Metallics JFMP51SS 10-32 x 1 in. Flat Head Phillips Machine Screws - 18-8 Stainless - Each

No. The JFMP51SS is listed as not Buy American compliant and not ARRA compliant, with country of origin shown as multiple. If your project carries a domestic sourcing clause, these will not qualify.

18-8 stainless is specified for general atmospheric corrosion resistance, and Metallics calls out food processing machinery and refrigeration equipment as typical uses, so damp and wash-down environments are within its intent. It also holds strength better than plain steel when the application runs warm. For salt spray or chlorine exposure, 18-8 is not the grade to reach for.

Tensile strength is 1200 lb minimum with a hardness of Rockwell B85-B95. Metallics notes those figures are guides only, since there is no national performance standard for stainless machine screws, so treat them as reference rather than a graded rating. Dimensionally the screws do conform to ASME B18.6.3-1998 and the thread to ANSI/ASME B1.1.

A machine screw like the JFMP51SS has a straight, uniform 10-32 UNF thread with no point, so it needs a pre-tapped hole or a nut. It will not cut its own threads into sheet metal or wood. Use it for device yokes, cover plates, enclosure covers and equipment panels that are already tapped; for bare sheet metal with only a pilot hole, a self-tapping or sheet metal screw is the correct part.

Metallics lists the FM and FMP series for the electrical, plumbing, heating and air conditioning industries. In practice that means panel and enclosure covers, device mounting, strut and bracket attachment, and refrigeration or food equipment work where stainless is wanted for corrosion resistance.

They ship in a jar of 100, which is the order minimum (one jar). Jar weight is listed at 0.77 lbs. Handy for a van stock or a shop drawer rather than counting out loose pieces.