Te-co 52207 Threaded Spring Plunger 3/8-16 Steel

Product Description

The TE-CO 52207 is a standard threaded spring plunger designed to provide controlled positioning and light detent force in tooling, fixtures, and machine assemblies. It features a 3/8-16 thread with a 1-1/8 inch thread length and a steel body with a zinc finish. The plunger delivers 2.8 pounds of initial end force and 7.2 pounds of final end force, making it suited for applications requiring repeatable, spring-loaded resistance. A locking element is incorporated into the body, allowing the plunger to be locked in position after installation without the need for additional hardware. Machinists, tool and die makers, and industrial maintenance technicians are the primary installers of this component.

This spring plunger is used in workholding fixtures, jigs, die sets, and general industrial machinery where a recessed, threadable positioning element is required. It fits into a standard 3/8-16 tapped hole and is appropriate for light-duty detent and positioning tasks in both production and maintenance environments. The compact plunger diameter of 0.186 inches and short projection of 0.187 inches make it well suited for low-clearance fixture designs. Sold individually with a minimum order quantity of 5 units.

Key Features

• 3/8-16 thread with 1-1/8 inch thread length for standard tapped-hole installation
• Steel nose and steel body with zinc finish for corrosion resistance in shop environments
• Integrated locking element allows the plunger to be secured in position after adjustment
• 2.8 pounds initial end force and 7.2 pounds final end force for light detent applications
• Maximum plunger diameter of 0.186 inches and projection of 0.187 inches for tight-clearance designs
• Internal hex drive (0.125 inches) for installation and adjustment with a hex key

Compatibility

Designed as an OEM-style drop-in fit for any application requiring a standard 3/8-16 threaded spring plunger with a 1-1/8 inch body length and locking element.

Installation Notes

Installation requires a properly tapped 3/8-16 through or blind hole. Use the 0.125 inch internal hex drive to thread the plunger in by hand or with a hex key to the desired depth. Engage the locking element to fix the plunger position before placing the assembly into service. Ensure the mating bore or detent recess is sized appropriately for the 0.186 inch plunger diameter to prevent binding or premature wear.