H-STRUT Threaded Fastener Flat Washers 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.