Metallics JG5HTB22 Bolts 1/4-20 x 4-1/2 G5 Hx Tap Blt S (Jar 50)

Yes. A hex tap bolt is fully threaded, which is what separates it from a standard hex cap screw with a plain shank. The JG5HTB22 runs 1/4-20 threads, right hand, at 20 threads per inch, over a 4-1/2 inch length, so you can set your grip depth anywhere along the bolt instead of being locked to a fixed thread length.

That is the intended use. These are medium carbon steel cap screws, heat treated to Grade 5 with 105,000 psi minimum tensile and yield strength and a Rockwell C19-30 hardness. Motor mounting to machinery is the listed application, along with automotive and truck repair work. For vibrating motor loads, pair them with a locking nut or thread locker, which is not included.

Shank outside diameter runs 0.2450 to 0.2500 inch, so a 1/4 inch clearance hole is tight. Drill 17/64 inch for a standard clearance fit, or 9/32 inch where you need some adjustment to line parts up. Threads are right hand, 20 per inch, so a standard 1/4-20 nut or tapped hole takes them.

They are steel with a zinc finish, which handles indoor and dry or occasionally damp conditions. Zinc plating is a sacrificial coating, not a marine or chemical barrier, so for continuous wet exposure, washdown areas, or coastal work you want 18-8 stainless hex tap bolts in the same 1/4-20 x 4-1/2 size instead.

The JG5HTB22 is flagged compliant for both ARRA and Buy American in the Metallics product data, with country of origin China. On a federally funded job, submit that compliance designation with your documentation package, since the compliance basis and the origin need to be read together by whoever is approving substitutions.

Grade is about strength, not size. The JG5HTB22 is Grade 5: medium carbon steel, heat treated, 105,000 psi minimum tensile and yield, Rockwell C19-30. Grade 2 is unhardened low carbon steel and runs well below that, which is fine for sheet metal, strut, and light bracket work but not for a motor base, a driveline bracket, or anything carrying a shock load. Same 1/4-20 thread either way, so they interchange dimensionally but not structurally.

Material standard is AISI 1008 through 1026 carbon steel, heat treated to reach Grade 5 properties. That matters if you are welding near the fastener or specifying to a drawing that calls out a material grade range, since it tells you what is in the bolt rather than just how hard it ended up.