Metallics JSQ2 Nuts 6-32 Square Nut St-zn (Jar 100)

The JSQ2 is a 6-32 square nut, so it mates with #6 machine screws cut at 32 threads per inch. If the screw you are matching is a #6-32 (the common size for device plates, junction box covers and small strut fittings), this is the nut for it. Anything coarser or a different diameter will not thread on.

That is exactly what the square shape is for. The flats let the nut seat against the inside lips of a channel or sit in a square cutout so it cannot spin while you drive the screw, which means one-handed tightening where you cannot get a wrench behind the work. Metallics lists the JSQ square nut for channel and strut, electrical, plumbing and heating and air conditioning work. A hex nut in the same spot needs a second tool to hold it.

No. The JSQ2 is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. If your contract carries a domestic sourcing clause, this nut will not satisfy it and you need a documented domestic fastener instead.

Steel with a zinc finish. Zinc plating handles normal dry indoor electrical and mechanical work fine, but it is not a stainless part, so for wet, washdown or corrosive locations you want an 18-8 stainless square nut instead.

Order it as Metallics JSQ2, part of the JSQ square nut series. That number covers the 6-32 size in zinc plated steel, jar of 100. Other thread sizes in the same JSQ series carry different suffixes.

Hardness runs Rockwell B68 to C32, a carbon steel range that holds up to hand-tool torque on a #6 screw without the threads deforming. Note this is a general purpose zinc plated steel nut, not a graded structural fastener, so match it to light fastening and support work rather than high strength bolted joints.