JG Spring Plungers

Jergens Spring Plungers | Precision Spring-Loaded Position Control Solutions

JG spring plungers—also called ball plungers or detent plungers—are spring-loaded components used to create a detent, indexing point, or light holding force in fixtures and mechanical assemblies (application dependent). They’re commonly used for positioning adjustable parts, providing “click-stop” engagement, and maintaining repeatable alignment in guards, covers, and modular workholding setups. Because the feel and retention depend on force and tip style, spring plungers are typically selected by specification rather than by general description.

Delrin Tip / Steel Spring Plungers

Jergens Spring Plungers, unlike conventional spring plungers, are machined in one piece. The spring is assembled from the top so that there is no need for a set screw. Our Spring Plungers do not have a set screw that can loosen or separate from the plunger body. The advantage is no lost springs and no need for “easy-out” tools. When adjusting Solid Drive, you can be sure the plunger body is turning and not a set screw.

Stainless Steel Spring Plungers

Jergens Spring Plungers, unlike conventional spring plungers, are machined in one piece. The spring is assembled from the top so that there is no need for a set screw. Our Spring Plungers do not have a set screw that can loosen or separate from the plunger body. The advantage is no lost springs and no need for “easy-out” tools. When adjusting Solid Drive, you can be sure the plunger body is turning and not a set screw.

Delrin Tip / Stainless Steel Spring Plungers

Jergens Spring Plungers, unlike conventional spring plungers, are machined in one piece. The spring is assembled from the top so that there is no need for a set screw. Our Spring Plungers do not have a set screw that can loosen or separate from the plunger body. The advantage is no lost springs and no need for “easy-out” tools. When adjusting Solid Drive, you can be sure the plunger body is turning and not a set screw.

Steel Spring Plungers

Jergens Solid Drive Plunger is one integral piece of steel: hex drive, plunger, and body. No set screw to separate from plunger body, no lost springs to retrieve, no need for “easy-out” tools. Best of all, when adjusting Solid Drive, you can be sure the spring plunger is turning and not just a set screw.

Jergens Spring Plungers | Precision Spring-Loaded Position Control Solutions

JG spring plungers—also called ball plungers or detent plungers—are spring-loaded components used to create a detent, indexing point, or light holding force in fixtures and mechanical assemblies (application dependent). They’re commonly used for positioning adjustable parts, providing “click-stop” engagement, and maintaining repeatable alignment in guards, covers, and modular workholding setups. Because the feel and retention depend on force and tip style, spring plungers are typically selected by specification rather than by general description.

Delrin Tip / Steel Spring Plungers

Jergens Spring Plungers, unlike conventional spring plungers, are machined in one piece. The spring is assembled from the top so that there is no need for a set screw. Our Spring Plungers do not have a set screw that can loosen or separate from the plunger body. The advantage is no lost springs and no need for “easy-out” tools. When adjusting Solid Drive, you can be sure the plunger body is turning and not a set screw.

Stainless Steel Spring Plungers

Jergens Spring Plungers, unlike conventional spring plungers, are machined in one piece. The spring is assembled from the top so that there is no need for a set screw. Our Spring Plungers do not have a set screw that can loosen or separate from the plunger body. The advantage is no lost springs and no need for “easy-out” tools. When adjusting Solid Drive, you can be sure the plunger body is turning and not a set screw.

Delrin Tip / Stainless Steel Spring Plungers

Jergens Spring Plungers, unlike conventional spring plungers, are machined in one piece. The spring is assembled from the top so that there is no need for a set screw. Our Spring Plungers do not have a set screw that can loosen or separate from the plunger body. The advantage is no lost springs and no need for “easy-out” tools. When adjusting Solid Drive, you can be sure the plunger body is turning and not a set screw.

Steel Spring Plungers

Jergens Solid Drive Plunger is one integral piece of steel: hex drive, plunger, and body. No set screw to separate from plunger body, no lost springs to retrieve, no need for “easy-out” tools. Best of all, when adjusting Solid Drive, you can be sure the spring plunger is turning and not just a set screw.

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JERGENS SPRING PLUNGER, 1/2-13, HF, DELRIN TIP, SOLID DRIVE - 30428

JERGENS SPRING PLUNGER, 1/2-13, HF, DELRIN TIP, SOLID DRIVE - 30428

SKU: JG-30428
MPN: 30428

JERGENS SPRING PLUNGER, 1/2-13, LF, DELRIN TIP, SOLID DRIVE - 30828

JERGENS SPRING PLUNGER, 1/2-13, LF, DELRIN TIP, SOLID DRIVE - 30828

SKU: JG-30828
MPN: 30828

JERGENS SPRING PLUNGER, 1/4-20, HF, DELRIN TIP, SOLID DRIVE - 30424

JERGENS SPRING PLUNGER, 1/4-20, HF, DELRIN TIP, SOLID DRIVE - 30424

SKU: JG-30424
MPN: 30424

JERGENS SPRING PLUNGER, 1/4-20, LF, DELRIN TIP, SOLID DRIVE - 30824

JERGENS SPRING PLUNGER, 1/4-20, LF, DELRIN TIP, SOLID DRIVE - 30824

SKU: JG-30824
MPN: 30824

JERGENS SPRING PLUNGER, 1/4-28, HF, DELRIN TIP, SOLID DRIVE - 30425

JERGENS SPRING PLUNGER, 1/4-28, HF, DELRIN TIP, SOLID DRIVE - 30425

SKU: JG-30425
MPN: 30425

JERGENS SPRING PLUNGER, 1/4-28, LF, DELRIN TIP, SOLID DRIVE - 30825

JERGENS SPRING PLUNGER, 1/4-28, LF, DELRIN TIP, SOLID DRIVE - 30825

SKU: JG-30825
MPN: 30825

JERGENS SPRING PLUNGER, 10-32, HF, DELRIN TIP, SOLID DRIVE - 30423

JERGENS SPRING PLUNGER, 10-32, HF, DELRIN TIP, SOLID DRIVE - 30423

SKU: JG-30423
MPN: 30423

JERGENS SPRING PLUNGER, 10-32, LF, DELRIN TIP, SOLID DRIVE - 30823

JERGENS SPRING PLUNGER, 10-32, LF, DELRIN TIP, SOLID DRIVE - 30823

SKU: JG-30823
MPN: 30823

JERGENS SPRING PLUNGER, 3/8-16, HF, DELRIN TIP, SOLID DRIVE - 30427

JERGENS SPRING PLUNGER, 3/8-16, HF, DELRIN TIP, SOLID DRIVE - 30427

SKU: JG-30427
MPN: 30427

JERGENS SPRING PLUNGER, 3/8-16, LF, DELRIN TIP, SOLID DRIVE - 30827

JERGENS SPRING PLUNGER, 3/8-16, LF, DELRIN TIP, SOLID DRIVE - 30827

SKU: JG-30827
MPN: 30827

JERGENS SPRING PLUNGER, 5/16-18, HF, DELRIN TIP, SOLID DRIVE - 30426

JERGENS SPRING PLUNGER, 5/16-18, HF, DELRIN TIP, SOLID DRIVE - 30426

SKU: JG-30426
MPN: 30426

JERGENS SPRING PLUNGER, 5/16-18, LF, DELRIN TIP, SOLID DRIVE - 30826

JERGENS SPRING PLUNGER, 5/16-18, LF, DELRIN TIP, SOLID DRIVE - 30826

SKU: JG-30826
MPN: 30826

JERGENS SPRING PLUNGER, 5/8-11, HF, DELRIN TIP, SOLID DRIVE - 30429

JERGENS SPRING PLUNGER, 5/8-11, HF, DELRIN TIP, SOLID DRIVE - 30429

SKU: JG-30429
MPN: 30429

JERGENS SPRING PLUNGER, 5/8-11, LF, DELRIN TIP, SOLID DRIVE - 30829

JERGENS SPRING PLUNGER, 5/8-11, LF, DELRIN TIP, SOLID DRIVE - 30829

SKU: JG-30829
MPN: 30829

JERGENS SPRING PLUNGER, 6-32, HF, DELRIN TIP, SOLID DRIVE - 30421

JERGENS SPRING PLUNGER, 6-32, HF, DELRIN TIP, SOLID DRIVE - 30421

SKU: JG-30421
MPN: 30421

JERGENS SPRING PLUNGER, 6-32, LF, DELRIN TIP, SOLID DRIVE - 30821

JERGENS SPRING PLUNGER, 6-32, LF, DELRIN TIP, SOLID DRIVE - 30821

SKU: JG-30821
MPN: 30821

JERGENS SPRING PLUNGER, 8-32, HF, DELRIN TIP, SOLID DRIVE - 30422

JERGENS SPRING PLUNGER, 8-32, HF, DELRIN TIP, SOLID DRIVE - 30422

SKU: JG-30422
MPN: 30422

JERGENS SPRING PLUNGER, 8-32, LF, DELRIN TIP, SOLID DRIVE - 30822

JERGENS SPRING PLUNGER, 8-32, LF, DELRIN TIP, SOLID DRIVE - 30822

SKU: JG-30822
MPN: 30822