ISO 3506-1 Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners (Part 1)

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ISO 3506-1 is the standard for the mechanical properties of corrosion-resistant stainless steel bolts, screws, and studs. To match this to your program, talk with our team.

What ISO 3506-1 Covers

It defines the property grades and tensile requirements for stainless externally threaded fasteners used where corrosion resistance is required.

How the Test Is Run

Stainless bolts and screws are pulled to failure or proof loaded using suitable fixtures, and results are checked against the stainless property grade.

Why It Matters

Verified stainless fastener strength supports safe joints in corrosive service; high-force grips and threaded adapters are essential.

Reading the Designation

Cited as ISO 3506-1 with its edition year. Confirm the edition and specimen or fixture requirements before finalizing setup. To configure a testing setup, request a quote.

Related Standards

ISO 3506-2 covers stainless nuts and ISO 898-1 covers carbon and alloy steel bolts.

Request a Quote

Setting up stainless fastener testing to ISO 3506-1? Request a quote and our team will help you build a system matched to your fastener size and grade.


TensileMill CNC products for ISO 3506-1

Our specimen-preparation systems and testing equipment compatible with ISO 3506-1:


Bring ISO 3506-1 testing in-house with TensileMill CNC

TensileMill CNC builds testing systems used across quality control, research, and production. That typically means universal testing machines with wedge and tensile fixtures for fasteners, wire, and strand. Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.