bs903-022 M4 Self-lock nut

This product is a self‑locking M4 nut designed for securing threaded components in hobby RC cars, trucks, and buggies. The M4 size fits standard metric fasteners used in suspension links, chassis braces, shock mounts, and other places that need secure hardware. The self‑locking (nyloc) design helps prevent the nut from loosening due to vibration or impacts during aggressive driving. Made to match OEM hardware specifications like Redcat Racing BS903‑022, it’s a reliable replacement or spare for routine maintenance and rebuilds.

Features:

• M4 size self‑locking nut

• Nylon insert resists loosening from vibration

• Metal construction for strength

• Fits suspension, chassis, and accessory mounting points

• Ideal replacement hardware for RC vehicles

• Compatible with Redcat Racing and similar metric‑hardware models

• Helps maintain secure assembly under load