Specification Brand : CONFAST BulletPoint1 : TAMPERPROOF-Anchor cannot be removed to provide security for item being attached BulletPoint10 : Head Style: Truss BulletPoint2 : ZINC PLATED-Provides rust resistance for dry applications BulletPoint3 : FOR CONCRETE ONLY-Fast, easy and strong fastening into solid concrete BulletPoint4 : NO SPECIAL TOOLS NEEDED-Drill the hole drive with a hammer; fast and simple BulletPoint5 : WARMBOARD Recommended-Recommended in the Warmboard-R radiant floor panel installation guide. BulletPoint6 : Diameter: 1/4" BulletPoint7 : Length: 1-1/2 inch BulletPoint8 : Material: Steel BulletPoint9 : Finish: Zinc Color : Yellow CompatibleGrooveDiameter : 0.375 inches ExteriorFinish : Zinc ExternallyAssignedProductIdentifier : 8945136167475 ExternallyAssignedProductIdentifier1 : 075352055312 ExternallyAssignedProductIdentifier2 : 0075352055312 ExternallyAssignedProductIdentifier3 : 00075352055312 FinishType : Yellow Zinc GradeRating : Residential IncludedComponents : Product & Instructions Guide ItemName : CONFAST 1/4" x 2-1/2" Split Drive Flat Zinc Plated (100 per Box) ItemPackageDimensions_Height : 2.5 inches ItemPackageDimensions_Length : 6 inches ItemPackageDimensions_Width : 5 inches ItemPackageQuantity : 1 ItemShape : Block ItemTypeKeyword : drive-anchors Manufacturer : CONFAST ManufacturerGrade : premium Material : Carbon Steel Zinc Plated MaximumShearStrength : 1248 MetalType : Alloy Steel ModelNumber : 05531 NumberOfBoxes : 1 NumberOfItems : 100 NumberOfPieces : 100 PartNumber : SDF14212 ProductDescription : ApplicationsThe anchor is made from Carbon Steel, and is Zinc Plated. This anchor is designed for use in Concrete only, and should never be used in block or brick base material.EnvironmentThe anchor is designed for use in a Dry environment.Head Style The anchor is a Flat Countersunk head and is designed to prevent the head from protruding above the surface of the item being attached.Hole Diameter/Bit DiameterThe anchor requires a 1/4" hole to be drilled in the base material (Concrete only). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill.Diameter of Anchor The diameter of the anchor is 1/4".Length Anchor The length of the anchor is 2-1/2"Minimum EmbedmentThe minimum anchor embedment into the concrete is 1-1/8". Therefore, the anchor must be installed so that a minimum of 1-1/8" of the anchor is embedded into the concrete.Maximum Fixture ThicknessThe maximum fixture thickness or the maximum thickness of the material being fastened for a anchor is 1-3/8". This will ensure that the minimum embedment of 1-1/8" will be met.Fixture Hole DiameterThe hole in the fixture or material being fastened must be larger than the designated diameter of the anchor. The 1/4" diameter anchor requires the hole in the fixture to be 3/8".Spacing between AnchorsEach anchor must be spaced a minimum distance of 2-1/2" from each other when measured center to center.Edge DistanceIt is very important not to install the anchor any closer than 1-1/4" from an unsupported edge of the concrete. ProductSiteLaunchDate : 2017-06-09T02:48:36.319Z Scent : scent Size : One Size SkipOffer : 1 Style : Hammer Drive Anchors SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 100 UnspscCode : 31161500