Specification Brand : 80/20 BulletPoint1 : Measures .213 x .253 x .630 inches long with a M5 x 0.8 thread and a ball spring BulletPoint2 : 10 Series compatible BulletPoint3 : Made out of 1045 steel with a bright zinc finish BulletPoint4 : Comes with a ball spring to better position and hold within the t-slot Color : Black DriveSystem : Slotted ExteriorFinish : Zinc FinishType : Black Zinc GradeRating : industrial ItemName : 3920, 10 Series M5 x 0.8 Roll in T-Nut Ball Spring Steel (10 Pack) ItemPackageDimensions_Height : 7 inches ItemPackageDimensions_Length : 6 inches ItemPackageDimensions_Width : 5 inches ItemPackageQuantity : 10 ItemTypeKeyword : t-nuts Manufacturer : 80/20 Inc. Material : Steel MeasurementSystem : Inch MetalType : Alloy Steel NumberOfItems : 1 PackageLevel : unit PartNumber : 3920-10 ProductDescription : The roll-in T-nut with ball spring is a fastening option that loads from the profile ends or side, which is helpful for applications where the ends are inaccessible. The ball spring holds the T-nut in the T-slot, even when the profile is in a vertical position, simplifying the assembly process. ProductSiteLaunchDate : 2020-01-09T15:34:44.771Z Size : 1/4" UnspscCode : 31161700