Thinp 20 Pack 1/4-20 Knob, 6 Star Knobs 1/4 Inch Female Threaded Hexagon Head Thru Knob Plastic Clamping Knobs T Track Bolts for Lawn Mower, Umbrella Base, Woodworking Tools & Jigs (Black)

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Package Includes: You will receive 20 pieces of 1/4" 20-knob T-track bolts, a sufficient quantity for multiple projects and replacement needs, or to share with family or friends. Unique Design: The threaded knob features a precise 32-point star head, providing excellent tightening control for efficient and secure tightening without scratching your hands. Premium Material: Each 6 star knobs features a plastic shell and an embedded brass core, offering excellent workmanship, ergonomic design, a comfortable grip, and a non-slip feel. Easy to Use: The bolt passes completely through the tightening knob and extends out from the top, providing ample adjustment range, which is convenient when the screw is longer than required. Widely Application: The clamping knobs are suitable for 3D printers, CNC machines, woodworking fixtures, and are also ideal for various DIY projects requiring secure fastening.