T Shape Block Sliding Nut Hammer Spring Ball Zinc Plated Carbon Steel for 2020 3030 4040 Aluminum Profile Extrusion Slot Track

Material: Nickel-plated carbon steelSizes: 2020：0.80.31.3cm，3030：1.91.10.7cm，4040：2.11.30.7cmFeatures: Automatic ball bearing positioning, rust-resistant nickel plating, flexible external placement, standard threaded engagement, compatible with three profile sizes, stable heavy-duty load-bearingApplications: Assembly of 20/30/40 series European standard industrial aluminum profile frames, workbenches, equipment guards, and shelving unitsPackage Includes: 10 spring nuts (select 20-M6, 30-M6, or 40-M6 specifications as needed)