9/16"-12 Bolts | McMaster-Carr

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30,000 psi to 99,999 psi

100,000 psi or greater

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23/64"

9/16"

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Right Hand

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139 Products

About Hex Head Screws and Bolts

Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.

Steel Hex Head Screws

Fully Threaded

Partially

Threaded

Our most popular hex head screws. These have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive.

Length is measured from under the head.

Medium-Strength Fastener—Your go-to screws for fastening most machinery and equipment. They have tensile strengths from 90,000 to 120,000 psi.

High-Strength Fastener—Commonly used to fasten components in valves, pumps, motors, and other high-stress applications. These screws have a tensile strength of 125,000 to 160,000 psi.

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

Zinc-Yellow-Chromate-Plated Steel—With slightly better corrosion resistance than zinc-plated steel screws, these stand up to more frequent exposure to moisture.

		Head
	Lg.	Wd.	Ht.	Threading	Thread Spacing	Fastener Strength Grade/Class	Tensile Strength, psi	Pkg. Qty.		Pkg.
Medium-Strength Zinc-Plated Steel







				9/16"-12

				1"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 5	120,000	10	92865A757	000000


				1 1/4"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 5	120,000	10	92865A759	00000
				1 1/2"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 5	120,000	10	92865A761	00000
				1 3/4"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 5	120,000	10	92865A763	00000
				2"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 5	120,000	10	92865A765	00000
				2 1/4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	10	91247A766	00000
				2 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	10	91247A767	00000
				2 3/4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	10	91247A768	00000
				3"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	10	91247A769	00000
				3 1/4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	5	91247A770	00000
				3 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	5	91247A771	00000


				3 3/4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	5	91247A772	00000
				4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	5	91247A773	00000
				4 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	5	91247A775	00000
				5"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	5	91247A777	00000
				5 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	5	91247A779	00000
				6"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	5	91247A781	00000
				6 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	1	91247A783	0000
				7"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 5	120,000	1	91247A785	0000


				High-Strength Zinc-Yellow-Chromate-Plated Steel







								9/16"-12

								1"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 8	150,000	10	92620A758	00000


								1 1/4"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 8	150,000	10	92620A759	00000
								1 1/2"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 8	150,000	10	92620A761	00000
								1 3/4"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 8	150,000	5	92620A763	0000
								2"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 8	150,000	5	92620A765	00000
								2 1/4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	5	91257A766	00000
								2 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	5	91257A767	00000
								2 3/4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	5	91257A768	00000
								3"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	5	91257A769	00000
								3 1/4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	5	91257A770	00000
								3 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	5	91257A771	00000


								3 3/4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	5	91257A772	00000
								4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	5	91257A773	00000
								4 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91257A774	0000
								5"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91257A775	0000
								5 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91257A776	0000
6"								13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91257A777	0000
6 1/2"	13/16"							23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91257A778	0000
7"	13/16"							23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91257A779	0000
7 1/2"	13/16"							23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	92620A287	00000
8"	13/16"							23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91257A793	00000


High-Strength Steel







								9/16"-12

								1 1/4"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 8	150,000	5	91268A715	00000


								1 1/2"	13/16"	23/64"	Fully Threaded	Coarse	SAE Grade 8	150,000	5	91268A723	00000
								2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91268A728	0000
								2 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91268A739	0000
								3"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91268A740	0000
								3 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91268A794	0000
								4"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91268A795	0000
								4 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91268A796	0000
								5"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91268A797	0000
								5 1/2"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91268A798	0000
								6"	13/16"	23/64"	Partially Threaded	Coarse	SAE Grade 8	150,000	1	91268A800	0000

Stainless Steel Hex Head Screws

Fully Threaded

Partially

Threaded

Won't rust or corrode when exposed to moisture and chemicals. These screws have a head with six flat sides to keep wrenches and sockets from slipping and rounding off the drive.

Length is measured from under the head.

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

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel screws, these won't degrade when exposed to harsh weather, salt water, and most chemicals.

		Head					Imported
	Lg.	Wd.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				9/16"-12

				3/4"	13/16"	23/64"	Fully Threaded	Coarse	80,000	5	92800A262	00000


				1"	13/16"	23/64"	Fully Threaded	Coarse	80,000	5	92240A758	0000
				1 1/4"	13/16"	23/64"	Fully Threaded	Coarse	80,000	5	92240A760	0000
				1 1/2"	13/16"	23/64"	Fully Threaded	Coarse	80,000	5	92240A761	0000
				1 3/4"	13/16"	23/64"	Fully Threaded	Coarse	80,000	5	92800A263	0000
				2"	13/16"	23/64"	Fully Threaded	Coarse	80,000	5	92240A765	0000
				2 1/4"	13/16"	23/64"	Partially Threaded	Coarse	80,000	5	92800A264	0000
				2 1/2"	13/16"	23/64"	Partially Threaded	Coarse	80,000	1	92198A767	0000
				2 3/4"	13/16"	23/64"	Partially Threaded	Coarse	80,000	5	92800A265	0000
				3"	13/16"	23/64"	Partially Threaded	Coarse	80,000	1	92198A769	0000
				3 1/2"	13/16"	23/64"	Partially Threaded	Coarse	80,000	1	92198A662	0000


				4"	13/16"	23/64"	Partially Threaded	Coarse	80,000	1	92198A664	0000
				5"	13/16"	23/64"	Partially Threaded	Coarse	80,000	1	92198A665	0000
				5 1/2"	13/16"	23/64"	Partially Threaded	Coarse	80,000	1	92800A266	0000
				6"	13/16"	23/64"	Partially Threaded	Coarse	80,000	1	92198A668	0000


				Highly Corrosion-Resistant 316 Stainless Steel







								9/16"-12

								1"	13/16"	23/64"	Fully Threaded	Coarse	70,000	1	93190A740	0000


								1 1/2"	13/16"	23/64"	Fully Threaded	Coarse	70,000	1	93190A751	0000
								2"	13/16"	23/64"	Fully Threaded	Coarse	70,000	1	93190A753	0000
								2 1/2"	13/16"	23/64"	Partially Threaded	Coarse	70,000	1	92186A427	0000
								3"	13/16"	23/64"	Partially Threaded	Coarse	70,000	1	92186A429	0000

Steel Socket Head Screws

Fully Threaded

Partially Threaded

Made of alloy steel, these screws are the standard for high-strength fastening. Use them in high-load applications such as dies, presses, and heavy equipment. The deep, six-point socket keeps the hex key from slipping out and damaging the drive.

Length is measured from under the head.

Black-Oxide Alloy Steel—Best for dry environments since moisture will cause these screws to rust. They have a dark, matte appearance.

		Head
	Lg.	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







				9/16"-12

				1"	27/32"	9/16"	Fully Threaded	Coarse	170,000	1	91251A753	00000


				1 1/4"	27/32"	9/16"	Fully Threaded	Coarse	170,000	1	91251A755	0000
				1 1/2"	27/32"	9/16"	Fully Threaded	Coarse	170,000	1	91251A757	0000
				1 3/4"	27/32"	9/16"	Fully Threaded	Coarse	170,000	1	91251A758	0000
				2"	27/32"	9/16"	Fully Threaded	Coarse	170,000	1	91251A759	0000
				2 1/4"	27/32"	9/16"	Partially Threaded	Coarse	170,000	1	91251A761	0000
				2 1/2"	27/32"	9/16"	Partially Threaded	Coarse	170,000	1	91251A762	0000
				2 3/4"	27/32"	9/16"	Partially Threaded	Coarse	170,000	1	91251A763	0000
				3 1/2"	27/32"	9/16"	Partially Threaded	Coarse	170,000	1	91251A972	0000
				4"	27/32"	9/16"	Partially Threaded	Coarse	170,000	1	91251A764	0000

Stainless Steel Socket Head Screws


Fully Threaded	Partially Threaded

These screws won't rust or corrode when exposed to moisture and chemicals. Their deep, six-point socket keeps hex keys from slipping out and damaging the drive.

Length is measured from under the head.

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

		Head
	Lg.	Dia.	Ht.	Threading	Thread Spacing	Tensile Strength, psi	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				9/16"-12

				1"	27/32"	9/16"	Fully Threaded	Coarse	70,000	1	92196A693	000000


				1 1/2"	27/32"	9/16"	Fully Threaded	Coarse	70,000	1	92196A694	00000
				2"	27/32"	9/16"	Fully Threaded	Coarse	70,000	1	92196A695	00000
				2 1/2"	27/32"	9/16"	Partially Threaded	Coarse	70,000	1	90696A234	0000
				3"	27/32"	9/16"	Partially Threaded	Coarse	70,000	1	90696A235	0000
				4"	27/32"	9/16"	Partially Threaded	Coarse	70,000	1	90696A236	0000
				5"	27/32"	9/16"	Partially Threaded	Coarse	70,000	1	90696A237	0000
				6"	27/32"	9/16"	Partially Threaded	Coarse	70,000	1	90696A238	00000

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







	9/16"-12

	3 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	99086A377	000000


	Steel







					9/16"-12

					4"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A484	0000


					6"	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98750A485	0000
					1 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A500	0000
					2 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A162	00000
					3 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A612	00000
					6 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A712	00000
					12 ft.	125,000	ASTM Grade B7	Rockwell C35	ASTM A193	98957A012	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.

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

	Hardness	Specs. Met		Each
Steel







	9/16"-12

	4"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A264	000000


	6"	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A265	00000
	1 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A266	00000
	3 ft.	150,000	ASTM Grade BD	Rockwell C33	ASTM A354 Grade BD	90322A267	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







	9/16"-12

	2	50,000	Rockwell B61	1	90034A034	00000


	3	50,000	Rockwell B61	1	98841A034	00000
	6	50,000	Rockwell B61	1	98914A034	00000


	Steel







					9/16"-12

					2	50,000	Rockwell B61	1	98790A065	0000


					3	50,000	Rockwell B61	1	98837A062	0000
					6	50,000	Rockwell B61	1	98910A052	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







	9/16"-12

	4"	70,000	—	Rockwell B70	—	1	95412A344	00000


	6"	70,000	—	Rockwell B70	—	1	95412A345	0000
	1 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A580	00000
	1 ft.	70,000	—	Rockwell B70	—	1	98804A121	00000
	2 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A585	00000
	2 ft.	70,000	—	Rockwell B70	—	1	98805A209	00000
	3 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A590	00000
	3 ft.	70,000	—	Rockwell B70	—	1	98847A034	00000
	6 ft.	75,000	ASTM Grade B8	Not Rated	ASTM A193	1	91187A595	00000
	6 ft.	70,000	—	Rockwell B70	—	1	98920A034	00000

Eyebolts—For Lifting

Create a secure attachment point for hooks, shackles, and other lifting equipment. Also known as machinery eyebolts, these eyebolts are used to lift heavy machines and materials. They have a closed eye that won’t bend under strain.

Warning: Never use to lift people or items over people. Capacities listed are for vertical lifting only.

Steel


With Shoulder	Without Shoulder

With Shoulder—Use for lifting at angles up to 45° or for vertical lifting. Because angular lifting significantly reduces the eyebolt’s capacity, we recommend hoist rings for heavy loads.

Without Shoulder—For vertical lifting only.

	Thread							With Shoulder			Without Shoulder
	Size	Lg.	Shank Lg.	Eye Dia.	Vert. Cap., lb.	Specs. Met	Threading	Overall Lg.		Each	Overall Lg.		Each
Closed Eye



		9/16"-12	1 5/16"	1 5/8"	1 9/32"	3,000	ASTM A489	Fully Threaded	—	———	0	3 3/4"	3013T51	00000


		9/16"-12	1 3/8"	1 5/8"	1 9/32"	3,000	ASTM A489	Fully Threaded	4 3/16"	3014T51	000000	—	———	0
		9/16"-12	2"	2"	1 1/4"	3,200	—	Fully Threaded	4 1/2"	3014T915	00000	4 1/4"	3013T915	00000
		9/16"-12	3"	3"	1 1/4"	3,200	—	Fully Threaded	5 1/2"	3014T916	00000	5 1/4"	3013T916	00000
		9/16"-12	4"	4"	1 1/4"	3,200	—	Fully Threaded	6 1/2"	3014T917	00000	—	———	0

Zinc-Plated Steel

With

Shoulder

Zinc-plated steel eyebolts offer good corrosion resistance.

With Shoulder—Use for lifting at angles up to 45° or for vertical lifting. Because angular lifting significantly reduces the eyebolt’s capacity, we recommend hoist rings for heavy loads.

	Thread						With Shoulder
	Size	Lg.	Shank Lg.	Eye Dia.	Vert. Cap., lb.	Threading	Overall Lg.		Each
Closed Eye



		9/16"-12	1 5/8"	1 5/8"	1 1/4"	3,200	Fully Threaded	4 1/2"	3014T147	000000


		9/16"-12	2"	2"	1 1/4"	3,200	Fully Threaded	4 1/2"	3014T12	00000
		9/16"-12	3"	3"	1 1/4"	3,200	Fully Threaded	5 1/2"	3014T121	00000
		9/16"-12	4"	4"	1 1/4"	3,200	Fully Threaded	6 1/2"	3014T122	00000

Stainless Steel Cup-Tip Set Screws

These corrosion-resistant cup-tip screws grip parts tightly. Made of stainless steel, they won't rust, but they're not as strong as alloy steel. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

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

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







	9/16"-12

	1/2"	9/32"	Rockwell B80	ASME B18.3	1	92311A388	00000


	5/8"	9/32"	Rockwell B80	ASME B18.3	1	92311A389	0000
	3/4"	9/32"	Rockwell B80	ASME B18.3	1	92311A390	0000
	1"	9/32"	Rockwell B80	ASME B18.3	1	92311A391	0000

Steel Cup-Tip Set Screws

Made of alloy steel, these screws are strong enough to hold components without wearing down. The tip has thin edges that dig into surfaces for a secure hold. They often lock gears, pulleys, and other transmission components onto shafts.

Black-Oxide Alloy Steel—These screws have a dark matte finish that offers minimal corrosion resistance, so they're best for dry environments.

	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Alloy Steel







	9/16"-12

	1/2"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A275	00000


	5/8"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A279	0000
	3/4"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A283	0000
	1"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A287	0000
	1 1/4"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A291	0000
	1 1/2"	1/4"	Rockwell C45	ASME B18.3, ASTM F912	1	91375A295	0000

Nylon-Coated Eyebolts—For Lifting

Route wire and cable through the smooth eye without snagging.

Note: Capacities listed are for vertical lifting only. Eyebolts with shoulder can be used for angular lifting up to 45°, but the capacities will be significantly reduced. For angular lifting, we recommend Hoist Rings. Eyebolts without shoulder are for vertical lifting only.

Warning: Never use to lift people or items over people.

Nylon-Coated Steel

Closed Eye

With Shoulder

Closed Eye—Closed eyes are stronger than bent-closed eyes.

	Thread							With Shoulder
	Size	Lg.	Shank Lg.	Eye Dia.	Vert. Cap., lb.	Threading	Temp. Range, ° F	Overall Lg.		Each
Closed Eye



		9/16"-12	1 5/8"	1 5/8"	1 1/4"	3,200	Fully Threaded	30 to 275	4 1/2"	7691T52	000000