Metallics JSHC345 3/4-10 x 5 in. Socket Head Hex Cap Screws - Alloy Steel Black - Each

Head width runs 1.107 to 1.125 in. and head height 0.74 to 0.75 in., so a counterbore needs to clear roughly 1-1/8 in. diameter and at least 3/4 in. deep if you want the head flush or below the surface. Head geometry follows ASME B18.3-2012.

This alloy steel socket head cap screw is rated 170,000 psi minimum tensile and 162,000 psi minimum yield, hardness Rockwell C39. That is greater tensile strength than equivalent sizes of Grade 5 or Grade 8 hex head cap screws, and because it is internally wrenched it needs less surface area or counterbore around the head. If your drawing calls out a Grade 8 hex bolt by designation, though, substitute only if the spec allows an alternate head style.

No. The JSHC345 is not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. If your contract carries a domestic sourcing clause, this screw will not satisfy it.

Sold in a jar with a 25 each minimum order. Jar weight comes in at 7.78 lbs for the 25 pieces of 3/4-10 x 5 in. Other sizes and quantities are available by request.

At 5 inches long on a 3/4 in. diameter, the screw is well past the 3D length threshold, so it falls under tensile strength, yield strength, elongation, and reduction of area testing. Elongation is 10 percent minimum and reduction of area 33 percent minimum on machined specimens. That matters when an inspector asks for mechanical property verification rather than a material callout.