Metallics JSRM16 8-32 x 3/4 in. Round Head Slotted Machine Screws - 18-8 Stainless - Each

The material is 18-8 stainless, the common austenitic grade used where corrosion is a concern, so these are a reasonable choice for damp, washdown, or exterior enclosures rather than plated steel screws that rust at the head slot.

It will not sit flush. This is a round head, not a flat or oval head, so it sits proud of the surface. Head width runs 0.287 to 0.309 in. and head height 0.107 to 0.12 in. If you need the fastener flush in a countersunk hole, order a flat head 8-32 instead.

No. These are flagged Buy American non-compliant and not ARRA compliant, with country of origin listed as multiple. If your project has domestic sourcing requirements, specify a domestically manufactured 8-32 stainless screw instead.

They ship 100 to a jar, and the jar is the minimum order quantity. Pack weight is listed at 0.54 lbs.

Slotted drive only, no Phillips or combo recess. Slot width is 0.045 to 0.054 in. and slot depth 0.058 to 0.077 in., so a flat tip in that thickness range seats properly. Slotted heads cam out easily under power, so hand driving or a slow, well-seated bit is the practical approach. If your crew drives everything with an impact, a Phillips or combo head 8-32 is the better pick.

It can be. At 3/4 inch of shank, the JSRM16 is longer than the typical cover screw and will bottom out or protrude into the box on a shallow flush mount. Use the 3/4 length where you are picking up extra thickness, a mud ring, spacer, or stacked plates, and drop to a shorter 8-32 for a plain flush device.

Tensile strength is listed at 80,000 psi minimum with a hardness of Rockwell B85-B95, dimensioned to SAE. Metallics notes that tensile values for stainless screws are approximations, since there is no single performance standard for stainless machine screws, so don't treat this as a structural fastener rating.