uxcell 12pcs Knurled Clamping Knobs M3 x 20mm Metric 304 Stainless Steel Male Thread Thumb Screw on Type 14mm Plastic Round Head Threaded Hand Bolt Stud Knobs Black

Additional Details from the Manufacturer

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• Standard Thread Size: M3 (0.5mm Pitch); Thread Length: 20mm / 0.79"; Knurled Head Diameter: 14mm / 0.55"; Total Height: 32mm / 1.26". The screws are neat and clear, the force is even, and it is not easy to slip.
• Safe and secure knurled thumb screws for the ultimate in adjusting and tightening control. Great for saw, drill press, lathe and routing jigs, fixtures, packaging machinery, printing equipment, woodworking machinery and equipment.
• 304 stainless steel threaded stud provides excellent corrosion resistance, oxidation resistance and high strength, ensuring durability and stability, preventing rust and providing reliable performance. The tightly-in metal insert ensures optimal durability and functionality, easy to install.
• Hand stud knobs with thermoset plastic knobs provide comfortable hand grip. The clamping knob is tight, sturdy and durable, with a smooth and beautiful surface.
• Always tighten the knurled knob securely to prevent any movement of the fixed assembly. Do not over-tighten the knob as this may damage or strip the threads in the mating assembly. Replace the knob if necessary.