【Size and Package】: 15pcs 5/16"-18 T Spring Nut. Length：21mm (0.83"), Bottom width: 8mm (0.32"), Overall width: 13.3mm (0.52").Thread:5/16"-18.Spring-Loaded T-Nuts are packaged in plastic box, convenient storage and use 【Quality Material】-- T-Nut with ball spring made from durable carbon steel with a silver zinc coating for corrosion resistance and long-lasting performance, Can withstand high-strength tensile forces 【Spring-Loaded Design】--Spring-Loaded T-Nuts integrated ball bearings and springs allow quick, precision spring ball design can be fixed its position installation into standard 40 series /Slot 8 aluminum profiles 【Precision Fit】--5/16"-18 thread size ensures compatibility with standard bolts, screws, and corner brackets, hinges, and other aluminum extrusion accessories 【Dual Functionality】--Combines T-nuts and spring-loaded nuts for versatile use in industrial assembly, DIY projects, or furniture building.3D engraving machines,CNC milling machines, CNC laser cutting machines, robotic projects, machine guards etc Product Description Matrelt’s spring-loaded T-nut kit is engineered for seamless integration with 4040 Series and Slot 8 aluminum extrusions. The white zinc-plated carbon steel construction resists rust and wear, even in high-stress environments. The ball bearings and spring mechanism enable effortless insertion and secure locking within extrusion channels, eliminating the need for manual alignment. Ideal for machinery assembly, 3D printer frames, workbenches, or custom shelving systems.
Installation Steps
1. Position the Nut: Vertically insert the spring-ball T-nut into the aluminum profile slot, then gently slide it to the target position.
2. Automatic Locking: The steel ball bearings snap into the recessed area of the slot secure placement.
3. Tighten the Bolt: Directly thread the bolt into the nut without requiring additional fixation.
Specifications: Thread Size: 5/16"-18
Material: Carbon Steel (Silver Zinc Plated)
Compatibility: 4040 Series Aluminum Extrusions, Slot 8 Profiles
Package: 15 Pcs Spring-Loaded T-Nuts