Lock the nose into the retracted position by pulling the knob and rotating it 90°. These spring plungers have a long nose that provides a large bearing surface to handle side loads.

Knurled knob spring plungers provide a slip-resistant surface for controlled adjustment.

Smooth knob spring plungers with a hex nut can be held in place with the nut after threading to your desired depth.

Steel is strong and wear resistant. Zinc-plated steel bodies resist corrosion in wet environments. Black-oxide steel bodies resist corrosion in dry environments.

316 stainless steel is more corrosion resistant than 18-8 stainless steel and can be used in saltwater environments.

18-8 stainless steel is chemical resistant.

Brass is corrosion resistant in wet environments; brass noses are soft to minimize marring.

Plastic is chemical resistant and lightweight; acetal noses are extra soft to minimize marring soft surfaces such as aluminum.

Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.

Spring plungers with thread locker have a locking patch that adds friction to resist loosening.

Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.

For technical drawings and 3-D models, click on a part number.

Quickly align, join, or hold machine components in place in food, pharmaceutical, and other sanitary environments. Pulling the plunger knob and twisting it 90° will lock the nose into its retracted position. All of these plungers have a long nose that offers a large bearing surface to handle side loads. They’re often used for maintenance jobs.

Made of stainless steel, these plungers won’t corrode from frequent washdowns with harsh cleaners and sanitizers. All are self-draining with rounded edges and polished surfaces, so there are no crevices for bacteria to grow, reducing the chance of a foodborne illness. Seals block out water and keep contaminants from getting trapped in threads or grooves. They’re also bright blue, so you can easily spot broken pieces that fall into your line. The seals are FDA compliant for direct contact with food, but the lubricant is rated for incidental contact.

Spring plungers with a sealing nut can be held in place with the nut after threading them to your desired depth. The nut completely covers the threads and has two seals to block out water and other contaminants.

Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.

For technical drawings and 3-D models, click on a part number.

Install by hand or with a hex key in low-clearance applications. Retract the nose by pulling the knob. These spring plungers have a long nose that provides a large bearing surface to handle side loads.

Steel is strong and wear resistant.

Stainless steel is chemical resistant and may be mildly magnetic.

Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.

Spring plungers with thread locker have a nylon locking patch bonded to the threads that adds friction to resist loosening.

Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.

For technical drawings and 3-D models, click on a part number.

Insert the nose into a panel; then thread on the nut and tighten using an installation wrench (sold separately). These spring plungers have a spring-loaded pin that retracts to release sliding parts. Pull the knob to retract the nose. Use them as a locator or hinge pin on removable doors. The body is zinc-plated steel to resist corrosion in wet environments.

For technical drawings and 3-D models, click on a part number.