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Will this fit USS threaded bolts?How do I increase pressure?Is it rust resistant?Can I use this with nuts?What is the inner diameter?

Hillman 5/16-in Yellow zinc Standard Flat Washer

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USS Hardened Flat Washers are great for adding resistance to your bolts and screws to prevent them from boring into the wood and weakening it. When selecting a washer, be sure to pick one that matches the fasteners you are already using. Picking a different finish may cause a chemical reaction, weakening your fasteners over time.

Yellow dichromate zinc plating offers moderate protection against rust and corrosion
Designed for use specifically with USS threaded bolts
Flat washers are used to increase the pressure a bolt or screw provides in material
Prevents a nut, bolt, or screw of the same finish and size from pulling through material

General
Finish	Yellow zinc	Package Quantity (Count)	1
Material	Steel

Dimensions
Washer Diameter	5/16-in	Inner Washer Diameter (Inches)	5/16-in

Certifications
CA Residents: Prop 65 Warning(s)	No

Warranty
Warranty	None

Miscellaneous
UNSPSC	31161800

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		Name	Current Item Hillman5/16-in Yellow zinc Standard Flat Washer
		Ratings
		Material	Steel
		Finish	Yellow zinc
		Inner Washer Diameter (Inches)	5/16-in
Hillman5/16-in Zinc-plated Standard Flat Washer	Hillman3/8-in Yellow Standard Flat Washer	Hillman1/2-in Yellow Standard Flat Washer	HillmanZinc-plated Standard Flat Washer 4-Count	Hillman5/16-in Stainless steel Standard Flat Washer	Hillman5/16-in Stainless steel Standard Flat Washer	Hillman5/16-in Ceramic Standard Flat Washer	Hillman3/8-in Zinc-plated Standard Flat Washer 4-Count	Hillman1/4-in Stainless steel Standard Flat Washer
1518				182	490			199
Steel	Steel	Steel	Steel	Stainless steel	Stainless steel	Steel	Steel	Stainless steel
Zinc-plated	Yellow	Yellow	Zinc-plated	Stainless steel	Stainless steel	Ceramic	Zinc-plated	Stainless steel
5/16-in	3/8-in	1/2-in	5/16-in	5/16-in	5/16-in	5/16-in	3/8-in	1/4-in