Metallics JSHC1038 10-24 x 3/8 in. Socket Head Hex Cap Screws - Alloy Steel Black - Each

Yes. The Metallics JSHC1038 is a 10-24 screw with a UN thread form at 24 threads per inch, so it mates with any standard #10-24 UNC tapped hole, nut, or strut insert. Length under the head is 3/8 inch, so your total grip plus thread engagement needs to stay within that.

Because it pulls more clamp load out of a smaller footprint. The JSHC1038 socket head cap screw is rated 180,000 psi minimum tensile and 162,000 psi minimum yield, above equivalent-size Grade 5 or Grade 8 hex head cap screws, and because it is wrenched internally with a hex key it needs less bearing surface or counterbore room around the head. That is the reason to pick it in tight electrical enclosures and equipment mounts rather than an externally wrenched bolt.

No. The Metallics JSHC1038 socket head cap screw is not Buy American compliant and is not ARRA compliant, with multiple countries of origin. On a federally funded job with domestic sourcing requirements, you need a domestically produced fastener instead.

Dimensions follow ASME B18.3-2012, the standard for socket head cap screws and hex keys. If your drawing or submittal calls out a B18.3 socket head cap screw in 10-24, the JSHC1038 meets that dimensional callout.

Treat it as an indoor, dry-location fastener. The JSHC1038 is alloy steel with a black finish, which is an oxide-type appearance finish rather than a plated corrosion barrier. For damp, exterior, or washdown work, specify a zinc-plated or stainless socket head cap screw in the same 10-24 x 3/8 in. size instead.

Not by the testing rule stated for this family. Tensile, yield, elongation and reduction of area testing applies to cap screws 3D or longer, where D is the nominal diameter, and elongation and reduction of area figures (10 percent minimum and 33 percent minimum) apply to machined specimens at least 4D long. At 10-24 diameter and 3/8 in. length, the published 180,000 psi tensile and 162,000 psi yield are the material property minimums for the grade rather than values proven on a screw this short. For a load path where tested strength has to be documented, order a longer screw in the same series.

Hardness is Rockwell C39, which is the heat treated alloy range for this class of fastener. The hex socket holds up to full torque provided you use a correctly sized, fully seated hex key; a worn or undersized key is what rounds out the socket, not the screw.

They ship in a jar, with a minimum order of 100 pieces. Good for a shop bin or a service van drawer rather than single-piece pickup.

They are stocked for the electrical, plumbing, heating and air conditioning trades, typically for equipment and enclosure mounting where the head has to sit in a tight pocket. Other diameters, lengths and pack quantities in the SHC series are available by request.