4Pcs Star Shaped Knob 3/8-16 5/16-18 Knob Through-Hole Manual Tightening Clamping Knob Plastic Black Threaded Nut

Size - Internal thread diameter: 3/8 inch, star head diameter 1.52 inches (38.7 millimeters), total height: 0.66 inches (16.7 millimeters) suitable for 3/8 inch to 16 rods.
Material - The screw in knob is made of high-quality nylon with a star shaped handle and threaded with galvanized carbon steel. It is beautiful and anti-aging, and its hardness ensures that the wire will remain sharp and functional for a long time to prevent problems such as peeling or crossing wires.
Easy to use - The star shaped knob features a star shaped handle design, making the nut easier to grip, tighten, and remove, and can be manually used without the need for a wrench.
Through hole design - Through hole nuts allow bolts or screws to pass through the nut, and screws that are too long can also be tightened for easier adjustment of length.
Widely used - Plastic knobs are suitable for T-shaped tracks, grooving fixtures, drilling machines, lathes, fixtures, electronic devices, milling fixtures, printing equipment, furniture, packaging, woodworking machinery, and other places where screws need to be fixed.

Size - Internal thread diameter: 5/16 inches, star head diameter 1.51 inches (38.5 millimeters), total height: 0.6 inches (15.1 millimeters) suitable for 5/16 inches to 18 rods.
Material - The screw in knob is made of high-quality nylon with a star shaped handle and threaded with galvanized carbon steel. It is beautiful and anti-aging, and its hardness ensures that the wire will remain sharp and functional for a long time to prevent problems such as peeling or crossing wires.
Easy to use - The star shaped knob features a star shaped handle design, making the nut easier to grip, tighten, and remove, and can be manually used without the need for a wrench.
Through hole design - Through hole nuts allow bolts or screws to pass through the nut, and screws that are too long can also be tightened for easier adjustment of length.
Widely used - Plastic knobs are suitable for T-shaped tracks, grooving fixtures, drilling machines, lathes, fixtures, electronic devices, milling fixtures, printing equipment, furniture, packaging, woodworking machinery, and other places where screws need to be fixed.