Sanitary Twist-to-Lock Knob-Style Retractable Spring Plungers




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.
Thread | Nose | Nose Force, lbs. | Handle | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Lg., mm | Extended Lg., mm | Dia., mm | Extended | Compressed | Dia., mm | Texture | Includes | Locking Type | Body Lg., mm | Each | |
316 Stainless Steel Body and 316 Stainless Steel Nose | |||||||||||||
M12 | 1.5 | 12 | 6 | 6 | 4.5 | 8.1 | 35 | Smooth | __ | Without Thread Locker | 62 | 000000000 | 0000000 |
M14 | 1.5 | 12 | 6 | 6 | 4.5 | 8.1 | 35 | Smooth | Sealing Nut | Without Thread Locker | 72 | 000000000 | 000000 |
M14 | 1.5 | 12 | 8 | 8 | 5 | 7.2 | 35 | Smooth | Sealing Nut | Without Thread Locker | 77 | 000000000 | 000000 |
M16 | 1.5 | 12 | 8 | 8 | 5 | 7.2 | 35 | Smooth | __ | Without Thread Locker | 66 | 000000000 | 000000 |
Replacement Seal | 000000000 | Each | 00000 |
Rolling Pins

These large, durable rolling pins stand up to frequent use.
Lg. | Barrel Lg. | Barrel Dia. | Material | Each | |
30 1/2" | 18" | 2 3/4" | Wood | 0000000 | 000000 |
Stainless Steel Clips

Hold lightweight objects, secure covers, and seal bags in sanitary and corrosive environments. Made of 430 stainless steel, these clips resist sprays from nearby washdowns and show up on metal detectors and X-rays, which helps you prevent contaminated products from leaving your plant. To open them, squeeze their handles; otherwise, their springs keep them closed.
Clips with serrated jaws grip items more securely than clips with smooth jaws.