Metallics JSHC10134 10-24 x 1-3/4 in. Socket Head Hex Cap Screws - Alloy Steel Black - Each

Yes. The Metallics JSHC10134 is a 10-24 screw with 24 threads per inch in the UN (Unified National) thread form, so it mates with any standard 10-24 tapped hole, nut, or strut insert. Shank length is 1-3/4 inches, so figure your grip plus enough thread engagement into the tapped member.

Head height runs 0.185 to 0.190 inch, so a counterbore of about 0.19 inch deep brings the head flush, with head diameter at 0.303 to 0.312 inch. That is a smaller footprint than a Grade 5 or Grade 8 hex head of the same diameter, which is the main reason socket heads get used where surface area or edge distance is tight.

Tensile strength on the alloy steel socket head is 180,000 psi minimum with yield at 162,000 psi minimum and hardness of Rockwell C39. That is above what an equivalent-size Grade 5 or Grade 8 hex head cap screw delivers, and it does it in a smaller head. If you are replacing a hex head bolt in a structural or vibration-loaded connection, this is a step up in strength, not a step down.

The SHC series socket head cap screws are made to ASME B18.3-2012, the standard that governs socket head cap screw head dimensions, socket size, and thread. If your drawing or submittal calls out B18.3 socket heads, these answer the spec. Note they are not Buy American compliant and not ARRA compliant, with country of origin listed as multiple, so they will not satisfy a domestic-content requirement on a federally funded job.

It is internally wrenched with a hex key, not a wrench on the outside of the head. For a 10-24 socket head cap screw the key is 5/32 inch, which matches the head width range of 0.303 to 0.312 inch on this screw. Because the driving is internal, you only need clearance for the key, not for a socket or box wrench around the head.

They come packaged in a jar with an order minimum of 100, so this is a bulk fastener line rather than a loose-piece item. For an electrician or mechanical contractor doing repeat 10-24 connections, that is a working jar for the van; for a single repair it is more than you need. Other sizes and quantities are available by request.

They are stocked for the electrical, plumbing, heating and air conditioning trades, which is where 10-24 machine thread shows up constantly: enclosure and panel hardware, strut and channel fittings, equipment mounting, and clamp assemblies. The high-strength alloy steel and compact socket head make them the pick when a hex head would not fit the available surface.

At 1-3/4 inches long on a #10 (0.190 inch nominal) diameter, this screw is well past the 3D length threshold, so it falls into the group subject to tensile strength, yield strength, elongation and reduction of area testing. Minimum elongation is 10 percent and minimum reduction of area is 33 percent on machined specimens. That matters if you are documenting fastener properties for a submittal.