RS PRO Black, Self-Colour Steel Hex Socket Cap Screw, ANSI B18.3 1936-1960, 3/8in x 1 1/4in

Imperial UNC Thread Socket Cap Head Screws

When you need a hexagon socket cap screw to give you a smooth contour and surface, then the Holo-Krome screw is an excellent choice.
These Holo-Krome Imperial UNC thread socket caps screws are stronger than conventional screws of the same size as they are Thermo Forged®, meaning that you use fewer to complete the job.

Standards

Threaded in accordance with American standard ASME B18.3