Square Nuts

Square Nuts

H-STRUT Threaded Fastener Square Nuts are designed with specially formed teeth in the parallel channel recesses to grip the returned lip of the channel. The shearing action of the teeth assures positive locking of the H-STRUT channels to the fittings.

Submittal Sheets_Square Nuts Request Quote


H-STRUT Threaded Fastener Square Nuts are manufactured from mild steel bars, and are case hardened to a depth of 0.003" to 0.005" after machining, conforming to ASTM A-576 GR1015. Selected sizes also available in Stainless Steel.


All H-STRUT Grip Lock Nuts and Hardware have an electro-galvanized finish (ASTM B-633), unless otherwise noted.


On the H-STRUT Grip Lock Nuts, consult the selection table which shows the correct locking nut for each size channel. On the Hardware please specify the diameter or size required, and length where applicable.

Technical Information

Diameter Wt./100 Pcs.
1/4" 0.9
5/16" 1.6
3/8" 2.7
1/2" 5.8