7/16"-20 Shafts | McMaster-Carr

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95 Products

Connecting Rods

Designed for use with right-hand threaded rod ends, these rods have right-hand threads on both ends. Use them for remote valve operators, throttle controllers, shifting mechanisms, and virtually any push/pull assembly.

Carbon Steel—Carbon steel rods without a plating are best for dry environments, since moisture will cause them to rust.

18-8 Stainless Steel—18-8 stainless steel rods have good chemical resistance.

Aluminum—Aluminum rods are lightweight and corrosion resistant in wet environments.

				Carbon Steel		18-8 Stainless Steel		Aluminum
	Thread Size	Thread Lg.	OD		Each		Each		Each
3" Overall Length



		7/16"-20	1"	7/16"	———	0	———	0	6516K115	00000


		6" Overall Length



				7/16"-20	2"	7/16"	6516K267	00000	6516K381	000000	6516K26	00000


				9" Overall Length



						7/16"-20	2"	7/16"	6516K276	00000	6516K393	00000	6516K122	0000


						12" Overall Length



								7/16"-20	2"	7/16"	6516K285	00000	6516K405	00000	6516K27	00000


								18" Overall Length



										7/16"-20	2"	7/16"	6516K292	00000	6516K414	00000	6516K28	00000


										24" Overall Length



												7/16"-20	2"	7/16"	6516K301	00000	6516K424	00000	6516K29	00000


												36" Overall Length



														7/16"-20	2"	7/16"	———	0	6516K437	00000	———	0

Hex Drive Thread Adapters


	Unthreaded Tip

A hex drive on one end allows these adapters to be turned with a hex key for ease of installation. Use them to connect parts with coarse threads to parts with fine threads. They're high-strength black-oxide steel and corrosion resistant in dry environments.

Unthreaded Tip—Adapters with an unthreaded tip thread into nuts more easily, reducing the chance of damaging threads.

			Thread Lg.
	Thread Size (A)	Thread Size (B)	(A)	(B)	Lg.	Unthreaded Tip Length	Drive Size	Tensile Strength, psi	Hardness		Each
Black-Oxide Alloy Steel







				Thread Adapters

				7/16"-14	7/16"-20	7/16"	1"	2"	—	3/32"	150,000	Rockwell C39	94358A451	00000


				7/16"-14	7/16"-20	3/4"	1"	2 1/2"	—	3/16"	150,000	Rockwell C39	94358A458	0000
				7/16"-14	7/16"-20	3/4"	1"	2 3/4"	—	3/16"	150,000	Rockwell C39	94358A459	0000
				7/16"-14	7/16"-20	3/4"	1"	3 1/4"	—	3/16"	150,000	Rockwell C39	94358A460	0000
				7/16"-14	7/16"-20	1"	1"	3 1/2"	—	3/16"	150,000	Rockwell C39	94358A461	0000
				7/16"-14	7/16"-20	1"	1"	3 3/4"	—	3/16"	150,000	Rockwell C39	94358A462	0000
				7/16"-14	7/16"-20	1"	1"	4"	—	3/16"	150,000	Rockwell C39	94358A463	0000
				7/16"-14	7/16"-20	1"	1"	4 1/2"	—	3/16"	150,000	Rockwell C39	94358A464	0000




						Unthreaded Tip

						7/16"-14	7/16"-20	1 7/16"	1"	3 1/8"	3/8"	3/16"	150,000	Rockwell C39	94358A457	0000


						7/16"-14	7/16"-20	1 5/8"	1 1/8"	3 3/4"	5/16"	3/16"	150,000	Rockwell C39	94358A452	00000
						7/16"-14	7/16"-20	1 5/8"	1 1/8"	5 1/2"	5/16"	3/16"	150,000	Rockwell C39	94358A453	00000
						7/16"-14	7/16"-20	1 5/8"	1 1/8"	5 7/8"	5/16"	3/16"	150,000	Rockwell C39	94358A454	00000
						7/16"-14	7/16"-20	1 5/8"	1 1/8"	7"	5/16"	3/16"	150,000	Rockwell C39	94358A455	00000
						7/16"-14	7/16"-20	1 5/8"	1 1/8"	7 7/8"	5/16"	3/16"	150,000	Rockwell C39	94358A456	00000

Internally Threaded Connecting Rods

18-8 Stainless Steel—18-8 stainless steel rods have good chemical resistance.

Aluminum—Aluminum rods are lightweight and corrosion resistant in wet environments.

		Each
18-8 Stainless Steel







	18" Overall Length

	7/16"-20	1 3/8"	9/16"	7417N96	000000


	Aluminum







					6" Overall Length

					7/16"-20	1 3/8"	9/16"	6516K66	00000




							12" Overall Length

							7/16"-20	1 3/8"	9/16"	6516K67	00000




									18" Overall Length

									7/16"-20	1 3/8"	9/16"	6516K68	00000




											24" Overall Length

											7/16"-20	1 3/8"	9/16"	6516K69	00000

Sleeve Splines and Bearings

Often used in wet and dirty environments, these sleeve splines and bearings create a compact linear and rotary motion system. The grooves on the splines transmit rotary power as the sleeve bearing moves freely along their length. Sleeve bearings don't have moving parts that can be damaged from dirt and debris. And they don't need to be lubricated, making them overall lower maintenance than ball bearings.

Externally Threaded Bearings

Threaded bearings allow you to mount your load directly to the bearing.

Plastic Bearing—Bearings are plastic with a bronze shell, so they won't rust.

No. of Splines	OD	Overall Lg.	Thread Size	Dynamic Load Cap., lb.	Static Load Cap., lb.	Max. Dynamic Torque	Max. Static Torque	Bearing Material	Shell Material		Each



1/4"	14	1/2"	3/4"	7/16"-20	5	5	Not Rated	Not Rated	Plastic	Bronze	4134N34	000000

Flanges

Flanges work with threaded bearings to give you a surface with mounting holes to attach your load.

	Flange				Mounting Hole
Thread Size	Thk.	OD	Bolt Circle Dia.	Material	No. of	Dia.	Mounting Fasteners Included		Each
7/16"-20	1/4"	1 3/16"	7/8"	Anodized Aluminum	4	0.144"	No	4134N51	000000

Anti-Backlash Externally Threaded Bearings

Anti-backlash bearings minimize the space (play) between the bearing and spline for more accurate, repeatable positioning.

Threaded bearings allow you to mount your load directly to the bearing.

Plastic Bearing—Bearings are plastic with a bronze shell, so they won't rust.

No. of Splines	OD	Overall Lg.	Thread Size	Dynamic Load Cap., lb.	Static Load Cap., lb.	Max. Dynamic Torque	Max. Static Torque	Bearing Material	Shell Material		Each



1/4"	14	1/2"	3/4"	7/16"-20	5	5	Not Rated	Not Rated	Plastic	Bronze	4134N41	000000

Flanges

Flanges work with threaded bearings to give you a surface with mounting holes to attach your load.

	Flange				Mounting Hole
Thread Size	Thk.	OD	Bolt Circle Dia.	Material	No. of	Dia.	Mounting Fasteners Included		Each
7/16"-20	1/4"	1 3/16"	7/8"	Anodized Aluminum	4	0.144"	No	4134N51	000000

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications, from mounting I-beams to suspending light fixtures.

Medium-Strength Steel

Image of Product. Front orientation. Threaded Rods. Threaded Rods.

With tensile strengths from 110,000 psi to 125,000 psi, these rods are strong enough for most industrial applications, such as anchoring machinery and connecting pipe flanges. They are about twice as strong as low-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also medium-strength steel.

Zinc-Yellow-Chromate-Plated Steel—The most common choice for areas with occasional exposure to moisture.

Steel—Best for dry environments since moisture will cause these rods to rust.

	Hardness	Specs. Met		Each
Zinc-Yellow-Chromate-Plated Steel







	7/16"-20

	3 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	99086A333	000000


	Steel







					7/16"-20

					1"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A471	0000


					1 1/2"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A472	0000
					2"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A473	0000
					3"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A474	0000
					4"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A475	0000
					1 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A148	0000
					1 1/2 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A149	00000
					2 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A807	0000
					2 1/2 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A151	00000
					3 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A110	00000
					4 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A133	00000


					5 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A134	00000
					6 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A210	00000
					8 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	92580A135	00000

High-Strength Steel

With a tensile strength of 150,000 psi, these rods are strong enough to stabilize steel frameworks and structural supports, such as I-beams. They are about 25% stronger than medium-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also high-strength steel.

Zinc-Yellow-Chromate-Plated Steel—The most common choice for areas with occasional exposure to moisture.

Steel—Best for dry environments since moisture will cause these rods to rust.

	Hardness	Specs. Met		Each
Zinc-Yellow-Chromate-Plated Steel







	7/16"-20

	1 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3313N105	000000


	2 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3313N106	00000
	3 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3313N107	00000
	6 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	3313N108	00000


	Steel







					7/16"-20

					1"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A262	0000


					1 1/2"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A377	0000
					2"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A378	0000
					3"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A379	0000
					4"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A263	0000
					1 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A140	00000
					2 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A141	00000
					3 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A142	00000
					6 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A143	00000

Low-Strength Steel

With a tensile strength of 50,000 psi or 60,000 psi, these rods are often used to suspend light fixtures, cable trays, and conduit from ceilings. They're about half the strength of medium-strength steel rods. To avoid stripped threads during installation, make sure your nuts are also low-strength steel.

Zinc-Plated Steel—The most common choice for areas with occasional exposure to moisture.

Steel—Best for dry environments since moisture will cause these rods to rust.

	Pkg. Qty.		Pkg.
Zinc-Plated Steel







	7/16"-20

	2	50,000	Rockwell B61	1	90032A032	00000


	3	50,000	Rockwell B61	1	98842A032	0000
	6	50,000	Rockwell B61	1	98915A032	00000


	Steel







					7/16"-20

					1	50,000	Rockwell B61	1	98791A052	0000


					2	50,000	Rockwell B61	1	98791A032	0000
					3	50,000	Rockwell B61	1	98838A032	0000
					6	50,000	Rockwell B61	1	98911A032	00000

Stainless Steel

More corrosion resistant than steel rods and comparable in strength to low-strength steel.

18-8 Stainless Steel—The choice for wet and outdoor environments, these rods resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

	Hardness	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel







	7/16"-20

	1"	70,000	—	Rockwell B70	—	5	95412A333	000000


	2"	70,000	—	Rockwell B70	—	5	95412A334	00000
	3"	70,000	—	Rockwell B70	—	5	95412A335	00000
	4"	70,000	—	Rockwell B70	—	5	95412A336	00000
	1 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A425	0000
	1 ft.	70,000	—	Rockwell B70	—	1	98804A117	0000
	2 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A430	00000
	2 ft.	70,000	—	Rockwell B70	—	1	98805A032	00000
	3 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A435	00000
	3 ft.	70,000	—	Rockwell B70	—	1	98848A032	00000
	6 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A440	00000


	6 ft.	70,000	—	Rockwell B70	—	1	98921A032	00000

Turnbuckle-Style Connecting Rods

Similar to turnbuckles, these rods have right-hand threads on one end and left-hand threads on the other so you can make a linkage that adjusts for tension. Add right- and left-hand threaded rod ends to build your linkages. Rods have a hex-shaped body so you can adjust them with a wrench.

Note: The end with the left-hand threads is marked with a groove.

Carbon Steel—Carbon steel rods handle higher loads than aluminum and 18-8 stainless steel rods.

18-8 Stainless Steel—18-8 stainless steel rods are corrosion resistant and stand up to chemicals.

Aluminum—Aluminum rods are lightweight and have good corrosion resistance.

				Carbon Steel		18-8 Stainless Steel		Aluminum
	Thread Size	Thread Lg.	Hex Size		Each		Each		Each
4" Overall Length



		7/16"-20	1 1/4"	7/16"	8421N92	000000	8422N92	000000	8420K177	000000

Internally Threaded Turnbuckle-Style Connecting Rods

Note: The end with the left-hand threads is marked with a groove.

Carbon Steel—Carbon steel rods generally handle higher loads than aluminum and stainless steel rods.

		Each
Carbon Steel







	2" Overall Length

	7/16"-20	3/4"	5/8"	8415N61	000000




			4" Overall Length

			7/16"-20	1"	5/8"	8415N81	00000




					6" Overall Length

					7/16"-20	1"	5/8"	8415N91	00000




							12" Overall Length

							7/16"-20	1"	5/8"	8415N101	00000

Threaded Two-Piece Rod Collars

Install these collars anywhere on a shaft without removing components or having access to the ends of the shaft. Collars clamp evenly around the shaft to create a strong, mar-free hold. Tighten the clamping screws to secure.

Black-Oxide 1215 Carbon Steel—Black-oxide steel collars have some corrosion resistance.

303 Stainless Steel—303 stainless steel collars have excellent corrosion resistance.

			Clamping Screw		Black-Oxide 1215 Carbon Steel		303 Stainless Steel
For Shaft Thread Size	OD	Wd.	Type	No. of		Each		Each
7/16"-20	15/16"	11/32"	Socket Head	2	60705K32	000000	60705K52	000000