Specification Brand : Generic BulletPoint1 : Premium Quality Material:The washer kit is made of high quality polypropylene, which is a plastic material with good insulating properties, small shape, durability, easy to grip, and firmness BulletPoint2 : Size:The round plastic washers have a diameter of 1.77 in and a 0.2 in center hole for easy fixing with the corresponding size screws, each washer is approximately 1.7 grams BulletPoint3 : Sufficient Quantity:The package includes 100 load spreading polypropylene washers, which are sufficient for daily replacement BulletPoint4 : Practical Functions:The plastic flat washers are good for fixing and supporting rigid foam insulation foam boards, ideal for fixing insulation foam boards, expanded polystyrene boards, extruded polystyrene and many kinds of foam boards 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 : Polypropylene ExternallyAssignedProductIdentifier : 9557540151255 ItemName : 45mm Plastic Washers Polypropylene Washers for Fixing and Fastening Foam Board, Plastic Flat Washers for Rigid Foam Insulation Fastening Installation, Load Spreading for Screws Nail (100) ItemPackageDimensions_Height : 18.8976 centimeters ItemPackageDimensions_Length : 7.2898 centimeters ItemPackageDimensions_Width : 15.5956 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : flat-washers Manufacturer : Generic Material : Plastic ModelNumber : LuYEGGC NumberOfItems : 100 NumberOfPieces : 100 PartNumber : 45mm Plastic Washer 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.