HARFINGTON 14pcs Knurled Knobs M4 x 30mm Male Thread 16mm Head Grip Plastic Metric Clamping Knobs Handles Thumb Screws with Threaded Stud, Black - hta230614hh0564

• Size - Male thread diameter: M4 (0.7mm pitch). male thread length: 30mm / 1.18". knurled head diameter: 16mm / 0.63". total height: 40.5mm / 1.59" Material - Thermoset plastic clamping knobs offer durability, excellent strength, wear, heat and chemical resistance, and electrical insulation. Zinc plated metal threaded studs offer excellent corrosion resistance, durability, and protect the knobs from rust and wear. Feature - The knurled knob provides an enhanced grip surface for easy adjustment even with wet or oily hands. The thumb screw with a threaded stud attaches to a mating component for quick and easy installation. Tightly-in plated steel metal insert allows adjustment. Application - Clamping handles provide a secure grip and ultimate adjustment and tightening control, easy to use. Suitable for lathes, drill presses, saws, packaging and woodworking machinery, printing and instrument equipment, food and industrial equipment. Note - Hold the knurled clamping knob with your hand and align the external threaded stud with the internal threads. Rotate the knob clockwise by hand to make sure it is securely fastened. Make sure to use the correct size bolt knob., Manufacturer: HARFINGTON