Specification Brand : uxcell BulletPoint : Jet Fitting & Supply Corporation has been providing fasteners since 1946. Feel safe when buying from Jet! BulletPoint1 : Base Plate Thickness: 1.5mm/0.06''; Thread Type: Full Thread; Thread Size: 1/4''(D) BulletPoint2 : Product Name: T Nut; Material: Metal BulletPoint3 : Weight: 64g; Package Content: 20pcs x T Nut BulletPoint4 : Main Color: Silver Blue; Height: 8mm/0.32'' BulletPoint5 : Type: 4 Prong; Total Diameter: 17mm/0.67'' Color : Silver DriveSystem : External Hex ExteriorFinish : Metal ExternallyAssignedProductIdentifier : 3816003229648 ExternallyAssignedProductIdentifier1 : 0604267174827 ExternallyAssignedProductIdentifier2 : 604267174827 FinishType : blue GpsrSafetyAttestation : 1 GradeRating : commercial ItemName : uxcell 1/4'' Thread Dia 8mm Height 4 Prongs Full Threaded T-Nut Tee Nuts 20pcs ItemPackageDimensions_Height : 11.6 centimeters ItemPackageDimensions_Length : 2.2 centimeters ItemPackageDimensions_Width : 9.4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : t-nuts Manufacturer : uxcell Material : Metal MeasurementSystem : Inch MetalType : Aluminum ModelNumber : a16112600ux0057 NumberOfItems : 1 NumberOfPieces : 5 PartNumber : a16112600ux0057 ProductDescription : These nuts are used to provide a threaded socket in wood. Simply tap the nuts into a suitably sized hole and the prongs will hold them in position. T-Nuts provide a strong, reliable and easy to fit low cost anchor for wood and chipboard. T nut inserted into the appropriate size hole and tapped in with a hammer. The 4 prongs will stop the T nut from turning when the fixing is being tightened.