3/4"-10 Knobs | McMaster-Carr

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32 Products

Threaded Through-Hole Knobs


Style 1	Style 9	Style 10	Style 11	Style 12

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.

Style 1—Knurled-Head Grip

Style 1

Black-Oxide Steel—Black-oxide steel knobs are stronger than iron and have mild rust resistance.

303 Stainless Steel—303 stainless steel knobs have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.

	Thread		Head		Hub			Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.		1-9	10-Up
Black-Oxide Steel



		3/4"-10	1 3/4"	3"	5/8"	1 3/4"	1 1/8"	6121K132	000000	000000


		303 Stainless Steel



				3/4"-10	1 3/4"	3"	5/8"	1 3/4"	1 1/8"	60205K331	00000	00000

Style 9—Five-Arm Grip

Style 9

	Thread		Head		Hub			Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.		1-9	10-Up
Iron



		3/4"-10	1 3/4"	3 1/4"	1/2"	1 1/2"	1 1/4"	6042K84	000000	000000

Style 10—Five-Arm Grip

Style 10

	Thread		Head		Hub					Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.	Set Screw Thread Size	Set Screw Included		1-9	10-Up
Iron



		3/4"-10	1 3/4"	3 1/4"	1/2"	1 1/2"	1 1/4"	1/4"-20	Yes	3948T29	000000	000000

Style 11—Six-Arm Grip

Style 11

	Thread		Head		Hub			Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.		1-9	10-Up
Iron



		3/4"-10	1 1/2"	3 1/2"	5/8"	1 5/8"	7/8"	6042K75	000000	000000

Style 12—Six-Arm Grip

Style 12

	Thread		Head		Hub					Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.	Set Screw Thread Size	Set Screw Included		1-9	10-Up
Iron



		3/4"-10	1 1/2"	3 1/2"	5/8"	1 5/8"	7/8"	1/4"-20	Yes	3948T24	000000	000000

Threaded-Hole Knobs


Style 1	Style 24

Install these knobs on a threaded stud. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

Style 1—Knurled-Head Grip

Style 1

Black-Oxide Steel—Steel knobs have a black-oxide finish for mild rust resistance.

303 Stainless Steel—303 stainless steel knobs have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.

	Thread		Head		Hub			Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.		1-9	10-Up
Black-Oxide Steel



		3/4"-10	1"	3"	5/8"	1 3/4"	1 1/8"	6121K33	000000	000000


		303 Stainless Steel



				3/4"-10	1"	3"	5/8"	1 3/4"	1 1/8"	60205K76	00000	00000

Style 24—Four-Arm Grip

Style 24

Aluminum—Aluminum knobs have mild corrosion resistance, are lightweight, and are nonmagnetic.

	Thread		Head		Hub			Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.		1-9	10-Up
Aluminum



		3/4"-10	1 1/4"	3"	11/16"	1 3/8"	1 1/4"	6047K34	00000	00000

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.

Knurled-Head Grip

			Head		Hub				Each
	Thread Size	Stud Lg.	Dia.	Ht.	Dia.	Ht.	Stud Material		1-9	10-Up
Aluminum



		3/4"-10	1 3/4"	3 1/2"	1 1/8"	2"	3/4"	Steel	7762K107	000000	000000


		3/4"-10	3"	3 1/2"	1 1/8"	2"	3/4"	Steel	7762K108	00000	00000

Machine Handles

These handles are often used for operating machinery.

Threaded-Hole Mount


2 Arms	2 Arms

Threaded-hole handles install on a threaded stud.

Black-Oxide Steel—Steel handles with a black-oxide finish have mild rust resistance. Steel handles are stronger than iron handles.

		Thread					Knob
	No. of Arms	Size	Depth	Handle Lg.	Projection	Hub Projection	Diameter	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	Black	Black-Oxide Steel	-50 to 250	6049K36	000000

Threaded Through-Hole Mount


2 Arms	2 Arms

Threaded through-hole handles allow long shafts to thread through these handles for mounting versatility.

Zinc-Plated Iron—Iron handles are zinc plated for corrosion resistance.

		Thread
	No. of Arms	Size	Depth	Handle Lg.	Projection	Hub Projection		Each
Zinc-Plated Iron



		2	3/4"-10	1 3/4"	8"	2 15/16"	1 3/4"	6422K49	000000

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.

Four-Arm Grip

Steel—Steel knobs are stronger than phenolic knobs.

	Thread		Head		Hub				Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.	Threading		1-9	10-Up
Steel



		3/4"-10	1 1/4"	3"	5/8"	1 1/4"	5/8"	Fully Threaded	6032K16	000000	000000

Handle Nuts

Style A

Style B

Style C

Image of Attribute. Front orientation. Contains Annotated.

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.

Zinc-Plated Iron—Zinc-plated iron handle nuts have corrosion resistance.

Steel—Steel handle nuts are stronger than iron.

302 Stainless Steel—302 stainless steel handle nuts have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.

		Thread
	Style	Size	Dp.	Handle Lg.	Projection	Hub Projection		Each
Threaded Through-Hole Mount







				Iron

				A	3/4"-10	3/4"	4 1/8"	1 5/8"	3/4"	91043A036	00000




						Zinc-Plated Iron

						A	3/4"-10	3/4"	4 1/8"	1 5/8"	3/4"	91044A036	0000




								Steel

								B	3/4"-10	11/16"	5 7/16"	1 13/16"	11/16"	91038A036	00000




										302 Stainless Steel

										A	3/4"-10	3/4"	4 1/8"	1 5/8"	3/4"	3577K117	00000


										C	3/4"-10	1 1/8"	6 5/32"	3 1/16"	1 1/8"	3577K15	00000

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.

Knurled-Head Grip

	Thread		Head		Hub			Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.		1-9	10-Up
Aluminum



		3/4"-10	1"	3 1/2"	1 1/8"	2"	3/4"	7762K206	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.

Four-Arm Grip

	Thread			Head		Hub			Each
	Sz.	Dp.	For Max. Bar Dia.	Wd.	Ht.	Dia.	Ht.		1-9	10-Up
Zinc-Plated Iron



		3/4"-10	1 1/2"	11/16"	2 1/2"	1 7/16"	1 1/2"	15/16"	6145K24	000000	000000

Knob-Grip Retractable Spring Plungers

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.

18-8 Stainless Steel Nose—The choice for wet and outdoor environments, 18-8 stainless steel resists rusting. It's strong enough for most jobs, but won't withstand stress and vibration as well as steel.

316 Stainless Steel Nose—With the best corrosion resistance of all, 316 stainless steel stands up to harsh weather, salt water, and chemicals. The nose is strong enough for most jobs, but won't withstand stress and vibration as well as steel.

Brass Nose—Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments. Since brass is softer than other metals, these noses are less likely to dent surfaces, however, they could deform under high stress.

Acetal Nose—The best plastic for damp and wet environments, acetal won't swell or lose strength if exposed to moisture. These noses are extra soft to avoid scratching delicate surfaces. They are best for use on soft materials, such as aluminum.

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



		3/4"-10	1.13"	0.45"	0.375"	1.5	16	Black-Oxide Steel	2.15"	Steel	1 1/2"	———	0	8497A77	000000


		3/4"-10	1.13"	0.45"	0.375"	1.5	16	Zinc-Plated Steel	2.15"	Steel	1 1/2"	———	0	84915A779	00000
		3/4"-10	1.2"	0.45"	0.375"	1.5	16	Zinc-Plated Steel	2"	Steel	1 1/2"	84915A82	000000	———	0


		18-8 Stainless Steel Nose



				3/4"-10	1.13"	0.45"	0.375"	1.5	16	18-8 Stainless Steel	2.15"	18-8 Stainless Steel	1 1/2"	———	0	84935A51	00000


				316 Stainless Steel Nose



						3/4"-10	1.13"	0.45"	0.375"	1.5	16	316 Stainless Steel	2.15"	316 Stainless Steel	1 1/2"	———	0	8692A27	00000


						3/4"-10	1.2"	0.45"	0.375"	1.5	16	316 Stainless Steel	2.01"	316 Stainless Steel	1 1/2"	8692A17	00000	———	0


						Brass Nose



								3/4"-10	1"	0.45"	0.375"	1.5	16	Brass	2.01"	Brass	1 1/2"	8471A62	00000	———	0


								3/4"-10	1.13"	0.45"	0.375"	1.5	16	Brass	2.15"	Brass	1 1/2"	———	0	8471A23	00000
								3/4"-10	1.2"	0.45"	0.375"	1.5	16	Brass	2.01"	Brass	1 1/2"	8471A29	00000	———	0


								Acetal Nose



										3/4"-10	1.13"	0.45"	0.375"	1.5	16	18-8 Stainless Steel	2.15"	18-8 Stainless Steel	1 1/2"	———	0	2369A47	00000

Heavy Duty Adjustable Handles


Threaded Stud	Threaded Hole

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

Threaded-stud handles mount into a threaded hole.

						Knob
	Thread Size	Stud Lg.	Handle Lg.	Projection	Hub Projection	Dia.	Material	Color	Stud Material	Temp. Range, ° F		Each
Black-Oxide Steel



		3/4"-10	2 3/8"	5 3/8"	4 5/8"	2 5/8"	1 5/16"	Phenolic	Black	Steel	-20 to 230	6272K32	000000

Threaded Hole

Threaded-hole handles install on a threaded stud.

	Thread					Knob
	Size	Dp.	Handle Lg.	Projection	Hub Projection	Dia.	Material	Color	Insert Material	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	Black	Black-Oxide Steel	-20 to 230	6272K31	000000