Specification Brand : 80/20 BulletPoint1 : Measures 7.9 mm x 4.7 mm x 16 mm long with a 1/4-20 thread BulletPoint2 : 15 and 40 Series compatible BulletPoint3 : Made out of steel with a bright zinc finish BulletPoint4 : Loads from either the profile ends or side and allows for infinite positioning along the profile t-slot BulletPoint5 : Ridges that bite into the profile surface, creating a strong connection BulletPoint6 : Quality service: For any questions or concerns, feel free to contact us via Amazon email, and we will respond within 24 hours. Color : Silver DriveSystem : Slotted ExteriorFinish : Zinc FinishType : Black Zinc GradeRating : Commercial ItemName : 14165, 15 40 Series 1/4-20 Standard Drop in T-Nut Steel (500 Pack) ItemPackageDimensions_Height : 7 inches ItemPackageDimensions_Length : 6 inches ItemPackageDimensions_Width : 5 inches ItemPackageQuantity : 500 ItemTypeKeyword : strut-channel-nuts Manufacturer : 80/20 Inc. Material : Steel MetalType : Alloy Steel NumberOfItems : 20 NumberOfPieces : 20 PackageLevel : unit PartNumber : FF1/4-20 ProductDescription : The standard drop-in T-nut is a fastening option that loads either from the profile ends or side, which is helpful for applications where the ends are inaccessible. It has ridges that bite into the profile surface, creating a strong connection. ProductSiteLaunchDate : 2022-05-19T15:41:26.239Z Size : 1/4" Style : No Spring SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 31161700