Gibraltar MSDKL50-G Locking Knob Handle Plunger M12x1.75

Product Description

The GIBRALTAR MSDKL50-G is a locking knob handle plunger designed for positioning, indexing, and workholding applications in industrial and trade settings. The unit features an M12x1.75 thread with a 25mm thread length, a stainless steel body with a black finish, and a Delrin knob for hand operation. The plunger locks in the retracted position, preventing unintended extension during setup or adjustment. Initial end force measures 0.56 pounds and final end force measures 1.8 pounds, providing consistent, repeatable engagement. Machinists, fabricators, and maintenance technicians typically install and service this type of hardware.

This plunger fits standard M12x1.75 threaded bores found in jigs, fixtures, machine frames, and tooling plates. The locking mechanism allows the plunger to be held retracted while components are loaded or repositioned, then released to engage. The Delrin knob allows tool-free hand operation in production environments. With a body length of 1.2 inches and a plunger projection of 0.236 inches, the MSDKL50-G suits compact fixture designs where space is limited. It is appropriate for both light-duty workholding and general indexing use in shop and maintenance environments.

Key Features

• Locking plunger holds retracted position for hands-free component loading
• M12x1.75 thread size with 25mm thread length for standard metric bore fitment
• Stainless steel body with black finish for corrosion resistance and clean appearance
• Delrin knob allows tool-free hand operation
• Initial end force of 0.56 pounds and final end force of 1.8 pounds for consistent engagement
• Compact 1.2-inch body length suits space-constrained fixture and tooling designs

Compatibility

Designed for use in standard M12x1.75 threaded bores in industrial jigs, fixtures, tooling plates, and machine frames requiring a locking plunger with a Delrin knob handle.

Installation Notes

Installation is performed by threading the plunger body into a prepared M12x1.75 tapped hole by hand or with a wrench on the 0.472-inch hex flat. Ensure the mating bore is clean and free of debris before threading in. Power down or de-energize any machine before servicing plungers installed in live tooling or indexing mechanisms. Do not exceed the rated end force to avoid premature wear on the plunger tip or mating surfaces.