Socket Head Cap Screws 3x4mm (4) (DUB2120)

These socket head cap screws measure 3 mm in diameter and 4 mm in length, and are sold in a four-pack with a black oxide finish. They provide a compact fastening option for small assemblies where a hex-driven fastener is required.

Designed for tight spaces, the socket head design allows secure tightening with an Allen wrench, making them a practical choice for hobby projects and other miniature builds that need a reliable, unobtrusive fastener.