ISO 7380 Button Head Socket Screw M16x40 SCM435 Alloy Steel

ISO 7380 Button Head Socket Screw M16x40 SCM435 Alloy Steel — stocked and shipped worldwide by SFX Fasteners. Available for single-piece retail orders — no minimum order — dispatched from our own warehouse within 24–48 hours.

Specifications

Manufactured to ISO 7380. Dimensions meet the published standard; tolerances per the standard’s normal grade unless stated otherwise. Full dimension table available on request.

Ordering & shipping

Need a specific size, grade or standard? Send us a quote request — we quote to drawing and to DIN / ANSI / GB / JIS standards.

About this ISO 7380 screw

This is a screw made to ISO 7380, in SCM435 Alloy Steel, at strength class Grade 12.9, supplied black oxide (hardened), with an M16 thread and a 40 mm length. Every dimension is stated against the standard named above; where a tolerance class matters to your design, ask us and we will confirm it in writing before you order.

A screw threads directly into the parent material or into a nut, so the thread form, the point and the drive decide what it can be used for. Commonly used on machinery, tooling, appliances, electrical enclosures, furniture and automotive assemblies where the head has to sit low or be driven from one side only.

Grade 12.9 is the highest common commercial grade at 1220 MPa tensile / 1100 MPa yield, used for socket head screws and highly stressed joints. Specify Dacromet or black oxide, not electroplated zinc.

M16 is a metric thread with an 16 mm nominal diameter and a coarse pitch of 2 mm (ISO 261). A standard hex head takes a 24 mm spanner across the flats.

Is this not quite the size or grade you need? Ask us — we produce small batches to drawing and to DIN, ISO, GB and JIS standards, and we consolidate pallet and container loads for trade orders.