PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specifications to which they are manufactured. Specifications allow for tolerances in dimension and shape, which can vary from lot to lot.

5/16 Flat Washer Machine Screw Pattern Low Carbon Steel Black Zinc Plated

Price Per Piece: $0.1136

Part #:: 0000-199530
Minimum Purchase:: 10000 pieces

PRODUCT SPECIFICATIONS (Part # 0000-199530)
Fastener Type:	Flat Washer Machine Screw Pattern
Size Description:	5/16
Diameter/Nominal Size:	5/16"*
Inside Diameter:	0.325-0.335"
Outside Diameter:	0.620-0.630"
Thickness:	0.046-0.054"
System of Measurement:	Inch
Grade:	2
Material:	Low Carbon Steel
Finish:	Black Zinc Plated
Used with:	Bolts/Screws up to Grade 5
Average Piece Weight:	0.0030500 lbs.

*Washer Sizing: Washer sizes are nominal (sized for the bolt that the washer will fit). Actual inside diameter is almost always larger than stated size. Please see the Inside Diameter spec in the table above, if available.

Washers are thin disk-shaped plates with a hole that is used to distribute the load of a threaded fastener such as a bolt or nut; often have an outer diameter (OD) about twice their inner diameter (ID), but this can vary based upon the washer. Washers come in many different varieties; flat washers, split lock washers, toothed lock washers, beveled washers in both steel and iron, etc.