Metallics JSRM61 8-32 x 5/8 in. Round Head Slotted Machine Screws - 18-8 Stainless - Each

8-32 is the standard thread used for device mounting in outlet and switch boxes, and the Metallics JSRM61 screw is an 8-32 thread at 32 threads per inch with a 5/8 inch length. That length gives you enough reach for a receptacle or switch yoke sitting on a plaster ring without bottoming out. The round head stands proud rather than sitting flush, so use it where the head can sit on the surface, not in a countersunk hole.

No. The JSRM61 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If you are buying for a federally funded job with domestic sourcing requirements, these will not satisfy it.

The JSRM61 is made from 18-8 stainless, the common austenitic grade used where plated steel would rust, so it holds up in wet and outdoor locations better than a zinc-plated machine screw. Metallics lists it for electrical, plumbing, heating and air conditioning work. Hardness runs Rockwell B85-B95 with a tensile strength of 80,000 psi minimum. Note that stainless tensile figures for machine screws are approximations, since there is no single performance standard for them.

They ship in a jar of 100, which is the order minimum, at 0.43 lbs per jar. Metallics notes other sizes and quantities in the SRM round head machine screw line are available by request.