Need small-size lock nuts for model engineering applications? These 2BA lock nuts mate with small BS 57 standard hex-headed bolts that make scaled fastenings easier to represent. The lock nuts are also widely used in miniature instrumentation as they are viable for applications with space constraints.

Made from brass, these full lock nuts are nickel-plated to ensure good resistance to tarnishing, corrosion and rust. The hexagonal shape allows you to tighten them using a standard spanner. As part of the RS PRO range, this product undergoes rigorous testing for quality and durability. The lock nuts meet a range of international standards including protection against damage from electrostatic discharge (ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007).

BA sizing is commonly used in railway signalling, mainly for the termination of electrical equipment and cabling.

• Full-type 2BA lock nuts
• Small hex heads for use in miniature instrumentation and model engineering applications
• Nickel-plating on brass offers good resistance to tarnishing, corrosion and rust
• Complies with RoHS (restriction of hazardous substances) standards

RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards