5/16-18 Nylon Insert Lock Nuts 75 Pack, 304 Stainless Steel Hardware Nuts

Key features

• Package Content: 75 pack 5/16"-18 standard inch coarse thread (UNC) lock nuts, perfect match with matching 5/16-18 bolts and screws for secure installation.
• Premium Material: Made of 304 (A2-70) stainless steel with 18% chromium & 8% nickel, rust-proof and corrosion-resistant, strong and durable for long service life.
• Anti-Loose Design: Nylon insert creates elastic friction between threads, effectively prevents loosening under vibration and shock, reusable 3-5 times while keeping reliable locking.
• Wide Applications: Ideal for furniture assembly, automotive repair, machinery manufacturing, building construction, RC models and DIY projects.
• Easy To Organize: Nuts are packed in sealed plastic boxes with quantity labels inside, no loss or confusion; use torque wrench for best results and avoid over-locking.

Free shipping included. 30-day hassle-free returns.