Nylon Insert Lock Nuts 1.Standard: DIN,ASIN,JIS 2.Material: Carbon steel 3.Diameter:3mm~32mm,1/4"~1-3/4" 4.thread:MM,UN Nylon Insert Lock Nuts DIN982 DIN985 • SIZEM4-M24,1/4"-1/2" • MATERIALMild steel & Stainless steel • FINISHzinc,black,chrome,nickel • QUALITYHigh-quality raw material, strict inspection • MAIN North America,South America,Eastern Europe,Southeast Asia,Mid East,Western Europe, ...