Bosch SDS-Clic Quick-Locking Nuts M13

Locking Nut Bosch 1603340031 is a durable metal locking nut with a silver finish designed for use with angle grinders. It clamps grinding discs with diameters between 115 and 230 mm manufactured before 08/1990, ensuring a secure mechanical connection between the disc and the tool.

Advantages

The locking nut is made of robust metal for long service life and resistance to wear. Its design prevents loosening under vibration during operation, providing stable clamping of grinding discs. Compatibility with a range of disc diameters (115–230 mm) makes it useful for different grinding and cutting tasks.

Suitable for

• Clamping 115–230 mm grinding discs produced before 08/1990
• Angle grinders requiring a compatible locking nut
• Machinery maintenance and automotive grinding/cutting operations

Key specifications

• Brand: Bosch
• Manufacturer part number (MPN): 1603340031
• EAN: 3165140033206
• Material: metal
• Finish: silver
• Compatible disc diameter: 115–230 mm (for discs manufactured before 08/1990)
• Product category: Power Tools Accessories

How to use

Fit the locking nut onto the spindle of a compatible angle grinder and place the grinding disc so that it seats correctly on the flange. Tighten the nut securely according to the angle grinder manufacturer’s instructions, using the appropriate spanner or tool supplied with the grinder. Check that the disc is centred and firmly clamped before operation.

Recommendations

Verify disc age and diameter before use: this locking nut is intended for grinding discs with diameters of 115–230 mm manufactured before 08/1990. Follow the angle grinder manufacturer’s safety instructions, wear appropriate protective equipment, and replace the locking nut if it shows significant wear or deformation.