Three Eighths Inch Hex Bolts Grade Eight Set Of Ten With Hardened Flat Washers And Nylon Lock Nuts For Heavy Duty Anti Vibration Fastening One And A Quarter Inch Length Coarse Thread SAE J429
✔️ 10x Grade 8 bolts, 10 lock nuts, 10 washers included
This complete 10-pack fastener kit delivers Grade 8 hex bolts, hardened washers, and nylon locking nuts in a compact, ready-to-use set. Designed for heavy-duty automotive, trailer, machinery, and structural projects where vibration resistance matters.
✅ 3/8"-16 UNC bolts, 1.25 in (31.75 mm) length
✅ 10 Grade 8 bolts per kit (3/8"-16 UNC)
✅ 10 nylon locking nuts for vibration resistance
✅ 10 hardened flat washers for load distribution
✅ Yellow zinc finish for corrosion resistance
💡 What is a heavy-duty hex bolt kit used for in automotive and industrial applications?
These sets are handy for reliable, vibration-resistant assemblies in harsh environments.
- High load capacity with Grade 8 bolts and nylon locking nuts
- Anti-loosening performance under vibration and shock
- Includes washers for load distribution and quick installs
- Pack size ensures consistent replacements