6-32 Black-Oxide Socket Head Machine Screws

Our Socket Head Machine Screws are the strongest screws we offer.  These screws are heat treated, have a black-oxide finish and exceed Grade 8 standards. These are the same screws that are supplied in our mechanical kits.  From 1.00” length and up these screws are not fully threaded.  Machined from high-strength alloy steel with a Rockwell hardness of C39-C45 and a minimum tensile strength of 180,000 psi. Length is measured from below the head.