Specification Brand : Aspen Fasteners BulletPoint1 : Tooth washers are made with small sharp and twisted teeth that, when compressed, prevent loosening. BulletPoint2 : Effective as a lock washer when used with a soft substrate, such as aluminium or plastic. BulletPoint3 : In electrical applications, the teeth create a grounding surface to improve the connection. ExteriorFinish : Zinc ExternallyAssignedProductIdentifier1 : 0698435926530 ExternallyAssignedProductIdentifier2 : 698435926530 ItemName : (25000 pcs) 5/16", Tooth Lock Washers, External Tooth, Steel, Zinc Plated ItemPackageDimensions_Height : 7 inches ItemPackageDimensions_Length : 9 inches ItemPackageDimensions_Width : 9 inches ItemPackageQuantity : 25000 ItemTypeKeyword : tooth-lock-washers Manufacturer : Aspen Fasteners Material : Spring Steel 1074/1075 PartNumber : WA050-516-025000 ProductDescription : Tooth washers are made with small sharp and twisted teeth that, when compressed, prevent loosening. Effective as a lock washer when used with a soft substrate, such as aluminium or plastic. In electrical applications, the teeth create a grounding surface to improve the connection.DIMENSIONAL ATTRIBUTES Diameter (Nominal): 5/16" Diameter (Dimension): 0.3125" Inside Diameter (Minimum): 0.32" Inside Diameter (Maximum): 0.332" Outside Diameter (Minimum): 0.588" Outside Diameter (Maximum): 0.61" Thickness (Minimum): 0.028" Thickness (Maximum): 0.034"PRODUCT ATTRIBUTES Category: Tooth Lock Washers System of Measurement: Inch Brand: Aspen Fasteners Form and Design: External Tooth Material: Steel Material Grade: Spring Steel Coating: Zinc Plated Coating Color: Clear Hardness Rating: Rockwell C40-C50 Origin: Origin Undefined Standards and Specifications: ASME B18.21.1 ProductSiteLaunchDate : 2024-06-06T04:01:10.421Z Size : 5/16" UnitCount : 25000 UnspscCode : 31161807