Metallics JMHTB6251 Bolts M6 x 25 C10.9 Hx Tap Blt St-zn (Jar 100)

Yes. The JMHTB6251 is a tap bolt, meaning the thread runs the full length of the 25mm shank right up under the head. There is no unthreaded grip section, so it works where you are threading into a tapped hole or a nut close to the bearing surface and need engagement all the way through. The hex head has a washer face beneath it.

The pitch is 1, which is M6 x 1, the standard coarse metric pitch for a 6mm bolt. Threads are right hand. Shank outside diameter is specified at 5.82 to 6mm, so it drops into a clean M6 x 1 tapped hole or takes a standard M6 coarse nut.

No. The JMHTB6251 is not Buy American compliant and is not ARRA compliant. Country of origin is listed as multiple. If your contract carries domestic sourcing requirements, you will need a domestically produced fastener instead.

Go to 10.9 when the joint needs more tensile capacity than 8.8 can carry. The JMHTB6251 is high alloy steel, heat treated, with 150,800 psi minimum tensile and 136,300 psi minimum yield, hardness Rockwell C32-39. That is the grade used in automotive and fleet work where load or clamp force is the governing factor. For general low-load mounting, an 8.8 is normally sufficient and easier to source.

Head width across flats is specified at 9.78 to 10, so a 10mm socket or wrench is the fit. Head height is 3.85 to 4.15. Overall width across the hex corners runs 11.05, which matters if you are driving these in a tight recess or counterbore.

100 pieces per jar, and the jar is the minimum order unit. The packed jar weighs 689 g. If you need a different size or a different count, Metallics offers other sizes and quantities by request.