Industrial Fastener · Stainless Steel Series

Stainless Hex Bolt

Stainless steel hex bolts in DIN 933 (full thread) and DIN 931 (partial thread) configurations, in A2-70 (304) for general corrosion resistance and A4-80 (316) for chloride and marine environments.

DIN 933, DIN 931, ISO 4014,... A2-70 (304), A4-80... M3 – M30
StandardDIN 933, DIN 931, ISO 4014, ISO 4017, ISO 3506
Grade / MaterialA2-70 (304), A4-80 (316), A4-70 (316)
Size RangeM3 – M30
FinishFinish per requirement

Product Overview

Stainless Hex Bolt sourcing essentials

Stainless steel hex bolts in DIN 933 (full thread) and DIN 931 (partial thread) configurations, in A2-70 (304) for general corrosion resistance and A4-80 (316) for chloride and marine environments.

Defined Standard

DIN 933, DIN 931, ISO 4014, ISO 4017, ISO 3506

Material & Grade

A2-70 (304), A4-80 (316), A4-70 (316)

Application Fit

Stainless steel hex bolts in DIN 933 (full thread) and DIN 931 (partial thread) configurations, in A2-70 (304) for general corrosion resistance...

Export Ready

Inspection records, lot labels, certificate options, and destination-ready packing.

Technical Data

Specification range

Final dimensions, mechanical properties, finish, and packing are confirmed against the RFQ and applicable standard.

StandardsDIN 933, DIN 931, ISO 4014, ISO 4017, ISO 3506
Property ClassA2-70 (304), A4-80 (316), A4-70 (316)
Size RangeM3 – M30
Material VerificationPMI testing available on request

Common surface finishes

Select an option to review its sourcing note. Exact coating system, thickness, and corrosion requirement are confirmed with the order.

Natural stainless provides corrosion resistance without an added metallic coating. Confirm the required grade and surface condition in the RFQ.

Quality Control

Checked before consolidation and export

Each order is matched to the specified standard and verified at practical control points before shipment.

01 · DOCUMENT

RFQ confirmation

Standard, size, grade, pitch, finish, certificates, packing, and destination are locked before production.

02 · INSPECT

Lot verification

Critical dimensions, thread fit, markings, finish appearance, and packing labels are sampled and recorded.

03 · RELEASE

Shipment approval

Photos and required reports are organized before consolidated loading and export documentation.

Buyer Questions

Frequently asked questions

304 vs 316 — what's the difference for hex bolts?

316 contains 2-3% molybdenum, providing significantly better resistance to chloride corrosion (seawater, coastal environments, pool chemicals). 304 is suitable for most general corrosion-resistant applications. 316 costs roughly 30-50% more than 304.

Ready to quote Stainless Hex Bolt?

Send the standard, size, grade, finish, quantity, packing requirement, and destination. Availability and lead time are confirmed with the inquiry.

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