Keep your screws, nuts and bolts in top shape with this internal tooth shakeproof washer. It's part of our tried and tested RS PRO range.

The internal teeth, or small serrated points, helpfully 'bite' into nuts and bolts to keep them more secure. Once locked in, this washer protects them from vibrations and heavy weight. They're truly shakeproof, making them amongst the most effective lock washers.

Made from stainless steel, this washer is hardwearing and resistant to corrosion. It has a plain finish, and the internal teeth keep it looking discreet. This washer is suitable for use with M6 screws and bolts, with an overall thickness of 0.7 mm.

This product meets RS PRO's high-quality control standards and conforms with DIN (Deutsches Institut für Normung, or the German Institute for Standardisation) 6798J. It can be used at home or in the workplace.

• Shakeproof washer
• For M6 screw and bolt size
• Internal tooth washer type
• Inside diameter of 6.4 mm
• Outer diameter of 11 mm
• Thickness of 0.7 mm
• Made from corrosion-resistant stainless steel (type A4 316)
• Plain finish
• Conforms with manufacturing norm DIN 6798J for serrated lock washers
• 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