Metallics JMHTB625 Bolts M6 X 25 C8.8 Hx Tap Blt St-zn (Jar 100)

It's an M6 by 25mm hex head tap bolt in property class 8.8, zinc plated steel. Thread pitch is 1mm (standard M6 coarse) and the thread is right hand. Because it's a tap bolt, the thread runs the full shank right up under the head, so there's no unthreaded grip length to work around in a shallow tapped hole.

Yes, that's the stated use for this one. Class 8.8 is a heat treated medium carbon steel bolt with 120,350 psi minimum tensile and 95,700 psi minimum yield, hardness Rockwell C23-34. That's the normal structural-duty metric class for bolting a motor foot to machinery, and the washer face under the hex head gives it a clean bearing surface on the mounting flange.

No. The JMHTB625 is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. If your project carries a domestic-content clause, this bolt won't satisfy it and you'll need a domestically sourced M6 class 8.8 equivalent.

The JMHTB625 ships as a jar of 100 pieces, and the jar is the order minimum, so 100 is the smallest buy. The filled jar runs about 689 g. If you need a different count or a different M6 length, Metallics states other sizes and quantities are available by request.

Either way. A tap bolt is fully threaded to the head, so it works in a tapped hole as a cap screw and equally in a through hole with a class-matched M6 nut and washers. Fully threaded is actually the easier choice when you don't know how deep the engagement will be, which is why these get used so much in motor mounting and truck and automotive repair.

Zinc plating on steel is a mild corrosion coating, fine for indoor and sheltered mechanical work, electrical gear, plumbing, heating and air conditioning equipment, which is the application range Metallics lists for this bolt. For continuous weather exposure, washdown, or coastal air, step up to a stainless or hot dip galvanized M6 fastener instead; plated zinc will eventually rust through in those conditions.