Jergens 26774 Threaded Spring Plunger M10 X 1.5

Product Description

The JERGENS 26774 is a short-type threaded spring plunger designed to locate, position, or index components in tooling, fixtures, and machine assemblies. The steel body threads into an M10 x 1.5 tapped hole with a 17.50 mm (0.689 inches) thread length. The plunger nose measures 4.72 mm (0.186 inches) in diameter and extends 5.50 mm (0.217 inches) at full projection. A locking element is built into the body, allowing the installed position to be fixed and preventing the plunger from backing out under vibration or repeated loading. Initial end force is 0.46 kg (1.01 lbs) and final end force is 5.44 kg (11.99 lbs).

The 26774 is used in precision workholding, jigs, dies, and automation fixtures where a repeatable spring-loaded detent or indexing point is required. The short plunger length suits space-constrained assemblies. The Delrin and steel nose combination provides a wear-resistant contact surface that limits marring on positioned workpieces. Typical installers include tool and die makers, machine builders, and fixture technicians working in production and maintenance environments.

Key Features

• M10 x 1.5 thread size with 17.50 mm (0.689 inches) thread length for standard tapped-hole fitment
• Locking element prevents plunger from rotating or backing out after installation
• Short plunger body suits compact or shallow fixture applications
• Dual-material nose (Delrin and steel) reduces workpiece marring at contact point
• Black finish steel body for corrosion resistance in typical shop environments
• Initial end force 0.46 kg and final end force 5.44 kg for controlled spring-load indexing

Compatibility

Designed as an OEM-style threaded spring plunger for M10 x 1.5 tapped holes in tooling plates, jig bodies, fixture bases, and machine components requiring spring-loaded detent or positioning function.

Installation Notes

Install using a hex wrench or spanner suited to the body drive feature; ensure the mating tapped hole is clean and correctly sized before threading in. Engage the locking element after the plunger is torqued to the desired position to prevent movement in service. Power down or de-energize any associated machine or fixture before installing or servicing the plunger. Inspect the nose and spring for wear periodically, particularly in high-cycle applications.