The RS PRO set of 545 self-locking Nyloc nuts contains nuts in seven different sizes from M3 to M10 (3 mm to 12 mm diameter hole). They're supplied in a polypropylene storage box with nine compartments, so you'll always have the correct nut size to hand.

The nuts are made of A2 (304) stainless steel, meaning that they have good resistance to wear and tear and corrosion. They'll keep your materials securely fastened as their nylon collar construction makes them self-locking. This means they won't be loosened by vibration or when expanding and contracting due to temperature changes.

The nuts box is made of sturdy polypropylene, a tough material with good resistance to chemicals and heat, suitable for industrial and factory use. Like all RS PRO products, these self-locking nuts have been rigorously tested for quality. They're ideal for use in cars, motorbikes and other moving machinery.

• 545-piece nuts box
• Self-locking type nut to DIN 985 (self-locking nut standards) specification
• Thread sizes of M3, M4, M5, M6, M8, M10, and M12
• A2 (304) abrasion-resistant stainless steel
• Plain silver-coloured finish
• Supplied in a polypropylene compartment storage box
• RoHS (Restriction of Hazardous Substances) compliant

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