Iron Chain | McMaster-Carr

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85 Products

Powered Overhead Beam Conveyor Trolley Hooks

Image of Product. Front orientation. Conveyor Trolley Hooks.

Hooks allow items to rotate 90° degrees while suspended. They attach to trolleys with a bolt and nut.

Hook
Opening Wd.	Usable Lg.	Movement	Material	Mounting Fasteners Included	Mounting Hole Dia.	Max. Temp., ° F		Each
1 1/4"	4 1/8"	90° Rotation	Iron	No	1/2"	450	5920K31	000000

Dual Slide-Bolt-Latch Snap Hooks

The slide bolt provides a more secure connection than standard snap hooks.

Zinc-Plated Iron—Zinc-plated snap hooks are mildly corrosion resistant.

	Snap Opening Wd.	Usable Lg.	Latch Type		Each
Zinc-Plated Iron



	Not Rated	9/32"	3 3/8"	Slide Bolt	3901T52	00000


	Not Rated	5/16"	3"	Slide Bolt	3901T433	0000
	Not Rated	3/8"	4 1/8"	Slide Bolt	3901T53	0000
	Not Rated	7/16"	4 1/16"	Slide Bolt	3901T65	0000

Snap Hooks with Swivel Eye


Style 1	Style 2	Style 3

These snap hooks have an eye that rotates for easy positioning.

Nickel-Plated Iron—Brass and nickel-plated snap hooks are more corrosion resistant than zinc-plated snap hooks.

Zinc-Plated Iron—Zinc-plated snap hooks are mildly corrosion resistant.

	Wt. Cap.	Snap Opening Wd.	Usable Lg.	Eye Inside Wd.	Latch Type		Each
Nickel-Plated Iron



	1	Not Rated	3/8"	3"	3/4"	Spring	3921T23	00000


	1	Not Rated	13/32"	2 7/8"	3/4"	Spring	3921T24	0000
	1	Not Rated	21/32"	3 7/8"	13/16"	Spring	3921T25	00000
	1	Not Rated	25/32"	4 1/8"	1"	Spring	3921T26	00000
	1	Not Rated	25/32"	5 1/4"	1 5/16"	Spring	3921T27	00000
	2	Not Rated	1/2"	3 3/8"	7/8"	Spring	3921T14	0000
	2	Not Rated	1/2"	4 1/8"	1"	Spring	3921T21	00000
	2	Not Rated	9/16"	4 1/8"	1 1/8"	Spring	3921T22	00000


	Zinc-Plated Iron



			3	Not Rated	3/8"	3 3/16"	5/8"	Spring	3903T12	00000


			3	Not Rated	3/8"	3 3/4"	7/8"	Spring	3903T13	0000
			3	Not Rated	3/4"	5 1/8"	1 1/8"	Spring	3903T22	00000

Manual Overhead Beam Conveyor Trolleys

Prevent excess wear on the track and trolley—only the wheels of these push trolleys come in contact with the beam. Trolleys can be installed anywhere along the beam.

					Material
For Track Ht.	For Overall Beam Wd.	Ht.	Eye Dia.	Wt. Cap., lb.	Frame	Wheel	Bearing	Bearing Type	Max. Temp., ° F		Each
3" to 4"	2.33" to 2.66"	2 3/4"	1 1/16"	500	Iron	Steel	Steel	Ball	200	5920K35	0000000
4" to 6"	2.66" to 3.33"	4 15/16"	1 1/2"	1,500	Iron	Steel	Steel	Ball	200	5920K37	000000

Chain Wheels for Roll-Up Doors


Solid Housing	Spoked Housing

Pull a chain (sold separately) to manually open roll-up doors. All of these chain wheels have a machinable hub so you can mill the exact bore size you need.

Iron—Iron hand wheels are durable.

Required Chain—The chain listed is designed for use with these chain wheels—do not substitute other chain. The chain that's not rated with a capacity is for opening, but not supporting, the weight of a door—use it on doors that have independent supports.

Wheels						Required Chain
Dia.	Thk.	Max. Bore Size	Housing Type		Each	Wt. Cap., lb.		Per Ft.







			Iron

			5 7/8"	1 3/8"	1 1/2"	Solid	3172T112	0000000	900	3171T51	000000


			8"	1 5/16"	1 1/4"	Spoked	3172T128	000000	Not Rated	3172T58	00000
			10"	3 1/2"	3"	Solid	3171T121	000000	2,200	3171T82	00000

Slide-Bolt-Latch Snap Hooks with Hook Attachment

The slide bolt provides a more secure connection than standard snap hooks.

Zinc-Plated Iron—Zinc-plated iron snap hooks are mildly corrosion resistant.

	Snap Opening Wd.	Usable Lg.	Inside Wd.	Latch Type		Each
Zinc-Plated Iron



	Not Rated	1/4"	2 5/16"	9/16"	Slide Bolt	3910T11	00000


	Not Rated	3/8"	2 13/16"	9/16"	Slide Bolt	3910T12	0000
	Not Rated	3/8"	2 15/16"	3/4"	Slide Bolt	3910T13	0000
	Not Rated	7/16"	3 3/8"	3/4"	Slide Bolt	3910T14	0000
	Not Rated	1/2"	3 1/2"	13/16"	Slide Bolt	3910T23	0000
	Not Rated	1/2"	4 1/4"	1 1/8"	Slide Bolt	3910T19	00000
	Not Rated	1/2"	5"	1 3/8"	Slide Bolt	3910T18	00000

Chain Wheels for Overhead Valves

Open and close almost any hand-wheel operated overhead valve from the floor. These wheels can also be used to operate hatches, skylights, and other overhead components. Use these wheels with galvanized steel lock-link chain (not included).

Iron—Iron hand wheels are durable.

Galvanized Iron—Iron hand wheels are durable. Those with a galvanized finish provide corrosion resistance.

				Wheel
	For Hand Wheel Dia.	For Lock-Link Chain Trade Size	Hole Dia.	Trade Size	Dia.	Projection	Overall Ht.		Each
Unthreaded Through-Hole Mount







				Iron

				2" to 4"	2	1/2"	0	4"	1 3/4"	4 5/8"	9765K11	000000


				4 1/4" to 5 3/4"	1/0	7/8"	1	5 3/4"	2 1/4"	6 3/8"	9765K13	000000
				6" to 7 1/2"	1/0	7/8"	1 1/2	7 1/2"	2 3/8"	7 3/4"	9765K15	000000
				7 3/4" to 9"	1/0	2 1/8"	2	9"	2 3/8"	10 1/2"	9765K17	000000
				9 1/4" to 12 1/2"	4/0	2 1/8"	2 1/2	12"	2 5/8"	12 1/2"	9765K19	000000
				12 3/4" to 15 1/2"	4/0	2 1/8"	3	15 1/2"	2 5/8"	15 1/2"	9765K21	000000
				15 3/4" to 19"	4/0	2 7/8"	3 1/2	18 1/2"	3 1/8"	18 1/2"	9765K23	000000
				19 1/4" to 22"	5/0	3 1/8"	4	21 1/2"	3 1/8"	21 1/2"	9765K25	000000




						Galvanized Iron

						2" to 4"	2	1/2"	0	4"	1 3/4"	4 5/8"	8017K21	000000


						4 1/4" to 5 3/4"	1/0	7/8"	1	5 3/4"	2 1/4"	6 3/8"	8017K22	000000
						6" to 7 1/2"	1/0	7/8"	1 1/2	7 1/2"	2 3/8"	7 3/4"	8017K23	000000
						7 3/4" to 9"	1/0	2 1/8"	2	9"	2 3/8"	10 1/2"	8017K24	000000
						9 1/4" to 12 1/2"	4/0	2 1/8"	2 1/2	12"	2 5/8"	12 1/2"	8017K25	000000
						12 3/4" to 15 1/2"	4/0	2 1/8"	3	15 1/2"	2 5/8"	15 1/2"	8017K26	000000
						15 3/4" to 19"	4/0	2 7/8"	3 1/2	18 1/2"	3 1/8"	18 1/2"	8017K27	000000
						19 1/4" to 22"	5/0	3 1/8"	4	21 1/2"	3 1/8"	21 1/2"	8017K28	000000

Polypropylene Plastic Chain Container

Lg.	Dia.		Each
11 5/8"	4 3/4"	3600T85	000000

Slide-Bolt-Latch Snap Hooks with Swivel Eye


Style 1

The slide bolt provides a more secure connection than standard snap hooks.

Nickel-Plated Iron—Brass and nickel-plated snap hooks have mild corrosion resistance.

	Wt. Cap.	Snap Opening Wd.	Usable Lg.	Eye Inside Wd.	Latch Type		Each
Nickel-Plated Iron



	1	Not Rated	3/8"	2 13/16"	5/8"	Slide Bolt	3913T112	00000


	1	Not Rated	3/8"	2 15/16"	3/4"	Slide Bolt	3913T131	0000
	1	Not Rated	3/8"	3 3/16"	1"	Slide Bolt	3913T114	0000
	1	Not Rated	3/8"	3 7/16"	7/8"	Slide Bolt	3913T115	0000
	1	Not Rated	3/8"	3 1/2"	1 1/8"	Slide Bolt	3913T116	0000
	1	Not Rated	5/8"	3 13/16"	5/8"	Slide Bolt	3913T25	0000

Impact-Resistant Chain Wheels for Overhead Valves

Made of high-strength ductile iron, these wheels withstand impact better than other wheels to open and close large or stubborn overhead valves from the floor. They can also be used to operate hatches, skylights, and other overhead components. Use these wheels with galvanized steel lock-link chain (not included).

Iron—Iron hand wheels are durable.

				Wheel
	For Hand Wheel Dia.	For Lock-Link Chain Trade Size	Hole Dia.	Trade Size	Dia.	Projection	Overall Ht.		Each
Unthreaded Through-Hole Mount







				Iron

				2" to 4"	2	1/2"	0	4"	1 3/4"	4 5/8"	9765K51	0000000


				4 1/4" to 5 3/4"	1/0	7/8"	1	5 3/4"	2 1/4"	6 3/8"	9765K52	000000
				6" to 7 1/2"	1/0	7/8"	1 1/2	7 1/2"	2 3/8"	7 3/4"	9765K53	000000
				7 3/4" to 9"	1/0	2 1/8"	2	9"	2 3/8"	10 1/2"	9765K54	000000
				9 1/4" to 12 1/2"	4/0	2 1/8"	2 1/2	12"	2 5/8"	12 1/2"	9765K55	000000
				12 3/4" to 15 1/2"	4/0	2 1/8"	3	15 1/2"	2 5/8"	15 1/2"	9765K56	000000
				15 3/4" to 19"	4/0	2 7/8"	3 1/2	18 1/2"	3 1/8"	18 1/2"	9765K57	00000000
				19 1/4" to 22"	5/0	3 1/8"	4	21 1/2"	3 1/8"	21 1/2"	9765K58	00000000

Polypropylene Plastic Chain Container

Lg.	Dia.		Each
11 5/8"	4 3/4"	3600T85	000000

Dual Snap Hooks

	Snap Opening Wd.	Usable Lg.	Latch Type		Each
Nickel-Plated Iron



	Not Rated	5/16"	3 1/16"	Spring	3904T18	00000


	Not Rated	7/16"	4 1/2"	Spring	3904T28	0000

Figure-Eight Ring Links


	Connector Shown Open

Often used in cable stringing and pulling applications, these ring links lock quickly and stay closed under tension. They’re not for use in overhead lifting applications. They should not be used as a link for chain or to repair chain.

Eye ID	Wt. Cap., lb.		Each







Galvanized Iron

3/8"	13/16"	1 3/4"	1/4"	100	3346T21	00000


17/32"	1 11/32"	2 17/32"	9/16"	400	3346T24	00000
5/8"	1 21/32"	3 3/16"	3/4"	900	3346T26	00000
3/4"	2 1/2"	5 1/4"	1 1/16"	2,000	3346T28	00000

Manual Overhead Enclosed Track Conveyor Trolleys

Push to move material along the conveyor.

Height is measured from the bottom of the track to the center of the connection holes.

							Material
Overall Ht.	For Inside Track Wd.	Ht.	Wd.	Wheel Dia.	Eye Dia.	Wt. Cap., lb.	Frame	Wheel	Bearing	Bearing Type	Max. Temp., ° F		Each
4 9/16"	2 1/2"	1 1/2"	6"	2.25"	17/32"	250	Iron	Steel	Steel	Ball	450	5927K42	000000

Snap Hooks with Eye


Style 2	Style 4

Create fast connections with items, such as rope, chain, and straps.

Nickel-Plated Iron—Brass and nickel-plated snap hooks are more corrosion resistant than zinc-plated snap hooks.

Zinc-Plated Iron—Zinc-plated and zinc alloy snap hooks are mildly corrosion resistant.

	Wt. Cap.	Snap Opening Wd.	Usable Lg.	Eye Inside Wd.	Latch Type		Each
Nickel-Plated Iron



	2	Not Rated	1/2"	3"	3/4"	Spring	3920T14	00000


	Zinc-Plated Iron



			4	Not Rated	1/4"	3"	5/8"	Spring	3920T15	0000

Overlapping-Arm-Locking-Latch Snap Hooks with Swivel Eye


	Style 1

The force of the load helps keep the arms closed. Press the trigger for quick connection and disconnection.

Nickel-Plated Iron—Brass and nickel-plated snap hooks have mild corrosion resistance.

	Wt. Cap.	Snap Opening Wd.	Usable Lg.	Eye Inside Wd.	Latch Type	Locking Latch Type		Each
Nickel-Plated Iron



	1	Not Rated	3/8"	2 1/16"	3/8"	Locking	Overlapping Arm	3919T262	00000


	1	Not Rated	3/8"	2 1/4"	1/2"	Locking	Overlapping Arm	3919T265	0000
	1	Not Rated	7/16"	2 3/8"	5/8"	Locking	Overlapping Arm	3919T263	0000
	1	Not Rated	1/2"	2 5/16"	3/4"	Locking	Overlapping Arm	3919T264	0000
	1	Not Rated	5/8"	3 5/16"	3/4"	Locking	Overlapping Arm	3919T23	0000
	1	Not Rated	5/8"	3 5/8"	1"	Locking	Overlapping Arm	3919T15	0000

Quick-Release Shackles

Collar-Release

Shackles with

Eye End

Push the spring-loaded pin or collar to fasten these shackles, then pull it to release them. Traditionally used to secure and adjust lines on boats, they open faster than shackles with a screw or cotter pin.

Warning: Not for overhead lifting.

Collar-Release Shackles—Pull the collar or sides of these shackles to open them. The collar keeps the shackle closed and has smooth sides, so it won’t snag or open accidentally.

	End Attachment Type	Eye ID		Each
Collar-Release Shackles







	Nickel-Plated Iron

	5/8"	3 1/4"	Not Rated	Eye	5/8"	37115T4	00000

Conveyor Belt Drive Sprockets

Sprockets drive belting to keep it running smoothly.

One Piece

For Belt Series Number

810 and 815

For Belt Series No.	For Shaft Dia.	No. of Teeth	OD	Wd.	Material	Temp. Range, ° F		Each
810, 815	0.80"	21	5.12"	1.67"	Iron	0 to 480	1603N11	0000000
810, 815	0.80"	23	5.59"	1.67"	Iron	0 to 480	1603N12	000000
810, 815	0.80"	25	6.10"	1.67"	Iron	0 to 480	1603N13	000000

Heavy Duty Spring-Loaded Roller Chain and Belt Tensioners


Tensioner Shown with Idler Shaft (Sold Separately)

Designed for large belt and chain drives, these tensioners maintain correct drive tension for smooth operation, maximum power, and a long service life. They're spring loaded, which keeps constant tension on a belt or chain and automatically adjusts for changes in loads. An idler shaft (sold separately) is required.

			Mounting Plate		Overall			Mounting Holes
Tension Force, lbf	For Idler ID	Travel Ht.	Ht.	Wd.	Ht.	Dp.	Material	No. of	Lg.	Mounting Fasteners Included		Each



	84	1 1/2"	3"	7"	6"	18 5/16"	3 3/16"	Cast Iron	4	1 7/8"	Yes	5847N11	0000000

Idler Shafts

			Overall		Thread
	Dia.	Lg.	Lg.	Dia.	Size	Lg.	Edge Type	Fabrication	Hardness Rating	Hardness	Includes		Each
Shaft Collar End







				1215 Carbon Steel

				1 1/2"	3 1/4"	5 11/16"	2 1/4"	1"-14	1 5/16"	Chamfered	Hardened	Extra Hard	Rockwell C58	Grease Fitting	2435K104	000000


				1 1/2"	5 1/4"	7 11/16"	2 1/4"	1"-14	1 5/16"	Chamfered	Hardened	Extra Hard	Rockwell C58	Grease Fitting	2435K105	00000

Adjustable-Arm Roller Chain and Belt Tensioners

Horizontal Mount Shown

with Sprocket (Not

Included)

Tensioners take up slack and allow you to adjust tension on your roller chain or belt. Position the adjustment arm to control tension in a 360° arc. They are for use with idler sprockets or pulleys.

		Mounting Plate
Thread Size	Tension Force	Ht.	Wd.	Tension Arm Lg.	Overall Dp.	Material	Arm Rotation	Includes		Each







			Horizontal Mount

			1"-14	Not Rated	7 3/8"	7 1/2"	6 1/2"	11 1/4"	Cast Iron	360°	Idler Shaft	60225K311	0000000