M22 Screws | McMaster-Carr

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Hardness Hardness

Rockwell B49

	Head Diameter Head Diameter

33mm

	Socket Head Profile Socket Head Profile

	Standard

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About Threaded Studs and Rods

About Hex Head Screws and Bolts

About Socket Head Screws

Fully Threaded

Partially Threaded

With a tensile strength of 170,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Length is measured from under the head.

Black-oxide steel screws are mildly corrosion resistant in dry environments.

Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Screws that meet ASME B18.3, ASME B18.3M, ISO 21269, and ISO 4762 (formerly DIN 912) comply with specifications for dimensional standards.

For technical drawings and 3-D models, click on a part number.

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M22 × 2.5 mm
Black-Oxide Class 12.9 Alloy Steel
40	Fully Threaded	__	Coarse	33	22	17	170,000	DIN 912, ISO 4762	1	000000000	00000
50	Fully Threaded	__	Coarse	33	22	17	170,000	DIN 912, ISO 4762	1	000000000	0000
60	Fully Threaded	__	Coarse	33	22	17	170,000	DIN 912, ISO 4762	1	000000000	0000
70	Fully Threaded	__	Coarse	33	22	17	170,000	DIN 912, ISO 4762	1	000000000	0000
80	Partially Threaded	56	Coarse	33	22	17	170,000	DIN 912, ISO 4762	1	000000000	0000
100	Partially Threaded	56	Coarse	33	22	17	170,000	DIN 912, ISO 4762	1	000000000	0000
110	Partially Threaded	56	Coarse	33	22	17	170,000	DIN 912, ISO 4762	1	000000000	0000
120	Partially Threaded	56	Coarse	33	22	17	170,000	DIN 912, ISO 4762	1	000000000	0000

18-8 Stainless Steel Socket Head Screws

Fully Threaded

Partially Threaded

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.

Metric screws are also known as A2 stainless steel screws.

Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch.

Screws that meet ASME B1.1, ASME B18.3, ISO 21269, and ISO 4762 (formerly DIN 912) comply with standards for dimensions.

For technical drawings and 3-D models, click on a part number.

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M22 × 2.5 mm
18-8 Stainless Steel
50	Fully Threaded	__	Coarse	33	22	17 mm	70,000	DIN 912	1	000000000	000000
70	Partially Threaded	56	Coarse	33	22	17 mm	70,000	DIN 912	1	000000000	00000
90	Partially Threaded	56	Coarse	33	22	17 mm	70,000	DIN 912	1	000000000	00000
120	Partially Threaded	56	Coarse	33	22	17 mm	70,000	DIN 912	1	000000000	00000
130	Partially Threaded	56	Coarse	33	22	17 mm	70,000	DIN 912	1	000000000	00000

Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Fully Threaded

These Class 8.8 steel screws are suitable for fastening most machinery and equipment. Dimensions meet ISO (formerly DIN) specifications. Length is measured from under the head.

Zinc-plated steel screws resist corrosion in wet environments. Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the pitch.

For technical drawings and 3-D models, click on a part number.

			Head
Lg., mm	Threading	Thread Spacing	Wd., mm	Ht., mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
Zinc-Plated Class 8.8 Steel
M22 × 2.5 mm
40	Fully Threaded	Coarse	32	14	110,000	ISO 4017, DIN 933	1	000000000	00000
45	Fully Threaded	Coarse	32	14	110,000	ISO 4017, DIN 933	1	000000000	0000
50	Fully Threaded	Coarse	32	14	110,000	ISO 4017, DIN 933	1	000000000	0000
60	Fully Threaded	Coarse	32	14	110,000	ISO 4017, DIN 933	1	000000000	0000
70	Fully Threaded	Coarse	32	14	110,000	ISO 4017, DIN 933	1	000000000	0000
80	Fully Threaded	Coarse	32	14	110,000	ISO 4017, DIN 933	1	000000000	0000

18-8 Stainless Steel Hex Head Screws

Fully Threaded

Partially Threaded

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.

Metric screws are also known as A2 stainless steel screws.

Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Screws that meet ASME or ISO (formerly DIN) specifications comply with these dimensional standards.

For technical drawings and 3-D models, click on a part number.

				Head
Lg.	Threading	Min. Thread Lg.	Thread Spacing	Wd.	Ht.	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel
M22 × 2.5 mm
50mm	Fully Threaded	__	Coarse	32mm	14mm	100,000	ISO 4017, DIN 933	1	000000000	00000
60mm	Fully Threaded	__	Coarse	32mm	14mm	100,000	ISO 4017, DIN 933	1	000000000	00000
75mm	Fully Threaded	__	Coarse	34mm	14mm	70,000	DIN 933	1	000000000	0000
80mm	Fully Threaded	__	Coarse	32mm	14mm	100,000	ISO 4017, DIN 933	1	000000000	00000
80mm	Partially Threaded	50mm	Coarse	32mm	14mm	70,000	DIN 931	1	000000000	0000
100mm	Fully Threaded	__	Coarse	32mm	14mm	100,000	ISO 4017, DIN 933	1	000000000	00000
100mm	Partially Threaded	50mm	Coarse	32mm	14mm	70,000	DIN 931	1	000000000	0000
110mm	Partially Threaded	50mm	Coarse	32mm	14mm	70,000	DIN 931	1	000000000	0000
120mm	Partially Threaded	50mm	Coarse	32mm	14mm	70,000	DIN 931	1	000000000	0000
130mm	Partially Threaded	56mm	Coarse	32mm	14mm	70,000	DIN 931	1	000000000	00000
140mm	Partially Threaded	56mm	Coarse	32mm	14mm	70,000	DIN 931	1	000000000	00000
150mm	Partially Threaded	56mm	Coarse	32mm	14mm	70,000	DIN 931	1	000000000	00000
170mm	Partially Threaded	56mm	Coarse	32mm	14mm	70,000	DIN 931	1	000000000	00000
180mm	Partially Threaded	56mm	Coarse	32mm	14mm	70,000	DIN 931	1	000000000	00000
200mm	Partially Threaded	56mm	Coarse	32mm	14mm	70,000	DIN 931	1	000000000	00000

Metric High-Strength Steel Heavy Hex Head Screws for Structural Applications

Designed for construction and exterior building applications, these metric screws are often used to join I-beams and scaffolding. Their partial threading leaves an unthreaded portion that is strong enough to stand up to the sideways forces of joints. Made of Class 10.9 steel, these screws are at least 25% stronger than our medium-strength steel heavy hex head screws. They also have a hot-dipped galvanized finish that makes them 10 times more corrosion resistant than zinc plating, so they won't rust in wet environments. However, this finish is thicker than other finishes, so they should be used with DIN 6916 structural washers and DIN 6915 structural hex nuts. All meet ISO 7412 (formerly DIN 6914), an international standard for screw dimensions.

					Head
Lg., mm	Threading	Thread Spacing	Thread Lg., mm	Grip Lg., mm	Wd., mm	Ht., mm	Tensile Strength, psi	Specifications Met		Each
Hot-Dipped Galvanized Class 10.9 Steel
M22 × 2.5 mm
60	Partially Threaded	Coarse	32	28	36	14	150,000	DIN 6914, ISO 7412	000000000	000000
65	Partially Threaded	Coarse	32	33	36	14	150,000	DIN 6914, ISO 7412	000000000	00000
70	Partially Threaded	Coarse	32	38	36	14	150,000	DIN 6914, ISO 7412	000000000	00000
75	Partially Threaded	Coarse	32	43	36	14	150,000	DIN 6914, ISO 7412	000000000	00000
80	Partially Threaded	Coarse	32	48	36	14	150,000	DIN 6914, ISO 7412	000000000	00000
90	Partially Threaded	Coarse	34	56	36	14	150,000	DIN 6914, ISO 7412	000000000	00000
100	Partially Threaded	Coarse	34	66	36	14	150,000	DIN 6914, ISO 7412	000000000	00000
110	Partially Threaded	Coarse	34	76	36	14	150,000	DIN 6914, ISO 7412	000000000	00000
120	Partially Threaded	Coarse	34	86	36	14	150,000	DIN 6914, ISO 7412	000000000	00000
130	Partially Threaded	Coarse	34	96	36	14	150,000	DIN 6914, ISO 7412	000000000	00000

Metric Medium-Strength Steel Threaded Rods—Grade B7

These Grade B7 threaded rods meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks, valves, and flanges.

For technical drawings and 3-D models, click on a part number.

Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met		Each
M22
300 mm	2.5	125,000	Rockwell C35	ASTM A193, DIN 976	000000000	000000
1 m	2.5	125,000	Rockwell C35	ASTM A193, DIN 976	000000000	00000
2 m	2.5	125,000	Rockwell C35	ASTM A193, DIN 976	000000000	000000

Metric Fine-Thread Medium-Strength Steel Threaded Rods—Grade B7

Grade B7 threaded rods meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks, valves, and flanges.

For technical drawings and 3-D models, click on a part number.

Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met		Each
M22
300 mm	1.5	125,000	Rockwell C35	ASTM A193	000000000	000000
1 m	1.5	125,000	Rockwell C35	ASTM A193	000000000	000000

Medium-Strength Steel Threaded Rods—Class 8.8

An economical alternative to Grade B7 and Grade B16 threaded rods, these metric Class 8.8 rods are suitable for fastening most machinery and equipment.

Zinc-plated steel threaded rods resist corrosion in wet environments.

For technical drawings and 3-D models, click on a part number.

Zinc-Plated Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met		Each
M22
1 m	2.5	110,000	Rockwell C20	DIN 975	000000000	000000

Metric Fine-Thread Low-Strength Steel Threaded Rods

About half the strength of medium-strength steel threaded rods, use these for light duty hanging, mounting, and fastening.

For technical drawings and 3-D models, click on a part number.

Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met		Each
M22
150 mm	1.5	50,000	Rockwell B49	DIN 976	000000000	000000
300 mm	1.5	50,000	Rockwell B49	DIN 976	000000000	00000
1 m	1.5	50,000	Rockwell B49	DIN 976	000000000	00000

Metric Low-Strength Steel Threaded Rods

These threaded rods are about half the strength of medium-strength steel threaded rods for light duty hanging, mounting, and fastening.

Zinc-plated steel threaded rods are corrosion resistant in wet environments.

For technical drawings and 3-D models, click on a part number.

Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M22
1 m	2.5	50,000	Rockwell B49	DIN 976	1	000000000	000000
Zinc-Plated Steel
M22
300 mm	2.5	50,000	Rockwell B49	DIN 976	1	000000000	00000
1 m	2.5	50,000	Rockwell B49	DIN 976	1	000000000	00000

Metric High-Strength Steel Threaded Rods—Class 10.9

These Class 10.9 steel threaded rods are about 25% stronger than medium-strength steel rods.

For technical drawings and 3-D models, click on a part number.

Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met		Each
M22
50 mm	2.5	150,000	Rockwell C32	DIN 976	0000000	000000
100 mm	2.5	150,000	Rockwell C32	DIN 976	0000000	00000
150 mm	2.5	150,000	Rockwell C32	DIN 976	0000000	00000
200 mm	2.5	150,000	Rockwell C32	DIN 976	0000000	00000
300 mm	2.5	150,000	Rockwell C32	DIN 976	0000000	00000
500 mm	2.5	150,000	Rockwell C32	DIN 976	0000000	00000
1 m	2.5	150,000	Rockwell C32	DIN 976	0000000	00000

Metric Very-High-Strength Steel Threaded Rods—Class 12.9

Class 12.9 rods are about 20% stronger than Class 10.9 threaded rods and are for use in heavy machinery.

For technical drawings and 3-D models, click on a part number.

Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met		Each
M22
1 m	2.5	170,000	Rockwell C39	DIN 976	00000000	0000000

Metric 18-8 Stainless Steel Threaded Rods

These 18-8 stainless steel threaded rods have good chemical resistance and may be mildly magnetic.

For technical drawings and 3-D models, click on a part number.

18-8 Stainless Steel
Lg.	Thread Pitch, mm	Tensile Strength, psi	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M22
300 mm	2.5	70,000	Not Rated	DIN 976	1	000000000	000000
1 m	2.5	70,000	Not Rated	DIN 976	1	000000000	000000
2 m	2.5	70,000	Not Rated	DIN 976	1	000000000	000000

Setup Studs

Black-Oxide Steel

Secure setup clamps and fixtures to your machine table, or assemble heavy machines, such as engine mounts. These studs act as a pilot when connecting parts since they’re headless, which eases installation. Unlike a bolt, which has a head, they let you access parts from either end, but they require nuts to hold the part. Pair them with a T-slot or flanged nut when securing to a machine table. Or, put a nut on before your part to work as a float, allowing you to adjust the height of your part. The unthreaded middle is useful for gripping and adjusting. Also known as double-ended studs.

Steel studs are stronger than stainless steel studs. Black-oxide steel studs resist rusting in dry environments.

DIN studs meet dimensional and material requirements.

For technical drawings and 3-D models, click on a part number.

Metric—Black-Oxide Steel

Thread
Lg. (A), mm	Lg. (B), mm	Lg., mm	Min. Tensile Strength, psi	Specifications Met		Each
M22 × 2.5mm
45	31	100	100,000	DIN 6379	000000000	000000
122	31	200	100,000	DIN 6379	000000000	00000
180	31	315	100,000	DIN 6379	000000000	00000

About Threaded Studs and Rods

About Hex Head Screws and Bolts

About Socket Head Screws

Alloy Steel Socket Head Screws

18-8 Stainless Steel Socket Head Screws

Medium-Strength Metric Class 8.8 Steel Hex Head Screws

18-8 Stainless Steel Hex Head Screws

Metric High-Strength Steel Heavy Hex Head Screws for Structural Applications

Metric Medium-Strength Steel Threaded Rods—Grade B7

Metric Fine-Thread Medium-Strength Steel Threaded Rods—Grade B7

Medium-Strength Steel Threaded Rods—Class 8.8

Metric Fine-Thread Low-Strength Steel Threaded Rods

Metric Low-Strength Steel Threaded Rods

Metric High-Strength Steel Threaded Rods—Class 10.9

Metric Very-High-Strength Steel Threaded Rods—Class 12.9

Metric 18-8 Stainless Steel Threaded Rods

Setup Studs