Metallics JMHTB835 Bolts M8 x 35 C8.8 Hx Tap Blt St-zn (Jar 100)

Yes, it is a tap bolt, so the thread runs the full length of the shank right up under the head. That matters when you are bolting through a thick flange or a motor foot and need thread engagement all the way through the grip; there is no unthreaded shoulder to work around. Overall fastener length is 35mm.

Pitch is 1.25mm, right hand thread. That is the standard coarse pitch for M8, so it mates with any standard M8 coarse nut or tapped M8 hole. If the hole you are threading into is M8 x 1.0 fine, this bolt will not go in.

Class 8.8 is a medium carbon steel bolt, heat treated, with 120,350 psi minimum tensile and 95,700 psi minimum yield, hardness Rockwell C23-34. That is the standard structural-duty metric class and it is what motor mounting and equipment anchoring typically call for. The description names motor-to-machinery mounting as a primary use, along with automotive and truck repair.

No on both counts. The JMHTB835 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If your project is on a federally funded job with domestic sourcing requirements, this is not the fastener to put on the submittal.

One jar holds 100 bolts, and the jar is the minimum order unit. Total weight of the jar is 1,701 g. Metallics also offers other sizes and quantities in the MHTB and JMHTB series by request.

The bolt is steel with a zinc finish, which is a general purpose corrosion coating suited to indoor and sheltered mechanical work, electrical, plumbing and HVAC service being the named applications. For constant wet exposure, standing water, or coastal duty, specify stainless rather than zinc plated steel.

There is a washer face beneath the hex head, which gives a clean bearing surface against the part and helps the head seat square. It is not a substitute for a flat washer on soft material, oversized holes, or slotted mounting feet, so plan on washers for those; none are included with the jar of 100.

Head width across flats measures 12.73 to 13, so a 13mm socket or wrench is the driver for it. Head height runs 5.15 to 5.45. Worth knowing if you are working in a tight motor pocket where only a short 13mm box end will reach.