Specification Brand : uxcell BulletPoint1 : Material: Aluminum Alloy; Thread Size: 1/4-20; Drill hole size: 9mm / 0.35"; Fastener Type: Hollow BulletPoint2 : Mechanical internal thread, materials, uniform wall thickness, surface treatment, corrosion resistance, and high strength. BulletPoint3 : Drill a hole according to the size of the rivet nut installation hole, insert the rivet nut, and tighten the locking nut with the rivet tool. BulletPoint4 : Widely used in sheet metal, household thin iron cabinet, roof, equipment casing, etc. BulletPoint5 : Widely used in metal sheets or non-metal plastic, wood, and other sheets, rivet nuts can be firmly fixed on the sheet to provide tight thread locking force. Color : Silver DriveSystem : Spline ExteriorFinish : Silver FinishType : Silver GradeRating : Industrial ItemName : uxcell 1/4-20 Rivet Nuts Aluminium Alloy Knurled Flat Head Threaded Insert Nut Silver 25pcs ItemPackageDimensions_Height : 13.8 centimeters ItemPackageDimensions_Length : 1.9 centimeters ItemPackageDimensions_Width : 9.6 centimeters ItemPackageQuantity : 25 ItemTypeKeyword : rivet-nuts Manufacturer : uxcell Material : Aluminum MetalType1 : Aluminum MetalType2 : Iron ModelNumber : a20113000ux0325 NumberOfItems : 25 NumberOfPieces : 25 PartNumber : a20113000ux0325 ProductDescription : Feature: A Rivet Nut fastener is a tubular rivet with internal threads. The material is too thin to machine the thread. It requires a tool or device to install in seconds from one side of the work. The added benefit of not only being a dependable fastener, but they are also ready to use with clean threads available for screw attachments. Blind Rivet Nuts also are used when an application has little or no access to the backside as they can be installed from the front side of the workpiece. Specification: Material: Aluminum Alloy Finish: Anodic oxidation Thread Size: 1/4-20 Drill Hole Size (+/-0.1): 9mm / 0.35" Total Size: 15mm x 12mm/0.59" x 0.47"; (L*Max.D) Package Content: 25(+/-2%) x Rivet Nuts