Metallics JRM96SLT 10-24 x 1-3/4 in. Round Head Slotted Machine Screws - Steel Zinc - Each

These are low carbon steel screws made from AISI 1006 to 1022 stock with a 60,000 psi minimum tensile strength and Rockwell B70 to B100 hardness. That is standard commercial-grade machine screw territory, fine for mounting devices, covers, brackets and enclosures. For a structural or high-tension joint you want a graded cap screw, not a low carbon machine screw.

They ship in a jar of 100, and 100 count is the order minimum. The packed jar weighs 1.22 lbs. If you are buying for a truck stock or a shop bin, that jar is the unit you are buying, not loose single screws.

The JRM96SLT is zinc plated carbon steel. Zinc plating handles indoor and protected environments and gives light corrosion resistance, but it is not a marine or chronically wet finish. For exterior, washdown or coastal work, specify a stainless machine screw instead.

The JRM96SLT is flagged compliant for both ARRA and Buy American in the manufacturer's data, while the country of origin is listed as China. On a federally funded job, submit those two compliance flags with your product data and let the specifying authority confirm against the clause in your contract.

The JRM96SLT has a round head, a domed profile with a smaller flat bearing face than a pan head of the same diameter. Head width runs 0.334 to 0.359 inch and height 0.123 to 0.137 inch. Pan heads give a broader, flatter bearing surface and are the usual choice when clamping thin sheet metal or slotted brackets; round heads are the traditional profile on older device and cover hardware. Neither one countersinks, so if the drawing calls for flush, you need a flat head.