uxcell Knurled Thumb Nuts, 12Pcs M4 Carbon Steel Nut High Head Through Hole for 3D Printer Part, Black

Description: [Material] Our knurled thumb nuts are made of carbon steel, with black 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 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. Specification: Material: Carbon Steel Fastener Type: Knurled Thread Size: M4 Exterior Finish: nickel plated Metal Type: Carbon Steel Package Included: 12 Pcs x M4 Knurled Nuts