DIN 906 Socket Head Plug M18 ML40Cr Carbon Steel

DIN 906 Socket Head Plug M18 ML40Cr Carbon 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 DIN 906. 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 DIN 906 screw

This is a screw made to DIN 906, in ML40Cr Carbon Steel, at strength class Grade 12.9, supplied black oxide, with an M18 thread. 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.

Black oxide is a conversion coating about 1–2 µm thick, usually oiled. It adds mild corrosion resistance and keeps dimensions exact, which matters on 10.9 and 12.9 parts — there is no hydrogen embrittlement risk.

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.

Sold by the piece, so one is a valid order. Stock lines leave our warehouse within 24–48 hours of cleared payment, and freight is calculated at checkout from the packed weight and the destination.