Specification Brand : uxcell BulletPoint1 : Thread Diameter: M6; Slot Size: 8mm / 0.31"; Model: 4040 Series; Drive System: Slotted; Product Dimensions: 20.5 x 13 x 7.5mm / 0.81" x 0.51" x 0.3"(L*W*H); Package Content: 50 Pcs x T Spring Nut BulletPoint2 : Material: The t spring nut is made of carbon steel with lasting performance, high strength, and durability; The surface is nickel-plated, and corrosion-resistant to offer long-lasting protection against rust BulletPoint3 : Features: The roll ball elastic t-nuts, have clean thread and can be placed directly into the aluminum slot hole. Compared to slide-in t-nuts, these spring-loaded t-nuts with the built-in ball structure ensure the nut is firmly positioned and not easy to slide when you fix them BulletPoint4 : Easy to Install: First insert the t-spring nut into the pit where the two profiles meet, and make the spring ball on the back can fix its position so that the aluminum extrusion can not slide freely. Then tighten it with screws, making the connection of aluminum profiles simple and convenient for the straight extension connection between two profiles BulletPoint5 : Applications: T-nuts are widely used to build CNC routers, 3D printers, CNC laser cutters, robotics projects, 3D carvers, machine guards, workstations, and more. It also applies to aluminum construction, including manufacturing workstations, storage racking, industrial barriers, etc Color : Silver DriveSystem : Slotted ExteriorFinish : Nickel FinishType : Nickel Plated GpsrSafetyAttestation : 1 GradeRating : industrial ItemName : uxcell Roll-in Spring M6 T Nut, Roll Ball Elastic Nuts for 4040 Series Aluminum Extrusion Profile Suitable for Aluminum Profile with 8mm Groove Depth, Pack of 50 ItemPackageDimensions_Height : 14.8 centimeters ItemPackageDimensions_Length : 2.2 centimeters ItemPackageDimensions_Width : 13.2 centimeters ItemPackageQuantity : 50 ItemTypeKeyword : t-nuts Manufacturer : uxcell Material : Carbon Steel MaximumShearStrength : 300 MPa MetalType : Carbon Steel ModelNumber : hta240831hh000869 NumberOfItems : 50 NumberOfPieces : 12 PartNumber : a25010900ux0496 ProductDescription : Description:Material: The t spring nut is made of carbon steel with lasting performance, high strength, and durability; The surface is nickel-plated, and corrosion-resistant to offer long-lasting protection against rust Features: The roll ball elastic t-nuts, have clean thread and can be placed directly into the aluminum slot hole. Compared to slide-in t-nuts, these spring-loaded t-nuts with the built-in ball structure ensure the nut is firmly positioned and not easy to slide when you fix them Easy to Install: First insert the t-spring nut into the pit where the two profiles meet, and make the spring ball on the back can fix its position so that the aluminum extrusion can not slide freely. Then tighten it with screws, making the connection of aluminum profiles simple and convenient for the straight extension connection between two profiles Applications: T-nuts are widely used to build CNC routers, 3D printers, CNC laser cutters, robotics projects, 3D carvers, machine guards, workstations, and more. It also applies to aluminum construction, including manufacturing workstations, storage racking, industrial barriers, etc Specification: Product Name: T Spring Nut Material: Carbon Steel Finish: Nickel Plated Color: Silver Thread Diameter: M6 Slot Size: 8mm / 0.31" Model: 4040 Series Drive System: Slotted Product Dimensions: 20.5 x 13 x 7.5mm / 0.81" x 0.51" x 0.3"(L*W*H) Package Content: 50 Pcs x T Spring Nut