

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The GREENFIELD 313-038 is a galvanized square washer strut designed for use with 3/8 inch bolts in pipe hanger and strut channel assemblies. This flat, punched washer provides a broad bearing surface that distributes load evenly across strut channel flanges, reducing stress concentrations at the bolt point. Measuring 1.5 inches by 1.5 inches with a thickness of 0.12 inches, it is sized for standard strut channel hardware. The galvanized finish provides corrosion resistance in damp or mildly corrosive environments. Plumbers, pipefitters, and mechanical contractors use this hardware when assembling pipe support systems in commercial and residential construction.
This square washer strut is suited for use in pipe hanger assemblies where a standard round washer would not provide adequate bearing surface against strut channel flanges. It fits 3/8 inch threaded rod and bolt hardware commonly used in mechanical, plumbing, and HVAC support systems. Typical installations include overhead pipe supports, equipment mounting, and strut channel framing in both new construction and retrofit applications.
Designed as an OEM-style replacement or standard hardware component for 3/8 inch strut channel pipe hanger assemblies in plumbing, mechanical, and HVAC support applications.
Installation is typically performed by licensed plumbers, pipefitters, or mechanical contractors. Shut off any pressurized systems before adjusting or repositioning pipe hanger assemblies. Follow applicable IPC and IFGC support spacing requirements for pipe type and size. Use appropriately rated threaded rod and strut channel hardware to complete the assembly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!