Specification Brand : PRIME-LINE BulletPoint : Made by Tamiya BulletPoint1 : Size: 5/16 inch X 3/4 inch OD BulletPoint2 : Most commonly used and versatile washer BulletPoint3 : Increases bearing surface and distributes load over a larger area BulletPoint4 : Can be used to prevent a screw or bolt from going into a hole too far BulletPoint5 : Can also be used as spacers by stacking more than one Color : Zinc ExteriorFinish : Brass ExternallyAssignedProductIdentifier : 4950344505753 ExternallyAssignedProductIdentifier1 : 049793106568 ExternallyAssignedProductIdentifier2 : 0049793106568 ExternallyAssignedProductIdentifier3 : 00049793106568 GpsrSafetyAttestation : 1 ItemName : Prime-Line 9079930 Flat Washers, SAE, 5/16 In. X 3/4 In. OD, Solid Brass (25 Pack) ItemPackageDimensions_Height : 11.6 centimeters ItemPackageDimensions_Length : 1.5 centimeters ItemPackageDimensions_Width : 8.4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : machine-screws Manufacturer : Prime-Line ManufacturerGrade : Grade 18 8 Material : Brass MeasurementSystem : Metric MetalType : Brass ModelName : TAM50575 ModelNumber : 9079930 NumberOfItems : 25 NumberOfPieces : 25 PartNumber : 9079930 ProductDescription : Stainless steel Sidewalk Bolts are often referred to as Hurricane Bolts because their most common application is installing hurricane shutters. They are also referred to as Sidewalk Bolts because of their ultra low profile head which can be easily stepped on or rolled over which is why they are also often used with concrete anchors to attach materials and fixtures to masonry surfaces. Sidewalk bolts in this selection are made of 18-8 stainless steel to withstand the elements without corroding or rusting, and feature a drive that can be installed using a Phillips or Slotted Screwdriver / bit. ProductSiteLaunchDate : 2017-08-21T19:13:53.782Z Size : 5/16 in. Style : Sidewalk Bolt SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 31161500 WasherType : Flat