NUT LOCKING STAINLESS STEEL M4 PK100; Thread Size - Imperial:-; Thread Size - Metric:M4; Fastener Material:Stainless Steel; Nut Type:Nylon (Polyamide) Locking; Fastener Plating:-; Product Range:Hexagonal Type T Nylon Insert Nut; SVHC:No SVHC (15-Jan-2018); Material:Stainless Steel