Specification Brand : Small Parts BulletPoint1 : The package length is 7.62 centimeters BulletPoint2 : The package height is 0.762 centimeters BulletPoint3 : The package width is 10.16 centimeters BulletPoint4 : Package Weight : 0.15 pounds BulletPoint5 : Easy To Use:The surface of the plastic washers for screws are smooth and burr-free, beautiful and easy to use, the round washer is easy to fasten with screws or nails, also can be easily removed, suitable for use in foam board insulation, stabilizing gypsum ceilings, installing polystyrene boards, hanging foam boards and so on Color : White ExteriorFinish : Bronze ExternallyAssignedProductIdentifier : 9557540151255 ItemName : Small Parts Bronze Flat Washer, Plain Finish, 1/2" Hole Size, 0.56" ID, 1-1/4" OD, 0.075" Nominal Thickness (Pack of 10) ItemPackageDimensions_Height : 13 centimeters ItemPackageDimensions_Length : 0.8 centimeters ItemPackageDimensions_Width : 12.4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : flat-washers Manufacturer : Small Parts Material : Bronze MetalType : Copper ModelNumber : LuYEGGC NumberOfItems : 10 NumberOfPieces : 10 PartNumber : B009OJU4TA ProductDescription : 100pcs Polypropylene Washers 45mm(Screw not included) Features: 1. Compact & lightweight, easy to install, easy to hold and use. 2. Plastic washer for fixing and supporting rigid foam insulation foam boards. 3. The polypropylene washers are made of tough polypropylene, which can ensure a nice rigidity and balance. 4. The load spreading washers with flat bottom for flush mounting, which are suitable for nails and screws. 5. White washers for screws fit for insulation foam board, expanded polystyrene boards, extruded polystyrene and many kinds of foam boards. Specification Product Name: Plastic Washers Color: White Material: Polypropylene Quantity: 100pcs Each Washer Size: 45 mm/ 1.77 inch in diameter,a 5 mm center hole.