Choose from our selection of No. 12 washers, including washers, lock washers, and more. Same and Next Day Delivery.

Finishing washers, also called trim or cup washers, are ideal for increasing the load bearing surface under a fastener's head by distributing the load. Perfect for use with flat or oval head screws, the sunken design gives a clean and decorative appearance as well.

Flat washers are great for adding resistance to your bolts and screws to prevent them from boring into the wood and weakening it. These SAE fine threaded washers are stainless steel to be corrosion resistant and designed to fit other fine fit bolts and washers.

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M12 Stainless Flat Washers, 10Pcs Metric Metal Fender Washers for Screws Bolts, 18-8 (304) Stainless Steel, Assorted Hardware Kit for Factories, Home, Shops, Construction (M12x37x3mm)

Finishing washers, also called trim or cup washers, are ideal for increasing the load bearing surface under a fastener's head by distributing the load. Perfect for use with flat or oval head screws, the sunken design gives a clean and decorative appearance as well.

50 Pieces M12 Flat Washers, Black Zinc Plated Steel, Inner Diameter 12mm, Outer Diameter 24mm, Thickness 1.5mm, Fender Washers, Metal Washers for Screws Bolts

These Hillman #12 Stainless Steel Flat Washers are great for adding resistance to your bolts and screws to prevent them from boring into the wood and weakening it. These washers are engineered to be corrosion resistant. Available in a 5-pack.

This Zinc-Plated flat washer helps prevent a nut or bolt head from pulling through the material. Featuring a round design with a hole in the center, this washer can also be used as a spacer. Use this flat washer in any application where two pieces are drawn together.