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Export Control Classification Number (ECCN)
DFARS Specialty Metals
Knob-Grip Retractable Spring Plungers
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With the most versatile handle we offer, these fit in tight spaces while still giving you something to grab. A tug retracts the nose so you can make controlled adjustments. Use these spring plungers for everything from positioning workpieces to changing the height of tables and platforms.
Spring plungers are available with or without a threadlocker. Those with a threadlocker won't wiggle loose from vibration. Spring plungers without a threadlocker are easier to remove.
Steel Nose—The strongest, most wear-resistant noses, these won't deform from stress and vibration. Steel is best for dry environments, however, since moisture will cause it to rust.
Twist-to-Lock—Free up both hands to adjust your workpiece or switch out parts without the plunger springing back and getting in the way. Pull back the handle and twist to lock the nose in its retracted position.
Nose | Nose Force, lbf | Body | Handle | Nonlocking | Twist-to-Lock | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Thread Lg. | Extended Lg. | Dia. | Extended | Compressed | Material | Lg. | Material | Dia. | Each | Each | ||||
Steel Nose | |||||||||||||||
| 3/8"-24 | 0.67" | 0.197" | 0.197" | 1.6 | 3.6 | Black-Oxide Steel | 1.58" | Nylon | 13/16" | 8507A11 | 000000 | ——— | 0 | ||
| 3/8"-24 | 0.67" | 0.2" | 0.2" | 1.5 | 3.5 | Black-Oxide Steel | 1.81" | Nylon | 13/16" | ——— | 0 | 8480A11 | 000000 | ||
Ball-Nose Spring Plungers
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Align, position, and lock moving parts for most machining and assembly tasks. These spring plungers have a spring-loaded ball that compresses when a part presses against it, and then pops out into a notch or groove to hold the part in place. Unlike long-nose spring plungers, the ball rolls easily in and out of position, so they're a great fit for applications that require consistent, smooth movement, such as positioning parts in an assembly line and aligning fixtures and jigs when cutting or drilling.
Spring plungers are available with or without a threadlocker. Those with a threadlocker won't wiggle loose from vibration. Spring plungers without a threadlocker are easier to remove.
440C Stainless Steel Nose—The strongest, most wear-resistant stainless steel noses, these grind against hard metal surfaces without denting or scratching. However, they are not as corrosion resistant as 316 stainless steel.
Add-a-Handle Retractable Spring Plungers
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Customize these spring plungers with a handle (not included) that's the size, shape, texture, and color you want. Retractable spring plungers give you the control to position, align, and lock components as needed for your job.
Steel Nose—The strongest, most wear-resistant noses, these won't deform from stress and vibration. Steel is best for dry environments, however, since moisture will cause it to rust.
Nose | Nose Force, lbf | Body | Handle End Thread | Nonlocking | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Thread Lg. | Extended Lg. | Dia. | Extended | Compressed | Material | Lg. | Size | Lg. | Each | |||
Steel Nose | |||||||||||||
| 3/8"-24 | 0.67" | 0.197" | 0.197" | 1.6 | 3.6 | Black-Oxide Steel | 1.3" | M5 × 0.8 mm | 1/4" | 8507A14 | 000000 | ||
Push/Pull Toggle Clamps
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Pull Only—Steel External Plunger Thread Cushion Grip |
Hold workpieces from the side.
Pull-Only Clamp—Pull-only clamps secure when the plunger is fully retracted. The externally threaded plunger can be threaded into a fixture with a tapped hole.
Plunger | When Clamped | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Holding Cap., lb. | Lg. | Ht. | Travel | Shape | Dia. | Adjustment Lg. | Thread Location | Thread Size | Thread Lg. | Overall Ht. | Overall Lg. | Grip Style | Each | |||
Pull Only—Steel | ||||||||||||||||
| 2,000 | 2 7/8" | 1 1/2" | 2 1/2" | Round | 3/8" | 9/16" | External | 3/8"-24 | 2 7/8" | 1 7/8" | 11 3/8" | Cushion | 5138A12 | 000000 | ||
