Vlier B46 Threaded Ball Plunger 4-48 0.062 in Ball

Product Description

The VLIER B46 is a threaded ball plunger designed for applications requiring controlled end force in a compact, lightweight form factor. Featuring a 4-48 thread size, a 0.062-inch ball diameter, and a body length of 0.187 inches, this is one of the smallest and lightest spring-loaded positioning devices available in the VLIER lineup. The steel body and steel ball construction provide durability in repetitive-cycle applications. Initial end force is 0.13 pounds, with a final end force of 0.50 pounds, making it well suited for light-touch detent and positioning tasks in precision assemblies.

The B46 is used in precision mechanical assemblies where consistent, low-force ball detent action is required. Typical applications include indexing mechanisms, panel latching, drawer positioning, and fixture alignment in light-duty industrial and instrumentation settings. Its 4-48 threaded body allows installation into tapped holes in thin or small-profile components where larger plungers would not fit. The 0.020-inch maximum ball reach provides a controlled, shallow engagement depth appropriate for fine-tolerance positioning work.

Key Features

• 4-48 thread size for installation in small tapped holes
• 0.062-inch steel ball diameter for precise, low-force engagement
• 0.187-inch body length - compact profile for tight-clearance assemblies
• 0.13 lb initial end force and 0.50 lb final end force for controlled detent action
• Steel body and steel ball construction for durability in repetitive use
• No locking element - straightforward threaded installation
• Color code: Purple for quick field identification

Compatibility

Designed for use in precision assemblies, fixtures, and instrumentation requiring a 4-48 threaded ball plunger with controlled low end force.

Installation Notes

Installation requires a tapped 4-48 hole in the mating component. Use an appropriate hex key or driver sized for the plunger body to thread the B46 to the desired depth, adjusting ball reach as needed within the 0.020-inch maximum. Ensure the mating surface and tapped hole are clean and free of debris before installation to avoid binding. No power source or shutoff procedure is required for mechanical plunger installation.