Metallics JSHC1078 10-24 x 7/8 in. Socket Head Hex Cap Screws - Alloy Steel Black - Each

Yes. The alloy steel socket head cap screw is rated at 180,000 psi minimum tensile and 162,000 psi minimum yield, which is above equivalent sizes of Grade 5 or Grade 8 hex head cap screws. Because it is wrenched from inside the head rather than across flats, it also needs less surface area or counterbore clearance than a hex head of the same diameter.

No. The JSHC1078 is not Buy American compliant and is not ARRA compliant, with multiple countries of origin. If your contract carries a domestic sourcing clause, this is not the fastener to submit.

Head and body dimensions follow ASME B18.3-2012, the standard for socket cap screws. If your drawing or spec calls out B18.3 hardware, the SHC series meets that dimensional callout.

Treat it as an indoor or protected-location fastener. The JSHC1078 is plain alloy steel with a black finish, which gives no meaningful corrosion protection on its own. For damp, exterior, or washdown work, specify a plated or stainless socket head cap screw instead.

They come in a jar of 100, and 100 is the order minimum. Buying a jar rather than loose pieces is the normal way shops stock a single size for panel and enclosure work.

Metallics lists the SHC series for the electrical, plumbing, and heating and air conditioning trades. In practice that means mounting hardware inside enclosures and panels, equipment and bracket attachment, and anywhere a low-profile internally wrenched head clears better than a hex head.

Yes. Metallics states that cap screws 3D or longer, where D is the nominal diameter, are subject to tensile, yield, elongation, and reduction of area testing. At a #10 nominal diameter of 0.190 inch, 7/8 inch is well past 3D. Elongation is 10 percent minimum and reduction of area 33 percent minimum on machined specimens.