Specification Brand : SPAX BulletPoint1 : Hex Washer Head Screw: These Hex Washer Head lag screws are made of carbon steel and feature High Corrosive resistant (HCR) coating which makes these screws ideal for use in interior and exterior applications, including treated lumber BulletPoint2 : Grade 5 Durability: SPAX Hex Head Screws are heat treated to improve strength and reduce breakage. These superior quality screws are great for both interior and exterior applications BulletPoint3 : Patented Thread Technology: Featuring SPAX patented thread technology, these wood screws require no pre-drilling, and drive faster and easier than conventional lags and other structural lag screws. Hex head drive provides superior bit engagement BulletPoint4 : Built-on Washer Head: The corrosion resistant screws feature low profile built-on washer head design for a contemporary and sleek finish installation and eliminate the need and extra cost of a separate washer BulletPoint5 : Dimensions: 1/4" x 2” Hex Drive Washer Head HCR (Exterior) PowerLag Screw; Drive Bit Size: 3/8” Hex. Thread Type: Partial. 500 Pieces Per Pail Color : Black DriveSystem : External Hex ExteriorFinish : HCR (High Corrosion Resistant) ExternallyAssignedProductIdentifier1 : 712216020160 ExternallyAssignedProductIdentifier2 : 0712216020160 ExternallyAssignedProductIdentifier3 : 00712216020160 GradeRating : grade_ 5 ItemName : SPAX 1/4" x 2" Exterior Hex Head Structural Wood Lag Screws Powerlags Hex (500 EA) Bulk Pail Bit Included Heavy Duty Rust Resistant ItemPackageDimensions_Height : 25.7 centimeters ItemPackageDimensions_Length : 19.2 centimeters ItemPackageDimensions_Width : 25.7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : lag-screws Manufacturer : Altenloh, Brink & Co Material : Carbon Steel MaximumShearStrength : 8000 psi MeasurementSystem : Imperial MetalType : Alloy Steel ModelName : 3571820700500 ModelNumber : 3571820700500 NumberOfItems : 500 NumberOfPieces : 500 PackageLevel : unit PartNumber : 3571820700500 ProductSiteLaunchDate : 2014-09-27T10:53:53.904Z Size : 1/4" x 2" SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 500 UnspscCode : 31161500