DIN 923 Shoulder Screws | McMaster-Carr

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EAR99

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174 Products

Performance

Corrosion Resistant

Resist corrosion from moisture, chemicals, and harsh weather

114 products

Relative Thread Length

Short

Use in thin materials or when you don't want threads to extend too far

32 products

Socket Head Profile

Standard

The most common profile for shoulder screws

92 products

Low

Fit into shallow holes and in low-clearance areas around moving parts

99 products

Steel Low-Profile Slotted Precision Shoulder Screws

Fit these slotted screws into shallow holes and low-clearance spaces where smooth and accurate movement is required. The head is about one-half to two-thirds the height of standard-profile screw heads, so they're not suited for high-strength fastening. They are stronger than their stainless steel counterparts, but weaker than standard-profile screws. Engineered for tight tolerances, their shoulder diameters are twice as precise as those on standard-fit screws. Hand-tighten with a slotted screwdriver to avoid damaging the drive.

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

				Head, mm
	Shoulder Lg., mm	Thread Size	Thread Lg., mm	Dia.	Ht.	Tensile Strength, psi	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				4 mm Diameter Shoulder (-0.03 mm to 0 mm Tolerance)

				2	M3 × 0.5 mm	4.5	7	1.8	58,000	DIN 923	10	97505A101	00000


				3	M3 × 0.5 mm	4.5	7	1.8	58,000	DIN 923	10	97505A102	0000
				4	M3 × 0.5 mm	4.5	7	1.8	58,000	DIN 923	10	97505A103	0000
				5	M3 × 0.5 mm	4.5	7	1.8	58,000	DIN 923	10	97505A104	0000
				6	M3 × 0.5 mm	4.5	7	1.8	58,000	DIN 923	10	97505A105	0000
				8	M3 × 0.5 mm	4.5	7	1.8	58,000	DIN 923	10	97505A106	0000
				10	M3 × 0.5 mm	4.5	7	1.8	58,000	DIN 923	10	97505A107	00000




						5.5 mm Diameter Shoulder (-0.03 mm to 0 mm Tolerance)

						2.5	M4 × 0.7 mm	6	8.5	2.4	58,000	DIN 923	10	97505A108	0000


						3	M4 × 0.7 mm	6	8.5	2.4	58,000	DIN 923	10	97505A109	0000
						4	M4 × 0.7 mm	6	8.5	2.4	58,000	DIN 923	10	97505A110	0000
						5	M4 × 0.7 mm	6	8.5	2.4	58,000	DIN 923	10	97505A111	0000
						6	M4 × 0.7 mm	6	8.5	2.4	58,000	DIN 923	10	97505A112	00000
						8	M4 × 0.7 mm	6	8.5	2.4	58,000	DIN 923	10	97505A113	0000
						10	M4 × 0.7 mm	6	8.5	2.4	58,000	DIN 923	10	97505A114	0000
						12	M4 × 0.7 mm	6	8.5	2.4	58,000	DIN 923	10	97505A115	0000
						16	M4 × 0.7 mm	6	8.5	2.4	58,000	DIN 923	10	97505A116	0000




								7 mm Diameter Shoulder (-0.036 mm to 0 mm Tolerance)

								2.5	M5 × 0.8 mm	7	11	2.7	58,000	DIN 923	10	97505A117	0000


								3	M5 × 0.8 mm	7	11	2.7	58,000	DIN 923	10	97505A118	0000
								4	M5 × 0.8 mm	7	11	2.7	58,000	DIN 923	10	97505A119	00000
								5	M5 × 0.8 mm	7	11	2.7	58,000	DIN 923	10	97505A120	0000
								6	M5 × 0.8 mm	7	11	2.7	58,000	DIN 923	10	97505A121	0000
								8	M5 × 0.8 mm	7	11	2.7	58,000	DIN 923	10	97505A122	00000
								10	M5 × 0.8 mm	7	11	2.7	58,000	DIN 923	10	97505A123	00000
								12	M5 × 0.8 mm	7	11	2.7	58,000	DIN 923	10	97505A124	0000
								16	M5 × 0.8 mm	7	11	2.7	58,000	DIN 923	10	97505A125	00000




										8 mm Diameter Shoulder (-0.036 mm to 0 mm Tolerance)

										3	M6 × 1 mm	9	13	3.1	58,000	DIN 923	10	97505A126	00000


										4	M6 × 1 mm	9	13	3.1	58,000	DIN 923	10	97505A127	0000
										5	M6 × 1 mm	9	13	3.1	58,000	DIN 923	10	97505A128	00000
										6	M6 × 1 mm	9	13	3.1	58,000	DIN 923	10	97505A129	00000
8										M6 × 1 mm	9	13	3.1	58,000	DIN 923	10	97505A151	00000
10	M6 × 1 mm									9	13	3.1	58,000	DIN 923	10	97505A131	00000
12	M6 × 1 mm									9	13	3.1	58,000	DIN 923	10	97505A132	0000
16	M6 × 1 mm									9	13	3.1	58,000	DIN 923	10	97505A133	0000
20	M6 × 1 mm									9	13	3.1	58,000	DIN 923	5	97505A134	00000




		10 mm Diameter Shoulder (-0.036 mm to 0 mm Tolerance)

		4	M8 × 1.25 mm							11	16	3.8	58,000	DIN 923	5	97505A135	00000


		5	M8 × 1.25 mm							11	16	3.8	58,000	DIN 923	5	97505A136	0000
		6	M8 × 1.25 mm							11	16	3.8	58,000	DIN 923	5	97505A137	00000
		8	M8 × 1.25 mm							11	16	3.8	58,000	DIN 923	5	97505A138	0000
		10	M8 × 1.25 mm							11	16	3.8	58,000	DIN 923	5	97505A139	00000
		12	M8 × 1.25 mm							11	16	3.8	58,000	DIN 923	5	97505A140	00000
		16	M8 × 1.25 mm							11	16	3.8	58,000	DIN 923	5	97505A141	0000
		20	M8 × 1.25 mm							11	16	3.8	58,000	DIN 923	5	97505A142	00000
		25	M8 × 1.25 mm	11						16	3.8	58,000	DIN 923	5	97505A143	00000




				13 mm Diameter Shoulder (-0.036 mm to 0 mm Tolerance)

				10	M10 × 1.5 mm					13.5	20	4.6	58,000	DIN 923	1	97505A144	0000


				12	M10 × 1.5 mm					13.5	20	4.6	58,000	DIN 923	1	97505A145	00000
				16	M10 × 1.5 mm					13.5	20	4.6	58,000	DIN 923	1	97505A146	0000
				20	M10 × 1.5 mm					13.5	20	4.6	58,000	DIN 923	1	97505A147	0000
				25	M10 × 1.5 mm					13.5	20	4.6	58,000	DIN 923	1	97505A148	0000

Shoulder Shims

Shoulder

Shortening

Shoulder Shortening—Pare down the shoulder on screws or tighten the screw's hold. Stack multiple shims to get the exact spacing you need.

		Shoulder Shortening
	Thk.	For Screw Size	Pkg. Qty.		Pkg.
Spring Steel







				For 8 mm Diameter Shoulder

				0.005"	M8	5	92927A555	00000


				0.01"	M8	5	92927A559	0000
				0.015"	M8	10	92927A912	0000
				0.02"	M8	10	92927A918	00000
				0.031"	M8	10	92927A925	0000
				0.06"	M8	5	92927A932	0000




						For 10 mm Diameter Shoulder

						0.005"	M10	5	92927A574	0000


						0.01"	M10	5	92927A578	0000
						0.015"	M10	10	92927A913	00000
						0.02"	M10	10	92927A919	00000
						0.031"	M10	10	92927A926	00000
						0.06"	M10	5	92927A933	0000

Stainless Steel Slotted Precision Shoulder Screws

Use these slotted screws in assemblies that require smooth, accurate movement. They're engineered for tight tolerances, with shoulder diameters twice as precise as those on standard-fit screws. They're made of stainless steel, so they won't rust. Hand-tighten with a slotted screwdriver to avoid damaging the drive.

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

				Head, mm				Certificate			Each
	Shoulder Lg., mm	Thread Size	Thread Lg., mm	Dia.	Ht.	Tensile Strength, psi	Specs. Met	Type	Form		1-4	5-Up
18-8 Stainless Steel







				2 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

				0.5	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	—	—	90270A211	00000	00000


				1	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	—	—	90270A212	0000	0000
				1.5	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	—	—	90270A213	0000	0000
				2	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	—	—	90270A214	0000	0000
				2.5	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	—	—	90270A215	0000	0000
				3	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	—	—	90270A216	0000	0000
				4	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	Material Certificate	Digital	90270A217	0000	0000
				5	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	—	—	90270A218	0000	0000
				6	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	Material Certificate	Digital	90270A219	0000	0000
				8	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	—	—	90270A221	0000	0000
				10	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	—	—	90270A222	0000	0000


				12	M1.6 × 0.35 mm	3.2	3	1	Not Rated	DIN 923	Material Certificate	Digital	90270A223	0000	0000




						4 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

						4	M3 × 0.5 mm	4	6	3	70,000	DIN 923	—	—	90270A651	0000	0000


						5	M3 × 0.5 mm	4	6	3	70,000	DIN 923	—	—	90270A652	0000	0000
						6	M3 × 0.5 mm	4	6	3	70,000	DIN 923	—	—	90270A653	0000	0000
						8	M3 × 0.5 mm	4	6	3	70,000	DIN 923	—	—	90270A654	0000	0000
						10	M3 × 0.5 mm	4	6	3	70,000	DIN 923	—	—	90270A655	0000	0000
						12	M3 × 0.5 mm	4	6	3	70,000	DIN 923	—	—	90270A711	0000	0000
						16	M3 × 0.5 mm	4	6	3	70,000	DIN 923	Material Certificate	Digital	90270A712	0000	0000
						20	M3 × 0.5 mm	4	6	3	70,000	DIN 923	Material Certificate	Digital	90270A713	0000	0000




								5 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

								4	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A656	0000	0000


								5	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A657	0000	0000
								6	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A658	0000	0000
								8	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A659	0000	0000
								10	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A660	0000	0000
								12	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A661	0000	0000
								14	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A662	0000	0000
								16	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A663	0000	0000
								20	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A664	0000	0000
								25	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A665	0000	0000
								30	M4 × 0.7 mm	5	8	4	70,000	DIN 923	—	—	90270A666	0000	0000




6 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

4	M5 × 0.8 mm									6	10	5	70,000	DIN 923	—	—	90270A672	0000	0000


5	M5 × 0.8 mm									6	10	5	70,000	DIN 923	—	—	90270A673	0000	0000
6	M5 × 0.8 mm	6								10	5	70,000	DIN 923	—	—	90270A675	0000	0000
8	M5 × 0.8 mm	6	10							5	70,000	DIN 923	—	—	90270A676	0000	0000
10	M5 × 0.8 mm	6	10							5	70,000	DIN 923	—	—	90270A677	0000	0000
12	M5 × 0.8 mm	6	10							5	70,000	DIN 923	—	—	90270A678	0000	0000
14	M5 × 0.8 mm	6	10							5	70,000	DIN 923	—	—	90270A679	0000	0000
16	M5 × 0.8 mm	6	10							5	70,000	DIN 923	—	—	90270A680	0000	0000
20	M5 × 0.8 mm	6	10							5	70,000	DIN 923	—	—	90270A681	0000	0000
25	M5 × 0.8 mm	6	10							5	70,000	DIN 923	Material Certificate	Digital	90270A682	0000	0000
30	M5 × 0.8 mm	6	10							5	70,000	DIN 923	—	—	90270A683	0000	0000




		8 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

		6	M6 × 1 mm							11	12	6	70,000	DIN 923	—	—	90270A684	0000	0000


		8	M6 × 1 mm							11	12	6	70,000	DIN 923	—	—	90270A685	0000	0000
		10	M6 × 1 mm							11	12	6	70,000	DIN 923	—	—	90270A541	0000	0000
		12	M6 × 1 mm							11	12	6	70,000	DIN 923	—	—	90270A686	0000	0000
		16	M6 × 1 mm							11	12	6	70,000	DIN 923	—	—	90270A687	0000	0000
		20	M6 × 1 mm							11	12	6	70,000	DIN 923	—	—	90270A688	0000	0000




				10 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

				8	M8 × 1.25 mm					12	14	7	70,000	DIN 923	—	—	90270A693	00000	00000


				10	M8 × 1.25 mm					12	14	7	70,000	DIN 923	—	—	90270A694	00000	00000
				12	M8 × 1.25 mm					12	14	7	70,000	DIN 923	—	—	90270A695	00000	00000
				16	M8 × 1.25 mm					12	14	7	70,000	DIN 923	—	—	90270A696	00000	00000




										12 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

						8	M10 × 1.5 mm			16	20	8	70,000	DIN 923	—	—	90270A701	00000	00000


						10	M10 × 1.5 mm			16	20	8	70,000	DIN 923	Material Certificate	Digital	90270A702	00000	00000
						12	M10 × 1.5 mm			16	20	8	70,000	DIN 923	—	—	90270A697	00000	00000
						16	M10 × 1.5 mm			16	20	8	70,000	DIN 923	—	—	90270A699	00000	00000
						20	M10 × 1.5 mm			16	20	8	70,000	DIN 923	—	—	90270A698	00000	00000
						25	M10 × 1.5 mm			16	20	8	70,000	DIN 923	—	—	90270A700	00000	00000

Shoulder Shims

Shoulder

Shortening

Shoulder Shortening—Pare down the shoulder on screws or tighten the screw's hold. Stack multiple shims to get the exact spacing you need.

		Shoulder Shortening
	Thk.	For Screw Size	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				For 4 mm Diameter Shoulder

				0.005"	M4	10	91437A401	000000


				0.01"	M4	10	91437A402	00000
				0.031"	M4	10	91437A403	00000




						For 5 mm Diameter Shoulder

						0.005"	M5	10	91437A404	00000


						0.01"	M5	10	91437A405	00000
						0.031"	M5	10	91437A406	00000




								For 6 mm Diameter Shoulder

								0.005"	M6	10	91437A155	00000


								0.01"	M6	10	91437A162	00000
								0.015"	M6	10	91437A166	00000
								0.02"	M6	10	91437A171	00000
								0.025"	M6	10	91437A176	00000
								0.031"	M6	10	91437A181	00000
								0.062"	M6	5	91437A188	0000




										For 8 mm Diameter Shoulder

										0.005"	M8	10	91437A248	00000


										0.01"	M8	10	91437A255	00000
										0.015"	M8	10	91437A263	00000
										0.02"	M8	10	91437A269	00000
										0.025"	M8	10	91437A274	00000
										0.031"	M8	5	91437A278	0000
										0.062"	M8	10	91437A282	00000




												For 10 mm Diameter Shoulder

												0.005"	M10	10	91437A352	00000


0.01"												M10	10	91437A357	00000
0.015"	M10											10	91437A361	00000
0.02"	M10											10	91437A366	00000
0.025"	M10											10	91437A370	00000
0.031"	M10											5	91437A374	00000
0.062"	M10	10										91437A377	00000




		For 12 mm Diameter Shoulder

		0.005"	M12									10	91437A448	00000


		0.01"	M12									10	91437A457	00000
		0.015"	M12									10	91437A462	00000
		0.02"	M12	5								91437A468	0000
		0.025"	M12	5	91437A473							0000
		0.031"	M12	5	91437A478							00000
		0.062"	M12	10	91437A483							00000

Stainless Steel Low-Profile Slotted Precision Shoulder Screws

Fit these slotted screws into tight spaces in corrosive environments. The head is about one-half to two-thirds the height of standard-profile screw heads, so they're not suited for high-strength fastening. They are engineered to tight tolerances for assemblies that require smooth and accurate movement, with shoulder diameters twice as precise as those on standard-fit screws. Hand-tighten with a slotted screwdriver to avoid damaging the drive.

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

				Head, mm				Certificate			Each
	Shoulder Lg., mm	Thread Size	Thread Lg., mm	Dia.	Ht.	Tensile Strength, psi	Specs. Met	Type	Form		1-4	5-Up
18-8 Stainless Steel







				2.5 mm Diameter Shoulder (-0.025 mm to 0 mm Tolerance)

				2	M1.6 × 0.35 mm	2.5	4	1	70,000	DIN 923	Material Certificate	Digital	97307A111	00000	00000


				4	M1.6 × 0.35 mm	2.5	4	1	70,000	DIN 923	—	—	97307A112	0000	0000
				5	M1.6 × 0.35 mm	2.5	4	1	70,000	DIN 923	—	—	97307A113	0000	0000




						4 mm Diameter Shoulder (-0.03 mm to 0 mm Tolerance)

						4	M3 × 0.5 mm	4.5	7	1.8	70,000	DIN 923	—	—	97307A114	0000	0000


						6	M3 × 0.5 mm	4.5	7	1.8	70,000	DIN 923	—	—	97307A115	0000	0000
						8	M3 × 0.5 mm	4.5	7	1.8	70,000	DIN 923	—	—	97307A116	0000	0000
						10	M3 × 0.5 mm	4.5	7	1.8	70,000	DIN 923	—	—	97307A117	0000	0000




								5.5 mm Diameter Shoulder (-0.03 mm to 0 mm Tolerance)

								6	M4 × 0.7 mm	6	8.5	2.4	70,000	DIN 923	—	—	97307A118	0000	0000


								10	M4 × 0.7 mm	6	8.5	2.4	70,000	DIN 923	—	—	97307A119	0000	0000




										7 mm Diameter Shoulder (-0.036 mm to 0 mm Tolerance)

										6	M5 × 0.8 mm	7	11	2.7	70,000	DIN 923	—	—	97307A120	00000	0000


										10	M5 × 0.8 mm	7	11	2.7	70,000	DIN 923	—	—	97307A121	00000	0000
										16	M5 × 0.8 mm	7	11	2.7	70,000	DIN 923	—	—	97307A122	00000	0000




												8 mm Diameter Shoulder (-0.036 mm to 0 mm Tolerance)

												6	M6 × 1 mm	9	13	3.1	70,000	DIN 923	—	—	97307A123	00000	0000


												10	M6 × 1 mm	9	13	3.1	70,000	DIN 923	—	—	97307A124	00000	0000
												16	M6 × 1 mm	9	13	3.1	70,000	DIN 923	—	—	97307A125	00000	00000




														10 mm Diameter Shoulder (-0.036 mm to 0 mm Tolerance)

6														M8 × 1.25 mm	11	16	3.8	70,000	DIN 923	Material Certificate	Digital	97307A126	00000	00000


10	M8 × 1.25 mm													11	16	3.8	70,000	DIN 923	—	—	97307A127	00000	00000
16	M8 × 1.25 mm													11	16	3.8	70,000	DIN 923	—	—	97307A128	00000	00000
25	M8 × 1.25 mm	11												16	3.8	70,000	DIN 923	—	—	97307A129	00000	00000




		13 mm Diameter Shoulder (-0.043 mm to 0 mm Tolerance)

		10	M10 × 1.5 mm											13.5	20	4.6	70,000	DIN 923	Material Certificate	Digital	97307A130	00000	00000


		16	M10 × 1.5 mm											13.5	20	4.6	70,000	DIN 923	—	—	97307A131	00000	00000
		25	M10 × 1.5 mm											13.5	20	4.6	70,000	DIN 923	Material Certificate	Digital	97307A132	00000	00000

Shoulder Shims

Shoulder

Shortening

Shoulder Shortening—Pare down the shoulder on screws or tighten the screw's hold. Stack multiple shims to get the exact spacing you need.

		Shoulder Shortening
	Thk.	For Screw Size	Pkg. Qty.		Pkg.
18-8 Stainless Steel







				For 4 mm Diameter Shoulder

				0.005"	M4	10	91437A401	000000


				0.01"	M4	10	91437A402	00000
				0.031"	M4	10	91437A403	00000




						For 8 mm Diameter Shoulder

						0.005"	M8	10	91437A248	00000


						0.01"	M8	10	91437A255	00000
						0.015"	M8	10	91437A263	00000
						0.02"	M8	10	91437A269	00000
						0.025"	M8	10	91437A274	00000
						0.031"	M8	5	91437A278	0000
						0.062"	M8	10	91437A282	00000




								For 10 mm Diameter Shoulder

								0.005"	M10	10	91437A352	00000


								0.01"	M10	10	91437A357	00000
								0.015"	M10	10	91437A361	00000
								0.02"	M10	10	91437A366	00000
								0.025"	M10	10	91437A370	00000
								0.031"	M10	5	91437A374	00000
								0.062"	M10	10	91437A377	00000