Metallics JSHC10112 10-24 x 1-1/2 in. Socket Head Hex Cap Screws - Alloy Steel Black - Each

It's a 10-24 socket head cap screw, 1-1/2 inches long, in black alloy steel. Packaging is a jar, and the order minimum is 100 pieces, so you buy it by the jar rather than the piece.

Yes. The JSHC10112 is cut 24 threads per inch in the UN (unified) thread series, which is the standard 10-24 coarse thread found in tapped holes on enclosures, strut fittings and equipment frames. Thread engagement is the same as any 10-24 machine screw; the difference is the internally wrenched socket head and the alloy steel strength.

Yes, and that's the main reason to choose one. The black alloy steel socket head cap screw delivers 180,000 psi minimum tensile and 162,000 psi minimum yield with a Rockwell C39 hardness, which is above an equivalent-size Grade 5 or Grade 8 hex head cap screw. Because it's wrenched internally with a hex key, it also needs less surface area or counterbore clearance than a hex head that requires a wrench swing around it.

No. The JSHC10112 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. On a project with domestic sourcing requirements you'll need a documented domestic-origin fastener instead.

Treat it as an indoor or protected-location fastener. The finish is a black alloy steel surface, not a zinc or galvanized corrosion coating, so in damp, washdown or exterior conditions it will rust. For wet or outdoor runs, specify a zinc-plated or stainless cap screw instead.

A hex key. The head is a socket type with a hex drive, so it's driven internally with an Allen wrench or hex bit, not a screwdriver or an open-end wrench. That's what lets the head sit down in a counterbore where there's no room to swing a wrench.

It gets full mechanical testing. Cap screws with a length of 3D or greater (D being the nominal diameter) are subject to tensile strength, yield strength, elongation and reduction of area testing. At 1-1/2 inches on a #10 diameter, this one is well past that threshold. Elongation is 10 percent minimum and reduction of area 33 percent minimum on machined specimens.

Both. Metallics lists the field application as the electrical, plumbing, heating and air conditioning industries, and it's carried as an electrical fastener. Typical use is mounting equipment, panels, hangers and strut accessories where a high-strength screw with a low-profile internally wrenched head is wanted.

The jar weighs 1.6 lbs, with package dimensions of 3 x 3 x 3.6 in. Useful if you're stocking a van drawer or bin and need to know what the 100-count jar takes up.