Gibraltar MSKNL-4-PT-G Knurled Knob Spring Plunger M12x1.75

Product Description

The GIBRALTAR MSKNL-4-PT-G is a non-locking spring plunger with a knurled knob handle, designed for indexing, positioning, and light-duty locking applications in industrial and mechanical assemblies. Built from stainless steel, it features an M12x1.75 threaded body with a 0.905-inch thread length and a 0.236-inch maximum plunger diameter. The spring delivers 1 pound of initial end force and 10 pounds of final end force, making it suitable for applications requiring controlled, repeatable plunger engagement. The body measures 1.14 inches in length, and the plunger projects 0.236 inches beyond the body. Machinists, toolmakers, and maintenance technicians commonly install this type of component in jigs, fixtures, and machine tool assemblies.

This spring plunger is used in industrial machine components, fixtures, and precision assemblies where repeatable positioning or detent action is required. The knurled knob design allows hand adjustment without tools, making it practical for setups that require frequent repositioning. The stainless steel construction suits environments where corrosion resistance is a factor, including washdown or humid production areas. It is sold individually and is appropriate for both light manufacturing and maintenance-repair-operations (MRO) applications.

Key Features

• M12x1.75 thread size with 0.905-inch thread length for standard metric threaded housings
• Knurled knob handle allows tool-free hand adjustment and positioning
• Non-locking plunger type with spring-loaded end force ranging from 1 pound initial to 10 pounds final
• Stainless steel construction provides corrosion resistance for demanding environments
• Compact body length of 1.14 inches suits space-constrained assemblies
• Locking element included for secure thread retention in the housing

Compatibility

Designed as an OEM-style replacement or direct-install spring plunger for industrial fixtures, jigs, and machine components using M12x1.75 threaded housings.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using standard metric threading practices. Ensure the receiving housing thread is clean and free of debris before threading the plunger body into place. Do not overtighten the knob body, as this can affect plunger travel and spring performance. Disengage or de-energize any associated machinery before servicing or replacing spring plunger components in active assemblies.