The Bosch 2603340018 is a genuine replacement locking nut designed to securely clamp grinding discs onto angle grinders manufactured before August 1990. This locking nut is specifically engineered for use with older-generation angle grinders, making it the correct choice when maintaining or restoring pre-1990 Bosch machines. It accommodates grinding discs ranging from 115mm to 230mm in diameter, covering the full spread of standard disc sizes used across a wide range of grinding and cutting tasks. With a 22.23mm bore, the nut fits the standard spindle thread found on compatible angle grinders of this era. For contractors and tradespeople running older equipment, sourcing the correct genuine part is essential for safe, reliable disc retention. Features and Benefits: • Genuine Bosch replacement locking nut for pre-August 1990 angle grinders • Clamps grinding discs from 115mm to 230mm diameter • 22.23mm bore for compatibility with standard locking nut angle grinder spindles Specifications: Bore Diameter: 22.23mm Compatible Disc Diameter: 115–230mm Net Weight: 0.027kg

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