Metallics JMHTB10501 Bolts M10 x 50 C10.9 Hx Tap Blt St-zn (Jar 50)

Yes. The JMHTB10501 is an M10 bolt with a 1.5 mm thread pitch, right hand thread, so it mates with standard M10 x 1.5 coarse nuts and tapped holes. Wrong-pitch M10 fine threads (1.25 mm) will not engage.

The JMHTB10501 has a 50 mm shank length measured under the head, and because it is a tap bolt the thread runs all the way up to the head. So the full 50 mm is usable: subtract your washer and nut engagement, or your tapped hole depth, from that 50 mm to get grip. There is no unthreaded shoulder to work around.

Strength. The JMHTB10501 is class 10.9, rated 150,800 psi minimum tensile and 136,300 psi minimum yield, with a Rockwell C32-39 hardness from heat-treated alloy steel. Class 8.8 is the common medium-strength metric grade and runs materially lower, which is why 10.9 gets specified in automotive and fleet work where 8.8 will not carry the load. If your drawing calls out 8.8, a 10.9 is a stronger substitute but harder and less ductile, so follow the engineer's callout on anything structural.

Hex head, and the head measures 16.73 to 17 across, so a 17 mm socket or wrench is the size to have on the truck. Standard six-point metric tooling fits it.

These Metallics hex tap bolts have a washer face formed under the head, which gives a flat clean bearing surface against the joint. That is not a substitute for a washer where you are clamping soft material, slotted holes, or painted surfaces, and no washers or nuts are included with the jar, so order those separately.

They ship 50 to a jar, and 50 count is the order minimum, so the jar is the smallest buy. Other sizes and quantities in the MHTB and JMHTB series are available by request.

The finish on these is zinc plating over steel, which handles indoor service and incidental moisture but is not a marine or long-term exposed-weather coating. For wash-down, coastal, or buried work, step up to hot dip galvanized or stainless. Note too that high-strength 10.9 fasteners are the grade most sensitive to hydrogen embrittlement and stress corrosion, so keep them out of chronically wet, loaded applications.

The JMHTB10501 is flagged Buy American compliant and ARRA compliant in the product record, with China listed as country of origin. On a federally funded job where the specification requires domestic melt and manufacture rather than compliance by category, submit the origin to the spec writer before installing.