Socket Cap HX343105 M5 x 20mm, BZP, grade 12.9, supplied in a pack of 200.
Socket cap screws have a cylindrical head with an internal hex drive, allowing a high clamping force from a compact head that sits in a counterbore. Used in machinery, jigs, fabrication and anywhere a hex bolt head would foul adjacent parts.
Drive with an Allen key or hex bit.
