Vlier SLM6 Non-locking Knob Plunger M6x1.0 Knurled

Product Description

The VLIER SLM6 is a non-locking spring plunger with a knurled knob handle, designed for positioning, indexing, and light-duty holding applications in industrial and mechanical assemblies. The plunger threads into a tapped M6x1.0 hole and delivers an initial end force of 1 pound, increasing to a final end force of 4 pounds as the plunger compresses. The body length is 0.630 inches, with a thread length of 0.512 inches and a maximum plunger diameter of 0.118 inches. Machinists, toolmakers, and maintenance technicians typically install this style of plunger in jigs, fixtures, and machine tool components where repeatable spring-loaded positioning is required.

The SLM6 suits residential and light industrial machine tool fixtures, assembly jigs, and equipment panels where a manually adjustable, non-locking spring plunger is needed. The knurled knob allows hand-tightening and adjustment without tooling, making it well suited for applications that require frequent repositioning or operator adjustment. The 0.118-inch plunger projection provides controlled, low-profile engagement with mating detents or surfaces.

Key Features

• Non-locking design allows free plunger travel without a secondary locking element
• Knurled knob head enables tool-free hand adjustment and installation
• M6x1.0 thread fits standard metric tapped holes in fixtures and machine components
• Spring end force range of 1 pound initial to 4 pounds final provides consistent, repeatable positioning force
• Compact body length of 0.630 inches suits space-constrained assemblies
• Plunger diameter tolerance of +0.000 / -0.001 inch ensures precise fit in mating bores

Compatibility

Designed as an OEM-style spring plunger for use in any assembly or fixture accepting an M6x1.0 threaded spring plunger with a non-locking, knob-handle configuration.

Installation Notes

Installation is performed by threading the SLM6 into a pre-tapped M6x1.0 through-hole or blind hole; the knurled knob allows hand-tightening in most applications. De-energize or lock out any equipment before servicing assemblies that contain spring plungers. Verify that the mating hole depth and thread engagement meet the minimum thread length of 0.512 inches to ensure secure retention. Do not overtighten, as excessive torque can damage the plunger body or spring mechanism.