20-pack 304 stainless square washers for strut channel systems distribute load around bolt holes, prevent pull-through, and resist corrosion to extend framing life; fits Unistrut and similar channels with a 12.7 mm hole, 41.3x41.3 mm plates, 2.78 mm thick

304 Stainless Square Washers for Strut Channel 20 Pack
✔️ 20-pack, 41.3x41.3 mm (1.625x1.625 in), 2.78 mm thick, 12.7 mm hole

These square plate washers are designed for strut channel systems (Unistrut and similar) to spread load around bolt holes and prevent pull-through in metal framing. They’re ideal for electrical, mechanical, and construction installations where corrosion resistance and a clean appearance matter.

✅ Material: 304 stainless steel with vibratory finishing
✅ Size: 1-5/8" x 1-5/8" (41.3 mm x 41.3 mm)
✅ Thickness: 7/64" (2.78 mm)
✅ Hole: 1/2" diameter (12.7 mm) for standard bolts
✅ Pack: 20 washers

💡 What is a handy question about plate washers in strut channel systems?

These washers help with load distribution and bolt security in metal framing projects.

- load distribution across the channel surface
- corrosion resistance in outdoor or damp settings
- compatible with standard 1/2" bolts and strut channels
- easy installation without special tools