Metallics JMBHC616PL Bolt M6 x 16 HXBT 10.9 Pln-St (Jar 100)

It's an M6 x 16 mm hex head bolt in property class 10.9 plain steel. M6 is the thread diameter and 16 mm is the shank length under the head, so it suits thin-stack clamping jobs, panel and enclosure mounting, and strut or bracket work where you only need about half an inch of grip. Class 10.9 is the high-tensile metric grade, well above common 8.8 hardware.

No. The JMBHC616PL is plain (uncoated) steel, which has no corrosion protection and will rust in wet, humid, or exterior conditions. Keep it indoors and dry, or in an assembly where it's painted or otherwise protected. For wet locations, exterior enclosures, or anywhere washdown happens, specify a zinc plated or stainless M6 x 16 hex bolt instead.

One hundred pieces per jar. The jar pack is the standard way these small metric fasteners are supplied, so it works well for a service van or a shop bin where you're pulling a few at a time rather than ordering by the box for a single install.

The jar contains bolts only, 100 of them. Nuts, flat washers, and lock washers are ordered separately. If you're bolting through unthreaded material you'll need M6 nuts and, for vibration-prone equipment, M6 lock washers or thread locker. Into tapped metal, the bolt alone is enough as long as you have at least the thread engagement your material calls for.

Generally yes on strength, since 10.9 is a higher tensile class than 8.8 and the M6 x 16 size is the same. Two cautions worth knowing: higher-class steel is harder and less ductile, and the specified torque for 10.9 is higher than for 8.8, so torque to the 10.9 value only if the joint and the mating threads can take it. Where a spec names 8.8 for a reason (a shear-critical or deliberately yielding joint), stay with what's specified.

Standard M6 hex head bolts take a 10 mm wrench or socket across the flats. The JMBHC616PL is a hex head bolt, so a 10 mm socket on a ratchet or a nut driver handles it. Metric only here, no SAE size is a clean fit.

At M6 x 16, the bolt is short enough that it runs threaded essentially full length under the head, since standard metric hex bolts in short lengths carry thread to the head or near it. That matters if you were counting on an unthreaded shoulder to bear in a clearance hole, in which case you'd want a longer bolt with a defined grip length, or a shoulder bolt.