RUIAN Socket caps have a small cylindrical head with tall vertical sides. Allen hex socket drive is a six-sided recess for use with an allen wrench (hex key). Socket head cap screws are commonly used in machine assembly for removable panels and parts. They have a round cap with a hex head and are tightened with a socket wrench drive. Longer caps are easier to see when fastened, while button and flat head caps are less likely to snag clothing or linkages.

Thread Diameter: 3mm
Thread Size: 0.5mm
Screw Length: 20mm
Allen Hex Drive: 2.5mm
System of Measurement: Metric
High Quality Material Alloy Steel Grade 12.9
Package Included:100 x Socket Head Cap Bolts/Screws