Selecting Compatible Lead Screws and Nuts
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Palm-Grip Threaded-Stud Knobs

The domed top allows you to firmly hold these knobs in the palm of your hand to position, tighten, and hold fixtures, equipment, and machinery. Mount them into a threaded hole. Made of aluminum, the knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
Threaded-Hole Knobs


Install these knobs on a threaded stud. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
Steel knobs have a black-oxide finish for mild rust resistance.
Stainless steel knobs have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.
Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
Palm-Grip Threaded-Hole Knobs

The domed top allows you to firmly hold these knobs in the palm of your hand to position, tighten, and hold fixtures, equipment, and machinery. Install these knobs on a threaded stud. Made of aluminum, all have mild corrosion resistance, are lightweight, and are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
Thread | Head | Hub | Each | |||||
---|---|---|---|---|---|---|---|---|
Size | Dp. | Dia. | Ht. | Dia. | Ht. | 1-9 | 10-Up | |
Aluminum | ||||||||
3/4"-10 | 1" | 3 1/2" | 1 1/8" | 2" | 3/4" | 00000000 | 000000 | 000000 |
Threaded Through-Hole Knobs





Long shafts can thread through these knobs for mounting versatility. The knobs provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
Steel knobs are stronger than iron. Those with a black-oxide finish have mild rust resistance.
Stainless steel knobs have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
Thread | Head | Hub | Each | ||||||
---|---|---|---|---|---|---|---|---|---|
Size | Dp. | Dia. | Ht. | Dia. | Ht. | Set Screw Thread Size | 1-9 | 10-Up | |
Style 1—Knurled Grip | |||||||||
303 Stainless Steel | |||||||||
3/4"-10 | 1 3/4" | 3" | 5/8" | 1 3/4" | 1 1/8" | __ | 000000000 | 000000 | 000000 |
Black-Oxide Steel | |||||||||
3/4"-10 | 1 3/4" | 3" | 5/8" | 1 3/4" | 1 1/8" | __ | 00000000 | 00000 | 00000 |
Style 9—Five Arm Grip | |||||||||
Iron | |||||||||
3/4"-10 | 1 3/4" | 3 1/4" | 1/2" | 1 1/2" | 1 1/4" | __ | 0000000 | 00000 | 00000 |
Style 10—Five Arm Grip | |||||||||
Iron | |||||||||
3/4"-10 | 1 3/4" | 3 1/4" | 1/2" | 1 1/2" | 1 1/4" | 1/4"-20 | 0000000 | 00000 | 00000 |
Style 11—Six Arm Grip | |||||||||
Iron | |||||||||
3/4"-10 | 1 1/2" | 3 1/2" | 5/8" | 1 5/8" | 7/8" | __ | 0000000 | 00000 | 00000 |
Style 12—Six Arm Grip | |||||||||
Iron | |||||||||
3/4"-10 | 1 1/2" | 3 1/2" | 5/8" | 1 5/8" | 7/8" | 1/4"-20 | 0000000 | 00000 | 00000 |
Quick-Lock Threaded Through-Hole Knobs



Quick to install, position, and remove, these knobs have an angled hole that allows you to tilt the knob to slide it over threads, then straighten it to grip the threads and secure the knob. They provide a firm grip to position, tighten, and hold fixtures, equipment, and machinery.
Steel knobs are stronger than phenolic knobs.
For technical drawings and 3-D models, click on a part number.
Thread | Head | Hub | Each | ||||||
---|---|---|---|---|---|---|---|---|---|
Size | Dp. | Dia. | Ht. | Dia. | Ht. | Threading | 1-9 | 10-Up | |
Four Arm Grip | |||||||||
Steel | |||||||||
3/4"-10 | 1 1/4" | 3" | 5/8" | 1 1/4" | 5/8" | Fully Threaded | 0000000 | 000000 | 000000 |
Threaded Through-Hole Bar Knobs

Install these knobs on a threaded stud. Insert a bar between the arms and twist. The bar provides maximum leverage to tighten knobs securely. Made of iron, these knobs have a zinc-plated finish for corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Thread | Head | Hub | Each | ||||||
---|---|---|---|---|---|---|---|---|---|
Size | Dp. | For Max. Bar Dia. | Ht. | Wd. | Dia. | Ht. | 1-9 | 10-Up | |
Four Arm Grip | |||||||||
Zinc-Plated Iron | |||||||||
3/4"-10 | 1 1/2" | 11/16" | 1 7/16" | 2 1/2" | 1 1/2" | 15/16" | 0000000 | 000000 | 000000 |
Heavy Duty Adjustable Handles
These rugged steel handles provide lasting durability for applications involving frequent positioning, tightening, and holding adjustments. Lift the handle to rotate freely; then release the handle to engage and tighten. These handles are also known as clamping handles. All have a black-oxide finish for mild rust resistance.
Threaded-stud handles mount into a threaded hole.
Threaded-hole handles install on a threaded stud.
For technical drawings and 3-D models, click on a part number.


Thread | Knob | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Stud Lg. | Handle Lg. | Projection | Hub Projection | Dia. | Material | Color | Temp. Range, °F | Each | |
Black-Oxide Steel | ||||||||||
3/4"-10 | 2 3/8" | 5 3/8" | 4 5/8" | 2 5/8" | 1 5/8" | Phenolic Plastic | Black | -20° to 230° | 0000000 | 000000 |


Thread | Knob | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Dp. | Handle Lg. | Projection | Hub Projection | Dia. | Material | Color | Temp. Range, °F | Each | |
Black-Oxide Steel | ||||||||||
3/4"-10 | 1 3/8" | 5 3/8" | 4 5/8" | 2 5/8" | 1 5/8" | Phenolic Plastic | Black | -20° to 230° | 0000000 | 000000 |
Machine Handles
These handles are often used for operating machinery.
Threaded-hole handles install on a threaded stud.
Threaded through-hole handles allow long shafts to thread through these handles for mounting versatility.
Steel handles are stronger than iron handles. Those with a black-oxide finish have mild rust resistance.
Iron handles are zinc plated for corrosion resistance.
For technical drawings and 3-D models, click on a part number.


Thread | Knob | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of Arms | Size | Dp. | Handle Lg. | Projection | Hub Projection | Dia. | Material | Color | Insert Material | Temp. Range, °F | Each | |
Black-Oxide Steel | ||||||||||||
2 | 3/4"-10 | 1" | 9 3/8" | 3 1/2" | 2 1/4" | 1 3/8" | Nylon Plastic | Black | Black-Oxide Steel | -50° to 250° | 0000000 | 000000 |


Thread | |||||||
---|---|---|---|---|---|---|---|
Number of Arms | Size | Dp. | Handle Lg. | Projection | Hub Projection | Each | |
Zinc-Plated Iron | |||||||
2 | 3/4"-10 | 1 3/4" | 8" | 2 15/16" | 1 3/4" | 0000000 | 000000 |
Handle Nuts




Use these handles for quick assembly and disassembly. Their offset grip provides leverage, making them a good alternative to wing nuts. Long shafts can thread through these handles for mounting versatility.
Iron handle nuts with a zinc-plated finish have corrosion resistance.
Steel handle nuts are stronger than iron.
Stainless steel handle nuts have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
---|---|---|---|---|---|---|---|
Size | Dp. | Handle Lg. | Projection | Hub Projection | Each | ||
Threaded Through Hole | |||||||
Iron | |||||||
A | 3/4"-10 | 3/4" | 4 1/8" | 1 5/8" | 3/4" | 000000000 | 00000 |
Zinc-Plated Iron | |||||||
A | 3/4"-10 | 3/4" | 4 1/8" | 1 5/8" | 3/4" | 000000000 | 0000 |
Steel | |||||||
B | 3/4"-10 | 11/16" | 5 7/16" | 1 13/16" | 11/16" | 000000000 | 00000 |
Stainless Steel | |||||||
A | 3/4"-10 | 3/4" | 4 1/8" | 1 5/8" | 3/4" | 00000000 | 00000 |
C | 3/4"-10 | 1 1/8" | 6 5/32" | 3 1/16" | 1 1/8" | 0000000 | 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. 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.
Thread | Nose | Nose Force, lbs. | Handle | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | Lg. | Body Lg. | Extended Lg. | Dia. | Temp. Range, °F | Extended | Compressed | Dia. | Texture | Choose a Locking Type | Each | |
Zinc-Plated Steel Body and Steel Nose | ||||||||||||
3/4"-10 | 1.2" | 2" | 0.45" | 3/8" | __ | 1.5 | 16 | 1 1/2" | Knurled | 000000000 | 000000 | |
Black-Oxide Steel Body and Steel Nose | ||||||||||||
3/4"-10 | 1.2" | 2" | 0.45" | 3/8" | __ | 1.5 | 16 | 1 1/2" | Knurled | 0000000 | 00000 | |
316 Stainless Steel Body and 316 Stainless Steel Nose | ||||||||||||
3/4"-10 | 1.2" | 2" | 0.45" | 3/8" | __ | 1.5 | 16 | 1 1/2" | Knurled | 0000000 | 00000 | |
18-8 Stainless Steel Body and 18-8 Stainless Steel Nose | ||||||||||||
3/4"-10 | 1.2" | 2" | 0.45" | 3/8" | __ | 1.5 | 16 | 1 1/2" | Knurled | 00000000 | 00000 | |
18-8 Stainless Steel Body and Acetal Plastic Nose | ||||||||||||
3/4"-10 | 1.2" | 2" | 0.45" | 3/8" | -30° to 190° | 1.5 | 16 | 1 1/2" | Knurled | 0000000 | 00000 | |
Brass Body and Brass Nose | ||||||||||||
3/4"-10 | 1.2" | 2" | 0.45" | 3/8" | __ | 1.5 | 16 | 1 1/2" | Knurled | 0000000 | 00000 |
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.
316 stainless steel is more corrosion resistant than 18-8 stainless steel and can be used in saltwater environments.
Brass is corrosion resistant in wet environments; brass noses are soft to minimize marring.
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 | Lg. | Body Lg. | Extended Lg. | Dia. | Dia. | Material | Texture | Extended | Compressed | Choose a Locking Type | Each | |
Zinc-Plated Steel Body and Steel Nose | ||||||||||||
3/4"-10 | 1.2" | 2" | 0.45" | 3/8" | 1 1/2" | Steel | Knurled | 1.5 | 16 | 00000000 | 000000 | |
316 Stainless Steel Body and 316 Stainless Steel Nose | ||||||||||||
3/4"-10 | 1" | 2" | 0.45" | 3/8" | 1 1/2" | 316 Stainless Steel | Knurled | 1.5 | 16 | 0000000 | 00000 | |
Brass Body and Brass Nose | ||||||||||||
3/4"-10 | 1" | 2" | 0.45" | 3/8" | 1 1/2" | Brass | Knurled | 1.5 | 16 | 0000000 | 00000 |