Gibraltar SSWN10-4B-G Threaded Ball Plunger 1/4-20

Product Description

The GIBRALTAR SSWN10-4B-G is a threaded ball plunger with a 1/4-20 thread size, designed to provide controlled positioning, indexing, or light detent force in mechanical assemblies. The body is constructed from stainless steel for corrosion resistance, while the ball is nylon, making it suitable for applications where a softer contact point is needed to protect mating surfaces. With an initial end force of 3 pounds and a final end force of 7 pounds, this plunger delivers consistent, repeatable spring pressure. The ball diameter is 0.125 inches and maximum ball reach is 0.035 inches. Machinists, maintenance technicians, and assembly professionals install this type of hardware in jigs, fixtures, tooling, and mechanical positioning systems.

This ball plunger is suited for use in light-duty industrial and mechanical applications where precise detent or positioning action is required. Typical installations include fixture plates, slide mechanisms, drawer positioning, and machine tooling assemblies. The nylon ball minimizes surface marking on delicate or finished workpieces, making this plunger appropriate for use against aluminum, plastic, or coated metal surfaces. The 1/4-20 thread allows installation directly into standard tapped holes without special adapters.

Key Features

• 1/4-20 thread for direct installation into standard tapped holes
• Stainless steel body for corrosion resistance in demanding environments
• Nylon ball protects delicate or finished mating surfaces
• 0.125 inch ball diameter with 0.035 inch maximum ball reach
• 3 pound initial end force and 7 pound final end force for consistent detent action
• No locking element — installs and adjusts with standard tools

Compatibility

Designed as a standard 1/4-20 threaded ball plunger for use in any tapped hole accepting a 1/4-20 thread; compatible with fixture plates, tooling blocks, and mechanical assemblies requiring light detent or positioning force.

Installation Notes

Install using a hex wrench or screwdriver appropriate for the drive type into a clean, properly tapped 1/4-20 hole. Ensure the mating assembly is de-energized or stationary before servicing plunger components in powered equipment. Do not overtighten, as excessive torque can damage the nylon ball or deform the stainless steel body. Thread engagement and plunger depth should be verified before final assembly to confirm correct ball reach and detent force.