Metallics JMHTB810 Bolts M8 x 10 C8.8 Hx Tap Blt St-zn (Jar 100)

It's an M8 bolt with a 10mm length and a 1.25 coarse metric thread pitch, right-hand thread. Because it's a tap bolt, the thread runs the full length of the shank right up under the head, so there is no unthreaded grip section to work around in a short through-hole or a tapped blind hole.

That is the intended use. The JMHTB810 is Class 8.8 medium carbon steel, heat treated to Rockwell C22-32, with a stated minimum yield of 92,800 psi. Metallics calls out mounting motors to machinery as the primary application, along with automotive and truck repair work.

They ship in a jar of 100, and the jar is the order minimum, so 100 pieces is the smallest quantity. Metallics does offer other sizes and quantities in the MHTB and JMHTB tap bolt series by request if M8 x 10 in a 100 count is not what your job needs.

The JMHTB810 is steel with a zinc finish, which is a dry-location and light-duty indoor corrosion coating. It's fine for electrical, plumbing, heating and air conditioning work inside a building. For sustained wet exposure, washdown, coastal air, or direct weather, specify a stainless or hot dip galvanized fastener instead; zinc plating will eventually rust through in those conditions.

Not for bearing surface alone. The hex head on the JMHTB810 is formed with a washer face underneath it, so it seats on a finished bearing surface without a separate flat washer. If you want a lock washer or a wide-area washer to spread load on soft or oversized holes, that is still an added item to specify.

No. The JMHTB810 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If you're buying for a federally funded project with domestic sourcing requirements, this bolt will not satisfy them and you'll need a domestically produced fastener.

A full jar of 100 comes in at 907 g. That's useful if you're consolidating a fastener order onto a pallet or checking a van load, since these get ordered a jar at a time.