Metallics JG5HTB8 Bolts 1/4-20 X 4 G5 Hx Tap Blt St-zn (Jar 100)

Yes. A hex tap bolt is fully threaded from point to head, which is what separates it from a partially threaded hex cap screw. The JG5HTB8 is a 1/4-20 by 4 inch hex tap bolt with right hand thread at 20 threads per inch, so you get full thread engagement anywhere along the 4 inch length. That matters when you are bolting through variable stack-ups of channel, brackets, or motor feet and cannot count on the grip length landing in the same place every time.

Grade 5 carries 105,000 psi minimum tensile and 105,000 psi minimum yield, with a hardness of Rockwell C19-30, made from medium carbon steel that is heat treated. Metallics lists this bolt specifically for mounting motors to machinery, and it is common in automotive and truck repair. For a standard motor base or equipment foot that is the right class of fastener. Step up to a higher grade only where an engineered joint or a drawing calls for it.

The finish is zinc plating over steel. That is a sheltered-service coating: fine for indoor equipment rooms, mechanical spaces, motor mounts, and vehicle work, and it gives reasonable handling and humidity protection. For direct weather exposure, wash-down areas, or anywhere near chlorides, specify stainless or hot dip galvanized instead. Zinc plated Grade 5 is not a marine or permanently wet fastener.

JG5HTB8 ships as a jar of 100 bolts, and 100 count is the order minimum, so the jar is the smallest unit. The J prefix on the part number is the jar pack; the same bolt is catalogued in the G5HTB and JG5HTB series. Metallics notes other sizes and quantities are available by request if 1/4-20 by 4 inch is not the length you need.

Metallics flags JG5HTB8 as compliant for both Buy American and ARRA. Country of origin is listed as China. On a federally funded project, pull those two compliance flags and the origin into your submittal together, because the agency reviewing it will want both on the same line.

Either works. Because the JG5HTB8 is fully threaded 1/4-20 the full 4 inches, you can run it through two parts and take it up on a 1/4-20 nut, or thread it directly into a tapped hole in a casting or channel. Thread is right hand, 20 TPI, dimensioned to ASME B18.2.1-2012, so any standard 1/4-20 nut, lock nut, or washer set mates with it.

Medium carbon steel in the AISI 1008 to 1026 range, heat treated, finished with zinc plating. That heat treatment is what gets it to Grade 5 strength and Rockwell C19-30 hardness rather than the soft low-carbon bolt you would grab out of a bin. Worth knowing if you are welding near the joint or specifying by material rather than by grade.