M4 MARINE GRADE STAINLESS A4 FORM B SPRING LOCK WASHERS COIL LOCK
A4 MARINE GRADE STAINLESS STEEL SPRING LOCK WASHERS TO FIT M4. Spring Lock Washers to fit M4 Bolts and Screws. M4 4.1mm 7.6mm 0.9mm. High quality spring washers made of A4 grade stainless steel and toDIN 127 B standards.