Vlier SSM60 Threaded Spring Plunger 1/2-13 Stainless Steel

Product Description

The VLIER SSM60 is a stubby-nose threaded spring plunger designed to provide controlled positioning, indexing, and light-duty retention in machined assemblies, fixtures, and tooling applications. The plunger features a 1/2-13 thread with a 0.75 inch thread length and a stainless steel body and nose, making it suitable for corrosive or wash-down environments. It delivers 5 pounds of initial end force and 28 pounds of final end force, giving technicians and machinists a defined load range for repeatable positioning. The maximum plunger diameter is 0.248 inches and the plunger projection is 0.151 inches. This part is installed by machinists, toolmakers, and maintenance technicians working with precision fixtures and mechanical assemblies.

The SSM60 fits into tapped holes in machine components, jigs, fixtures, workholding devices, and industrial equipment where a low-profile, threaded retention element is needed. The stubby plunger geometry is suited for applications where clearance is limited and a shorter projection is required. Stainless steel construction supports use in environments where carbon steel components would corrode, including food processing equipment, medical device fixtures, and wet industrial settings.

Key Features

• 1/2-13 threaded body with 0.75 inch thread length for direct installation into tapped holes
• Stubby plunger nose with 0.151 inch projection for low-clearance applications
• Stainless steel body and nose material for corrosion resistance
• 5 pound initial end force and 28 pound final end force for defined load-range positioning
• Maximum plunger diameter of 0.248 inches
• No locking element, allowing straightforward installation and removal

Compatibility

Designed as a direct-install threaded spring plunger for any application requiring a 1/2-13 tapped hole and a stubby-nose low-projection plunger geometry in stainless steel.

Installation Notes

Installation requires a properly tapped 1/2-13 hole in the mating component. Use standard hex tooling appropriate for the body drive feature and torque to the fixture manufacturer's specification for the material being threaded into. Ensure the bore and thread are clean and free of chips or debris before installation. Depressurize or de-energize any assembly before servicing spring plungers in active fixtures or tooling.