Metallics JSRM51 6-32 x 3/4 in. Round Head Slotted Machine Screws - 18-8 Stainless - Each

6-32 is the standard thread for electrical device and cover plate mounting, and that is exactly what the Metallics JSRM51 is: a 6-32 thread with 32 threads per inch, 3/4 in. long, round head, slotted drive. The 3/4 in. length gives extra reach when a device sits proud of the box or you are stacking a plaster ring or spacer. For a plate sitting flat on a box ear, a shorter 6-32 is usually the better choice since the extra length will just bottom out or stick through.

Head width runs 0.24 to 0.26 in. with a head height of 0.091 to 0.103 in. That domed round head sits above the surface rather than flush, so if your part is countersunk or you need the fastener flush with the face, a flat head 6-32 is the right call instead.

No. The JSRM51 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If your project carries domestic-sourcing requirements, you will need a documented domestic fastener instead.

They are 18-8 stainless, the common austenitic grade used where plated steel would rust out, so they are suited to damp, washdown, and exterior-adjacent work. Hardness runs Rockwell B85-B95 and tensile strength is rated 80,000 psi minimum. Note that tensile figures for stainless machine screws are approximations, since there is no single performance standard for them.

The JSRM51 ships as a jar of 100. Order minimum is one jar, and the packed jar weighs 0.38 lbs. Other sizes and quantities are available by request.

Field application covers the electrical, plumbing, heating and air conditioning trades. A machine screw mates with a tapped hole or a nut rather than cutting its own thread, so it is for bolting into pre-threaded parts: device and box ears, panel covers, equipment brackets, control enclosures. If you need the screw to form its own thread in sheet metal, you want a self-tapping screw, not this.