Metallics JMHTB14301 Bolts M14 x 30 C10.9 Hx Tap Blt St-zn (Jar 50)

Fully threaded. It's a tap bolt, which means the threads run the whole 30 mm right up under the hex head, with a washer face beneath the head. If your joint needs an unthreaded shank through the clearance hole for shear location, a tap bolt is the wrong choice and you want a partially threaded hex cap screw instead.

Class 10.9 is a high-strength metric grade made from heat-treated alloy steel. These carry a minimum tensile strength of 150,800 psi and a minimum yield of 136,300 psi, with a hardness of Rockwell C32-39. That's a meaningful step up from the common class 8.8, which is why they get used in automotive and fleet work where 8.8 won't carry the clamp load.

The JMHTB14301 is zinc plated carbon alloy steel. Zinc gives you corrosion protection for dry indoor and sheltered use, but it is a sacrificial plating, not stainless. For continuous outdoor exposure, washdown areas, or coastal sites, plan on a stainless or hot dip galvanized fastener instead. Note also that Class 10.9 is high-strength alloy and high-strength plated fasteners are the ones sensitive to hydrogen embrittlement, so keep them out of aggressive chemical service.

No. This bolt is flagged as not Buy American compliant and not ARRA compliant, with multiple countries of origin. If your contract carries a domestic-sourcing clause, you need a domestically manufactured fastener instead.

No. The JMHTB14301 jar contains bolts only. There's a washer face forged under the hex head, but that is part of the bolt, not a separate washer, and it doesn't replace a hardened washer where one is called for. Order nuts and washers separately, and match them to Class 10.9 strength so the nut isn't the weak link.

They come in a jar of 50, and 50 each is the order minimum. That jar packaging suits a service truck or a shop bin rather than a single-fix repair. Other sizes and quantities are available by request.

It's a standard hex head, so an open-end wrench or a six-point socket does the job. Metric hardware of this size takes a metric socket, not an inch one. Because they're Class 10.9, torque them to the spec for a 10.9 fastener, not the lower 8.8 value, or you'll under-clamp the joint.