISO 4014 / 4017.
What are hex & heavy hex bolts used for?
Partial or full thread. Heavy hex bolts have a larger head for high-strength structural and pressure joints.
Which materials are hex & heavy hex bolts available in?
Stainless steel, nickel alloys, carbon and alloy steel and non-ferrous metals, depending on the specification. See the material list above.