Metallics JSRM20P 8-32 x 2 in. Round Head Phillips Machine Screws - 18-8 Stainless - Each

They are 18-8 stainless, the common austenitic stainless grade used for corrosion resistance, so they hold up in wet, damp, and exterior locations far better than plated steel screws. Hardness is Rockwell B85-B95 with a minimum tensile strength of 80,000 psi. Note that tensile values for stainless machine screws are approximations, since there is no single performance standard for them.

It won't sit flush. This is a round head screw, not a flat or oval head, so the head sits proud of the surface: head height runs 0.107 to 0.12 in. with a head width of 0.287 to 0.309 in. If you need the head buried in a countersunk hole or flush under a plate, specify a flat head machine screw instead. Round heads are for through-holes and surface mounting where a bearing surface against the material is what you want.

No. These screws are not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. For a job with domestic sourcing requirements in the contract you will need a domestically produced fastener instead.

They ship in a jar of 100 pieces, and 100 is the order minimum. That is the shop-stock quantity, not a single screw, so it suits an MRO crib or a van stock refill rather than a one-off repair.

The JSRM20P is sold as screws only, 100 to a jar. A machine screw has a straight machine thread with no point, so it needs either a tapped hole or a matching 8-32 nut. If you are fastening through unthreaded material, order 8-32 nuts and washers separately.

Yes, the recess is dimensioned for a #2 Phillips. Recess diameter is 0.165 to 0.178 in., recess depth 0.075 to 0.101 in., recess width 0.03 in., with a gaging penetration depth of 0.064 to 0.090 in. A worn #1 or an oversized #3 bit is what causes cam-out on an 8-32 head this size.

Metallics lists the application as the electrical, plumbing, heating and air conditioning industries. In practice that means mounting devices and plates in deep boxes, strapping and bracket work, panel and enclosure hardware, and any fastening where a stainless screw is wanted for corrosion resistance. The dimensional spec follows SAE.