10-Pack 1/4''-20x1'' Threaded Knurled Thumb Nuts, Black Plastic Knob Clamping Screws for Umbrella Base Replacement Grip Knob Screws

Good Adjustment: The male clamping knob can be used for track accessories, feather boards, woodworking clamps, and other applications requiring 1/4''-20 threaded knobs. Smooth Compatibility: The smooth surface finish allows seamless movement, enhancing overall functionality and providing a comfortable grip. Easy Installation: The star-shaped clamping knob offers good tightening control, allowing effective and secure tightening without scratching your hands. Specifications: Material: Carbon steel, plastic Finish: Galvanized Color: Black Thread Type: 1/4"-20 Thread Length: 1 inch / 25 mm Star Knob Diameter: 1 inch / 25 mm Package Includes: 10 x Threaded Knurled Thumb Screws

• Dimensions: Thread diameter: 1/4 inch; Thread length: 1 inch; Star knob diameter: 25 mm / 0.98 inch; Star knob overall thickness: 11 mm / 0.43 inch.
• High-Quality Materials: The star-shaped knob screws are made of carbon steel with a galvanized finish, offering wear resistance, rust resistance, and corrosion resistance; the knob is made of plastic with a smooth surface free of cracks, lightweight and durable. Easy to Install: The hexagonal nut makes heavy-duty clamping work comfortable and convenient, allowing quick installation.
• Easy Installation: The star-shaped clamping knob provides good tightening control for effective and secure tightening without scratching your hands.
• Wide Application: Threaded knobs are suitable for various applications including machinery, mechanical instruments, furniture modification, umbrella base replacement, and other industrial uses.
• Package Includes: 10 pieces of threaded knurled thumb screws that can be installed wherever needed to meet daily use and replacement needs.