3M Constant Force Spring For Grounding CFS, 0.47/0.78 (#1), Jacketed Cable, 0.50 in (12,7 mm) 0.75 in (19,0 mm), 30 /Case

3M™ Constant Force Spring is designed for earthing or grounding applications. The spring applies a uniform radial pressure onto the cable when it is rolled onto the cable core or outside diameter.