Description:

[Thread Size] M4: Pitch: 0.7mm/0.03 "; Large end diameter: 12mm/0.47 "; Small end diameter: 7mm/0.28 "; Total thickness: 8mm/0.31 ".. [Material] Our knurled thumb nuts are made of carbon steel, with nickel plated in the surface, high-hardness, durable, wear-resistant, sturdy, not easy to rust or fade, with a flat head and round knurled body, which can be used for a long time.. [Advantage] Knurled thumb nuts are designed with sharp, clean, compact, and accurate thread, which makes it not easy to be out of shape or slide in the process of rolling.. [Easy to Use] Our adjusting nuts are designed with a knurled surface and clear slotted head, which can be easily tightened, installed, and removed by hand. No tools are required.. [Wide Applications] These round knob fasteners can be widely used in the machinery industry, furniture fastening, 3D printer beds, and other electrical or industrial products..