NEW STRONG Flat Nut, Thread W 4 Minutes, 12-JN, 1 Piece

Catalogue number: 12-JN Features: ●The screw is inch size, so it can be clamped quickly. Applications: ●For fixing the jig body. ●Milling machine. ●Machining center. ●Grinding machine. ●Radial drill press. Specifications: ●Face size (mm): 21 ●Compatible bolt: W1/2 ●Height (mm): 7.0 ●Two-sided width size (mm): 21.0 Material/Finish: ●Steel (S45C) ●Treatment: Hardening (HRC13.8-27.6), black dye finish ●Hardness: HRC13.8-27.6