Lappkabel skintop gmp hf m counter nut lappkabel 53119200 this skintopreg gmp hf m 12x15 is a hexagonal counter nut made of special elastomer halogen free it is used when the cable screw joints need to be fixed and only one through hole is available if the cable screw joint is fixed in a threaded hole the counter nut can help attain an enhanced vibration protection lappkabel 53119200 skintop gmp hf m 12x15 counter nut m 12 x 15 mm