HVAZI 205PCS M2.5-M12 Stainless Steel Nylon-Insert Hex Lock Nuts Kit

HVAZI 205PCS M2.5-M12 Stainless Steel Nylon-Insert Hex Lock Nuts Kit

• This kit includes total 205 pieces stainless steel nylon insert hex locknuts covering M2.5(45pcs), M3(40pcs), M4(35pcs), M5(30pcs), M6(25pcs), M8(15pcs), M10(10pcs), M12(5pcs). Complete metric size range eliminates repeated separate purchases for equipment maintenance and assembly projects
• Locknut main body adopts stainless steel material, featuring excellent rust-proof, anti-oxidation and acid & alkali corrosion resistance. High hardness and tensile strength, not easy to deform or crack under torque, long service life in humid workshop and electrical equipment environments
• Each hex nut is equipped with elastic nylon locking ring inside. The nylon insert creates strong friction against bolt threads to stop loosening caused by continuous vibration, greatly improving fastening stability for motor, machinery and automotive parts. Reusable for multiple disassembly & installation
• All nuts adopt standardized metric internal threads with burr-free smooth cutting, perfectly matched with M2.5-M12 metric bolts and machine screws. Hexagonal outer profile fits standard spanner & socket tools for fast installation and removal
• Equipped with a sturdy plastic storage box with separate divided slots for each specification. Clear classification prevents mixing and loss of tiny locknuts, compact lightweight design convenient to carry to workshop, laboratory, home repair and outdoor DIY work