Knob-Style Retractable Spring Plungers
![]() Knurled Knob | ![]() With Thread Locker |
![]() Without Thread Locker |
Retract the nose by pulling the knob. 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.
Steel is strong and wear resistant. Zinc-plated steel bodies resist corrosion in wet environments.
18-8 stainless steel is chemical resistant.
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.
Thread | Nose | Handle | Nose Force, lbs. | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Lg., mm | Body Lg., mm | Extended Lg., mm | Dia., mm | Dia., mm | Material | Texture | Extended | Compressed | Choose a Locking Type | Each | |
Zinc-Plated Steel Body and Steel Nose | |||||||||||||
M5 | 0.8 | 10 | 16 | 2 | 2.5 | 9 | Steel | Knurled | 0.5 | 3 | 00000000 | 000000 | |
18-8 Stainless Steel Body and 18-8 Stainless Steel Nose | |||||||||||||
M5 | 0.8 | 10 | 16 | 2 | 2.5 | 9 | 18-8 Stainless Steel | Knurled | 0.5 | 3 | 00000000 | 00000 |
Twist-to-Lock Knob-Style Retractable Spring Plungers
![]() Knurled Knob | ![]() Without Thread Locker |
![]() With Thread Locker |
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.
Steel is strong and wear resistant. Zinc-plated steel bodies resist corrosion in wet environments.
18-8 stainless steel is chemical resistant.
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.
Thread | Nose | Nose Force, lbs. | Handle | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Lg., mm | Body Lg., mm | Extended Lg., mm | Dia., mm | Extended | Compressed | Dia., mm | Texture | Choose a Locking Type | Each | |
Zinc-Plated Steel Body and Steel Nose | ||||||||||||
M5 | 0.8 | 10 | 16.5 | 2 | 3 | 0.5 | 3 | 10 | Knurled | 00000000 | 000000 | |
18-8 Stainless Steel Body and 18-8 Stainless Steel Nose | ||||||||||||
M5 | 0.8 | 10 | 16.5 | 2 | 3 | 0.5 | 3 | 10 | Knurled | 00000000 | 00000 |
Slotted Ball-Nose Spring Plungers


Install these spring plungers with a screwdriver—they're slotted on one or both ends. The ball nose rolls to minimize wear and allow parts to move in and out of position.
Steel is strong and wear resistant.
440C stainless steel is hard, wear resistant, and mildly chemical resistant.
18-8 stainless steel is chemical resistant.
Plastic is chemical resistant and lightweight; nylon 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 element 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.

Thread | Nose | Nose Force, lbs. | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Body Lg., mm | Extended Lg., mm | Dia., mm | Min. Temp., °F | Max. Temp., °F | Extended | Compressed | Choose a Locking Type | Each | |
Steel Body and 440C Stainless Steel Nose | |||||||||||
M5 | 0.8 | 12 | 0.9 | 3.5 | __ | __ | 1.8 | 3.2 | 0000000 | 00000 | |
M5 | 0.8 | 12 | 0.9 | 3.5 | __ | __ | 3.4 | 5 | 0000000 | 0000 | |
Steel Body and Nylon Plastic Nose | |||||||||||
M5 | 0.8 | 12 | 0.9 | 3.5 | -20° | 180° | 1.8 | 3.2 | 0000000 | 0000 | |
M5 | 0.8 | 12 | 0.9 | 3.5 | -20° | 180° | 3.4 | 5 | 0000000 | 0000 | |
18-8 Stainless Steel Body and 440C Stainless Steel Nose | |||||||||||
M5 | 0.8 | 12 | 0.9 | 3.5 | __ | __ | 1.8 | 3.2 | 00000000 | 0000 | |
M5 | 0.8 | 12 | 0.9 | 3.5 | __ | __ | 3.4 | 5 | 00000000 | 0000 | |
18-8 Stainless Steel Body and Nylon Plastic Nose | |||||||||||
M5 | 0.8 | 12 | 0.9 | 3.5 | -20° | 180° | 1.8 | 3.2 | 0000000 | 0000 | |
M5 | 0.8 | 12 | 0.9 | 3.5 | -20° | 180° | 3.4 | 5 | 0000000 | 0000 |
Long-Nose Spring Plungers


Install from the nose end without depressing the nose using a driver (sold separately). With a nose that is longer than a ball-nose, these provide a large bearing surface to handle side loads.
Steel is strong and wear resistant. Black-oxide steel bodies resist corrosion in dry environments.
18-8 stainless steel is chemical resistant.
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 element 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.

Spring Plungers | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Thread | Nose | Nose Force, lbs. | Drivers | ||||||||
Size | Thread Pitch | Extended Lg. | Diameter | Temperature Range | Extended | Compressed | Choose a Locking Type | Each | Each | ||
Black-Oxide Steel Body and Acetal Plastic Nose | |||||||||||
M5 | 0.8 mm | 2.3mm | 2.4mm | -20 to 210° F | 1.3 | 4.3 | 0000000 | 00000 | 0000000 | 00000 | |
18-8 Stainless Steel Body and Acetal Plastic Nose | |||||||||||
M5 | 0.8 mm | 2.3mm | 2.4mm | -20 to 210° F | 1.3 | 4.3 | 0000000 | 00000 | 0000000 | 0000 |
Hex-Drive Long-Nose Spring Plungers


Install with a hex key for more torque than slotted long-nose spring plungers. These spring plungers have a nose that is longer than ball-nose spring plungers to provide a large bearing surface and handle side loads.
Steel is strong and wear resistant. Black-oxide steel bodies resist corrosion in dry environments.
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 nylon locking element 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.


Thread | Nose | Nose Force, lbs. | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Body Lg., mm | Extended Lg., mm | Dia., mm | Temp. Range, °F | Extended | Compressed | Drive Size, mm | Choose a Locking Type | Each | |
Black-Oxide Steel Body and Acetal Plastic Nose | |||||||||||
M5 | 0.8 | 19.1 | 3.2 | 2.3 | -40° to 190° | 2.9 | 11.1 | 2.5 | 0000000 | 00000 |
Drivers for Spring Plungers

Install spring plungers from the nose end without depressing the nose.
For Thread Size | For Spring Plunger Nose Type | Each | |
Steel | |||
---|---|---|---|
10-32, M5 | Ball Nose, Long Nose | 0000000 | 00000 |
Vacuum Cup Levelers


Also known as spring plungers, these fittings are spring-loaded to accommodate items with variable heights. Tighten the mounting nuts to secure the leveler in a panel or bracket.
For technical drawings and 3-D models, click on a part number.
Body | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Stroke Lg. | Overall Lg. | Lg. | Dia. | For Max. Panel Thick. | Thread Size | Thread Type | Gender | Includes | Material | Wt. | Each | |
1/4" | 1 5/8" | 23/32" | 3/8" | 0.5" | M5 | Metric | Female | Two 1/8 BSPP Male Adapters, Two Washers | Steel | 0.04 lbs. / 0.02 kg | 000000 | 000000 |
3/8" | 1 7/8" | 7/8" | 3/8" | 0.7" | M5 | Metric | Female | Two 1/8 BSPP Male Adapters, Two Washers | Steel | 0.04 lbs. / 0.02 kg | 000000 | 00000 |
3/8" | 2" | 29/32" | 5/16" | 0.7" | M5 | Metric | Male × Female | __ | Nickel-Plated Brass | 0.05 lbs. / 0.02 kg | 0000000 | 00000 |
3/4" | 2 7/8" | 1 9/16" | 3/8" | 1.4" | M5 | Metric | Female | Two 1/8 BSPP Male Adapters, Two Washers | Steel | 0.07 lbs. / 0.03 kg | 000000 | 00000 |
7/8" | 3 1/2" | 2" | 5/16" | 1.8" | M5 | Metric | Male × Female | __ | Nickel-Plated Brass | 0.08 lbs. / 0.04 kg | 000000 | 00000 |
1 1/2" | 4 5/8" | 2 17/32" | 3/8" | 2.4" | M5 | Metric | Female | Two 1/8 BSPP Male Adapters, Two Washers | Steel | 0.11 lbs. / 0.05 kg | 000000 | 00000 |
Vacuum Cups




Use cups with a vacuum system to grip, lift, and move flat materials, such as sheet metal and plastic.
Buna-N rubber cups are abrasion resistant and have better oil resistance than vinyl cups.
Warning: Never use to lift people or items over people.
For technical drawings and 3-D models, click on a part number.
Vacuum Cups | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Temp., °F | Replacement Cups | |||||||||||
Cap. @ Vacuum | Cup Dia. | Cup Ht. | Thread Size | Thread Type | For Use With | Min. | Max. | O'all Ht. | Each | Each | ||
Female | ||||||||||||
For Smooth Surfaces | ||||||||||||
Buna-N Rubber | ||||||||||||
0.17 lbs. @ 24 in. of Hg | 0.20" | 0.26" | M5 | Metric | Sheet Metal, Plastic | -30° | 210° | 0.65" | 00000000 | 000000 | 00000000 | 00000 |
0.27 lbs. @ 24 in. of Hg | 0.23" | 0.26" | M5 | Metric | Sheet Metal, Plastic | -30° | 210° | 0.65" | 00000000 | 0000 | 00000000 | 0000 |
0.51 lbs. @ 24 in. of Hg | 0.31" | 0.28" | M5 | Metric | Sheet Metal, Plastic | -30° | 210° | 0.67" | 00000000 | 00000 | 00000000 | 0000 |
Male | ||||||||||||
For Smooth Surfaces | ||||||||||||
Buna-N Rubber | ||||||||||||
0.17 lbs. @ 24 in. of Hg | 0.20" | 0.26" | M5 | Metric | Sheet Metal, Plastic | -30° | 210° | 0.63" | 00000000 | 00000 | 00000000 | 0000 |
0.27 lbs. @ 24 in. of Hg | 0.23" | 0.26" | M5 | Metric | Sheet Metal, Plastic | -30° | 210° | 0.63" | 00000000 | 0000 | 00000000 | 0000 |
0.51 lbs. @ 24 in. of Hg | 0.31" | 0.28" | M5 | Metric | Sheet Metal, Plastic | -30° | 210° | 0.65" | 00000000 | 00000 | 00000000 | 0000 |
Height-Adjusting Vacuum Cups

with Female
Connection

with Female
Connection

with Male
Connection


The bellows on these cups handle items with varied heights and angles better than flat cups. Use them with a vacuum system to grip, lift, and move items.
Cups with multiple bellows compress more than cups with single bellows to better lift objects with differing heights and orientations.
Polyurethane rubber cups last longer than Buna-N rubber cups.
Cups with a filter prevent material from entering the vacuum system.
Warning: Never use to lift people or items over people.
For technical drawings and 3-D models, click on a part number.
Vacuum Cups | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Temp., °F | Replacement Cups | |||||||||||
Cap. @ Vacuum | Cup Dia. | Cup Ht. | Thread Size | Thread Type | For Use With | Min. | Max. | O'all Ht. | Each | Each | ||
Female | ||||||||||||
Single Bellows—For Smooth and Textured Surfaces | ||||||||||||
Polyurethane Rubber | ||||||||||||
4.5 lbs. @ 27 in. of Hg | 0.83" | 0.41" | M5 | Metric | Cardboard, Sheet Metal, Plastic | 50° | 120° | 0.65" | 0000000 | 000000 | 0000000 | 000000 |
Multiple Bellows—For Smooth Surfaces | ||||||||||||
Polyurethane Rubber with Plastic Filter | ||||||||||||
3.6 lbs. @ 24 in. of Hg | 1.02" | 0.75" | M5 | Metric | Cardboard, Sheet Metal, Plastic | 50° | 120° | 0.98" | 00000000 | 00000 | 0000000 | 00000 |
Male | ||||||||||||
Multiple Bellows—For Smooth Surfaces | ||||||||||||
Polyurethane Rubber | ||||||||||||
0.7 lbs. @ 24 in. of Hg | 0.43" | 0.65" | M5 | Metric | Cardboard, Sheet Metal, Plastic | 50° | 120° | 0.98" | 0000000 | 00000 | 0000000 | 00000 |
Food Industry Vacuum Cups for Curved and Irregularly Shaped Items

Thread these cups onto your vacuum system to lift and move sanitary items with curves, corners, and uneven surfaces. They have bellows that compress as they contact an object for a better hold than flat cups. The more bellows a cup has, the tighter the hold on a variety of shapes. Made of silicone, these cups withstand the extreme temperatures in food processing applications. They're also FDA compliant for direct contact with food.
Cups with a plastic fitting are much lighter than stainless steel fittings, so they won't weigh down your robot arm. However, they are not as strong or corrosion resistant as stainless steel.
For applications with frequent washdowns, use cups with a stainless steel fitting. They won't corrode from water and harsh cleaning agents. They're stronger than plastic fittings, but they're also heavier.
Metal-detectable cups have a metal additive that sets off metal detectors if they fall into your line. They're bright blue, so they're easy to find and remove. They help you comply with Hazard Analysis and Critical Control Point (HACCP) programs to keep contaminated food from leaving your facility. Designed for thorough cleaning, these cups don't have pits, crevices, or tight angles where bacteria can hide.
Warning: Never use to lift people or items over people.
For technical drawings and 3-D models, click on a part number.

Multiple Bellows
with Male Connection

Vacuum Cups | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Temp., °F | Replacement Cups | |||||||||||
Cap. @ Vacuum | Cup Dia. | Cup Ht. | Thread Size | Thread Type | For Use With | Min. | Max. | O'all Ht. | Each | Each | ||
Multiple Bellows—For Smooth and Textured Surfaces | ||||||||||||
Plastic Fittings and Blue Silicone Rubber Cups | ||||||||||||
0.34 lbs. @ 12 in. of Hg | 0.41" | 0.75" | M5 | Metric | Food, Plastic | -40° | 390° | 1.10" | 00000000 | 000000 | 00000000 | 000000 |
Stainless Steel Fittings and Blue Silicone Rubber Cups | ||||||||||||
0.34 lbs. @ 12 in. of Hg | 0.41" | 0.75" | M5 | Metric | Food, Plastic | -40° | 390° | 1.14" | 00000000 | 00000 | 00000000 | 00000 |
Food Industry Vacuum Cups for Delicate Bags and Film




Attach these cups to threaded connections on your vacuum system to gently lift bags, plastic film, and other sanitary wrappings. They have an ultra-thin, flexible edge that presses against your item, forming a tight seal. The grooved stopper pad inside the cup keeps thin materials from wrinkling, without reducing suction. Made from FDA-compliant silicone, these cups are safe for direct contact with food. They're also bright blue, so they're easy to find and remove if they fall into your line. The aluminum fitting won't corrode from water and humidity.
Add levelers for vacuum cups to lift workpieces with varying heights.
Warning: Never use to lift people or items over people.
For technical drawings and 3-D models, click on a part number.
Vacuum Cups | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Temp., °F | Replacement Cups | ||||||||||||
Cap. @ Vacuum | Cup Dia. | Cup Ht. | Thread Size | Thread Type | For Use With | Min. | Max. | Wt. | O'all Ht. | Each | Each | ||
Female | |||||||||||||
For Smooth Surfaces | |||||||||||||
Aluminum Fittings and Blue Silicone Rubber Cups | |||||||||||||
0.35 lbs. @ 24 in. of Hg | 0.79" | 0.67" | M5 | Metric | Bagged Material, Food, Plastic | -20° | 190° | 0.01 lbs. / 0.01 kg | 0.83" | 0000000 | 000000 | 0000000 | 000000 |
0.54 lbs. @ 24 in. of Hg | 0.98" | 0.69" | M5 | Metric | Bagged Material, Food, Plastic | -20° | 190° | 0.01 lbs. / 0.01 kg | 0.84" | 000000 | 00000 | 0000000 | 00000 |
Male | |||||||||||||
For Smooth Surfaces | |||||||||||||
Aluminum Fittings and Blue Silicone Rubber Cups | |||||||||||||
0.35 lbs. @ 24 in. of Hg | 0.79" | 0.67" | M5 | Metric | Bagged Material, Food, Plastic | -20° | 190° | 0.01 lbs. / 0.01 kg | 0.87" | 0000000 | 00000 | 0000000 | 00000 |
0.54 lbs. @ 24 in. of Hg | 0.98" | 0.69" | M5 | Metric | Bagged Material, Food, Plastic | -20° | 190° | 0.01 lbs. / 0.01 kg | 0.89" | 0000000 | 00000 | 0000000 | 00000 |
Vacuum Cups for Bagged Materials


These cups maintain their grip even as contents shift and the bag changes shape during lifting. Use these cups with a vacuum system to grip, lift, and move items. They have multiple bellows to compensate for different heights.
Warning: Never use to lift people or items over people.
For technical drawings and 3-D models, click on a part number.