Button Head Socket Screw with Washers M3x6 10B21 Carbon Steel

Button Head Socket Screw with Washers M3x6 10B21 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.

Technische Daten

Bestellung & Versand

Sie brauchen eine bestimmte Größe, Festigkeitsklasse oder Norm? Senden Sie uns eine Anfrage – wir kalkulieren nach Zeichnung und nach DIN-, ANSI-, GB- und JIS-Normen.

About this fastener assembly

This is a fastener assembly in 10B21 Carbon Steel, at strength class Grade 10.9, supplied nickel plated, with an M3 thread and a 6 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 fastener assembly arrives with the washer already on the screw, which removes one loose part from the assembly line and one from the parts bin. Used on volume assembly work — appliances, electronics, furniture and automotive trim — where handling time per fixing matters.

10B21 is a boron-treated low-carbon steel used for grade 8.8 fasteners where formability matters. It hardens reliably with a small boron addition.

Grade 10.9 is alloy steel at 1000 MPa tensile / 900 MPa yield, typically supplied black oxide or Dacromet. Avoid electroplated zinc on 10.9 — acid pickling risks hydrogen embrittlement.

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.