New Strong Heavy Nut Screw M20 20M-HN 1 piece

Catalog number: 20M-HN Features: ● Powerful tightening is possible. Applications: ● Used in combination with flat washers on stud bolts. Specifications: ● Diagonal size (mm): 30 ● Suitable bolts: M20 ● Height (mm): 20 Material/Finish: ● Steel (S45C) ● Treatment: Hardening (HRC13.8-27.6), black dye finish ● Hardness: HRC13.8-27.6 Caution: ● Do not tighten bolts that are bent or set at an angle. ● Do not tighten excessively.