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The BOWMALLOY 500025 is an SAE flat washer designed for use with 1-1/2 inch fasteners in structural and mechanical applications. Manufactured from Grade 8 carbon steel with a yellow zinc chromate finish, this washer provides corrosion resistance and load distribution across bolted connections. It conforms to ASTM F436, making it suitable for high-strength bolting applications. The inside diameter measures 1.625 inches, the outside diameter measures 3.000 inches, and the thickness is 0.187 inches. Electricians, millwrights, pipefitters, and general contractors use washers of this type when assembling structural connections that require a hardened, standardized bearing surface.
This washer is used in residential and commercial construction, industrial equipment assembly, and mechanical installations where SAE-standard flat washers are specified. It is appropriate wherever a 1-1/2 inch bolt or screw requires a wide bearing surface to distribute clamping load and prevent fastener pull-through or surface damage. The yellow zinc chromate finish adds a layer of corrosion protection suitable for mildly corrosive environments. Minimum order quantity is 10 pieces.
Designed as an OEM-style SAE flat washer for use with 1-1/2 inch fasteners in structural, mechanical, and general construction bolted assemblies conforming to ASTM F436 requirements.
Install using standard hand tools appropriate for the fastener size. Always power down or de-energize equipment before servicing mechanical connections. Inspect the washer seating surface for burrs or debris before torquing fasteners. Follow applicable building codes and engineering specifications for structural bolted connections.
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.
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