Vlier SSLM5 Knob Handle Spring Plunger M5x0.8

Product Description

The VLIER SSLM5 is a non-locking, knob-style spring plunger designed for indexing, positioning, and light-duty retention applications in mechanical assemblies. It features an M5x0.8 threaded body with a 0.394-inch thread length and a knurled knob head for hand-adjustment without tools. The spring delivers an initial end force of 0.5 pounds and a final end force of 3 pounds, making it suitable for applications that require repeatable, controlled engagement. The maximum plunger diameter is 0.0984 inches with a plunger projection of 0.078 inches. Machinists, toolmakers, and mechanical assembly technicians typically install this type of component in fixtures, jigs, and precision equipment.

The SSLM5 is suited for use in light industrial, tooling, and precision mechanical applications where hand-adjustable spring plungers are required. The knurled knob allows for finger-tight installation and adjustment in confined or tool-restricted locations. This plunger is commonly installed in machine fixtures, assembly jigs, alignment guides, and positioning mechanisms where a non-locking, low-force spring detent is required.

Key Features

• M5x0.8 thread with 0.394-inch thread length for standard metric tapped holes
• Non-locking plunger design allows free retraction without thread engagement
• Knurled knob head enables hand-adjustment and installation without tools
• Spring force range of 0.5 pounds initial to 3 pounds final end force
• Compact body length of 0.47 inches suits tight-clearance assemblies
• Plunger diameter tolerance of +0.000 / -0.001 inches for consistent fit

Compatibility

Designed as a direct-fit spring plunger for standard M5x0.8 threaded mounting locations in mechanical fixtures, tooling plates, and precision assembly equipment.

Installation Notes

Installation is performed by threading the SSLM5 into a pre-tapped M5x0.8 hole by hand using the knurled knob. Ensure the mating thread is clean and free of debris before installation. No power tools are required; avoid over-torquing, which can damage the knob or distort the thread. Verify plunger movement is free and unobstructed after installation before placing the assembly into service.