Steel Spindle Locknut Kit (Trick)

The Steel Spindle Locknut Kit (Trick) is a precision fastening assembly designed for DMI spindle systems, combining a keyed washer with integrated screws to deliver secure, repeatable clamping without slippage. Machinists, tool operators, and spindle technicians rely on trick-style locknut kits to eliminate runout and vibration at the spindle nose—critical for holding tight tolerances in milling, turning, and grinding operations. This complete kit eliminates the need to source components separately, making spindle maintenance and replacement faster and more reliable.

Manufactured in steel with a natural finish, the Steel Spindle Locknut Kit features a keyed washer that indexes positively against the spindle shoulder, preventing accidental rotation under load. The included screws are pre-selected to match the spindle's clocking requirements, ensuring proper alignment every time the kit is installed. The trick-style design—characterized by its keyed geometry and multi-point contact surface—provides superior holding power compared to standard smooth washers, making it the preferred choice for high-precision, high-speed applications where spindle integrity is non-negotiable.

This kit is engineered specifically for DMI spindle platforms and is ideal for shops upgrading equipment, performing routine spindle service, or replacing worn fasteners that have lost clamping force. Compact and lightweight at just 0.18 lbs, it fits easily in tool kits and drawers for quick access during spindle changeouts. Installation is straightforward: position the keyed washer, align the screw holes, and torque to specification to restore spindle runout and concentricity. Whether you're running a production job or maintaining a precision grinding center, this complete kit ensures your spindle performs at peak accuracy.