Metallics HHN14M Nut 1/4-20 Hvy Hx Nut St-Zn (1000pcs)

They're 1/4-20, so a 1/4 inch diameter with 20 threads per inch, the standard UNC coarse thread for that diameter. They'll run onto any 1/4-20 bolt, rod, or threaded stud.

Yes. 1/4 inch all-thread rod is cut 1/4-20 UNC, which is exactly what the HHN14M is tapped to, so it threads straight onto rod used for conduit hangers, strut, and channel nuts. Heavy hex means a thicker body and wider across-the-flats dimension than a standard hex nut, which gives you more thread engagement and a bigger bearing surface on a washer or fitting.

The HHN14M is steel with a zinc plating, which is a mild corrosion coating meant for dry interior and protected use. For sustained outdoor exposure, washdown areas, or anywhere near chemicals or salt, step up to hot dip galvanized or stainless 1/4-20 nuts instead.

1000 pieces per box. That's a bulk shop quantity, which is how electrical contractors and MRO stockrooms usually buy 1/4-20 nuts for hanger rod, strut, and panel work rather than counting them out by the job.

Same thread, different body. A heavy hex nut is taller and measures larger across the flats than a finished hex nut of the same thread, so it carries more load and spans a slightly oversized hole better. Downside is clearance: in a tight box or a close hole pattern a heavy hex may not turn with a standard wrench size, so use a regular hex nut where space is cramped.

HHN14M is the Metallics manufacturer part number for the 1/4-20 heavy hex steel zinc nut in the 1000 piece box. Use that number when matching a submittal or reordering to keep the same fastener across a facility.