VIGRUE 320PCS SAE and Metric Hex Lock Nuts Nylon Insert Nut Assortment Kit, 304 Stainless Steel Locknuts (M3 M4 M5 M6 M8 M10 M12 and 1/4-20 5/16-18 3/8-16 8-32 10-24)

Metric Hex Lock Nuts Nylon Insert Nut M3----65pcs M4----37pcs M5----30pcs M6----25pcs M8----17pcs M10----10pcs M12----6pcs SAE Hex Lock Nuts Nylon Insert Nuts 1/4-20----45pcs8-32----30pcs10-24----30pcs5/16-18----20pcs3/8-16----5pcs Features has good processing performance and high toughnesscorrosion resistance, heat resistance, low temperature strengthSuperior vibration resistanceAbrasion resistanceexcellent durability, high strength and corrosion resistance.

With nylon insert collar that is non-corrosiveThese hex nuts greatly reduce loosening under vibrations and torqueProviding better security and firm hold Keep good performance even after multiples times of use