DIN439 304 Stainless Steel A2-70 Hex Jam Nut Metric Low Profile Thin Lock Nut

DIN439 304 Stainless Steel A2-70 Hex Jam Nut Metric Low Profile Thin Lock Nut. Standard DIN 439 Specification Strictly comply with German DIN439 industrial standard, unified metric thread size & dimensional tolerance, high interchangeability, perfectly matched with standard metr. Ultra Low-profile Thin Structure Much thinner height than regular hex nuts, greatly save installation space, ideal for compact, narrow assembly positions. Premium 304 Stainless Steel A2-35 Material Strong rust resistance, corrosion resistance and oxidation resistance, adapt to humid, coastal, outdoor & weak acid working environments, long service life. Excellent Anti-loosening Performance Designed as jam lock nut, widely used for double-nut locking, effectively prevent screw loosening caused by vibration and mechanical shaking. Fine Precision Thread Neat, smooth internal metric thread, tight fitting, not easy to slip teeth, stable locking force.