7/32" Dowel Pins | McMaster-Carr

Precisely align machine parts and prevent movement during assembly. These dowel pins are machined to tight tolerances and have a uniform diameter for a snug fit. They can also be used as a pivot, shaft, or hinge to join moving components. Since dowel pins can be hard to remove, they are best suited for permanent fixtures that don't require frequent adjustments or disassembly.

Steel

High-Strength Alloy Steel—Our strongest, most wear-resistant pins, these won't bend or break from vibration. Use them for high-stress applications, such as mounting and aligning hydraulic cylinders and injection molds. They perform best in dry environments since moisture will cause them to rust.

	Min. Hardness	Pkg. Qty.		Pkg.
High-Strength Alloy Steel







	7/32" Diameter

	7/32"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A359	00000


	1/4"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A030	0000
	3/8"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A031	0000
	1/2"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A032	0000
	5/8"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A387	0000
	3/4"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A033	0000
	7/8"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A388	0000
	1"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A034	0000
	1 1/4"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A395	0000
	1 1/2"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A035	0000
	1 3/4"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A398	0000


	2"	0.0001" to 0.0003"	Not Rated	Rockwell C50	1	98381A036	0000

Corrosion-Resistant Stainless Steel

18-8 Stainless Steel—The choice for wet and outdoor environments. In addition to resisting rust, these pins also withstand mild chemicals such as cleaners and degreasers. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.

Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant pins, these hold up in just about any environment. They won't degrade from exposure to weather, salt water, and most chemicals. Like 18-8 stainless steel, they're strong enough to join most components but won't withstand stress and vibration as well as steel.

High-Strength Machinable 416 Stainless Steel—These pins hold their shape under stress and friction from moving parts. In addition to being the strongest stainless steel alloy, 416 is also the most machinable, so you can shape these pins to fit your hole. However, they are the least corrosion-resistant stainless steel option.

	Lg.	Min. Hardness	Pkg. Qty.		Pkg.
18-8 Stainless Steel







		7/32" Diameter

		7/32"	0" to 0.0002"	Not Rated	Not Rated	5	90145A740	000000


		1/4"	0" to 0.0002"	Not Rated	Not Rated	5	90145A744	00000
		3/8"	0" to 0.0002"	Not Rated	Not Rated	5	90145A761	00000
		1/2"	0" to 0.0002"	Not Rated	Not Rated	5	90145A766	00000
		5/8"	0" to 0.0002"	Not Rated	Not Rated	5	90145A771	00000
		3/4"	0" to 0.0002"	Not Rated	Not Rated	5	90145A773	00000
		7/8"	0" to 0.0002"	Not Rated	Not Rated	5	90145A779	00000
		1"	0" to 0.0002"	Not Rated	Not Rated	5	90145A788	00000
		1 1/4"	0" to 0.0002"	Not Rated	Not Rated	1	90145A789	0000
		1 1/2"	0" to 0.0002"	Not Rated	Not Rated	1	90145A791	0000
		1 3/4"	0" to 0.0002"	Not Rated	Not Rated	1	90145A800	0000


		Highly Corrosion-Resistant 316 Stainless Steel







						7/32" Diameter

						7/32"	0" to 0.0002"	Not Rated	Not Rated	5	97395A682	00000


						3/8"	0" to 0.0002"	Not Rated	Not Rated	1	97395A686	0000
						1/2"	0" to 0.0002"	Not Rated	Not Rated	1	97395A693	0000
						5/8"	0" to 0.0002"	Not Rated	Not Rated	1	97395A694	0000
						3/4"	0" to 0.0002"	Not Rated	Not Rated	1	97395A702	0000
						7/8"	0" to 0.0002"	Not Rated	Not Rated	1	97395A707	0000
						1"	0" to 0.0002"	Not Rated	Not Rated	1	97395A717	0000
						1 1/4"	0" to 0.0002"	Not Rated	Not Rated	1	97395A724	0000
						1 1/2"	0" to 0.0002"	Not Rated	Not Rated	1	97395A725	0000
						1 3/4"	0" to 0.0002"	Not Rated	Not Rated	1	97395A732	0000
						2"	0" to 0.0002"	Not Rated	Not Rated	1	97395A735	0000


						High-Strength Machinable 416 Stainless Steel







										7/32" Diameter

										7/32"	0.0001" to 0.0003"	Not Rated	Rockwell C36	5	98380A892	00000


										1/4"	0.0001" to 0.0003"	Not Rated	Rockwell C36	5	98380A530	00000
										3/8"	0.0001" to 0.0003"	Not Rated	Rockwell C36	5	98380A900	00000
1/2"										0.0001" to 0.0003"	Not Rated	Rockwell C36	5	98380A531	00000
5/8"	0.0001" to 0.0003"									Not Rated	Rockwell C36	5	98380A920	00000
3/4"	0.0001" to 0.0003"									Not Rated	Rockwell C36	5	98380A532	00000
1"	0.0001" to 0.0003"									Not Rated	Rockwell C36	5	98380A533	00000
2"	0.0001" to 0.0003"									Not Rated	Rockwell C36	1	98380A534	0000

Corrosion-Resistant Stainless Steel with Material Certificate

Pins include a report with a traceable lot number and a description of their chemical, physical, and mechanical properties.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

	Min. Hardness	Pkg. Qty.		Pkg.
18-8 Stainless Steel







	7/32" Diameter

	2"	0" to 0.0002"	Not Rated	Not Rated	1	90145A812	00000


	High-Strength Machinable 416 Stainless Steel







					7/32" Diameter

					7/8"	0.0001" to 0.0003"	Not Rated	Rockwell C36	5	98380A926	00000

Slotted Spring Pins


	End View

Squeeze these pins into holes and they expand slightly, creating tension to hold parts in place. They are often used as hinge pins and as fasteners for springs and power transmission components. An alternative to dowel pins, they're lighter in weight with a hollow center and don’t need a precise hole. Also known as roll pins.

Spring Steel—These pins won't deform from stress and vibration. Although they're stronger than stainless steel, they're best for dry environments since moisture will cause them to rust.

Zinc-Plated Spring Steel—These pins withstand occasional exposure to moisture. However, since friction from moving parts can wear away the finish, they're not ideal for wet environments. While not nearly as corrosion resistant as stainless steel, they are stronger and won’t deform under stress.

Corrosion-Resistant 18-8 Stainless Steel—The choice for wet and outdoor environments, these pins resist rusting. They are strong enough to join most components but won't withstand extreme stress and vibration as well as steel.

Wear-Resistant 400 Series Stainless Steel—Our most wear-resistant stainless steel pins, these are good for pivoting parts that create a lot of friction. They hold up in environments that experience occasional moisture, but they're not as corrosion resistant as 18-8 and 316 stainless steel.

	Lg.	For Hole Dia.	Wall Thk.	Double Shear Breaking Strength, lbf	Min. Hardness	Specs. Met	Pkg. Qty.		Pkg.
Spring Steel







				7/32" Diameter

				1/2"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	98296A275	000000


				5/8"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	98296A280	00000
				3/4"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	98296A296	00000
				1"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	98296A310	00000
				1 1/4"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	98296A312	00000
				1 1/2"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	98296A315	00000
				1 3/4"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	98296A316	00000
				2"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	98296A317	00000
				2 1/4"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	98296A319	00000
				2 1/2"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	98296A323	00000
				2 3/4"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	98296A327	00000


				3"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	98296A331	00000


				Zinc-Plated Spring Steel







								7/32" Diameter

								1/2"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	90692A293	00000


								5/8"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	90692A295	00000
								3/4"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	90692A297	00000
								1"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	90692A299	00000
								1 1/4"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	100	90692A301	00000
								1 1/2"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	90692A304	00000
								1 3/4"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	90692A306	00000
								2"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	90692A308	00000
								2 1/4"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	90692A310	00000
								2 1/2"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	90692A312	00000
								2 3/4"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	90692A314	00000


								3"	0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	25	90692A316	00000


								Corrosion-Resistant 18-8 Stainless Steel







												7/32" Diameter

1/2"	0.219" to 0.224"											0.048"	3,400	Not Rated	ASME B18.8.2	50	92373A301	00000


5/8"	0.219" to 0.224"											0.048"	3,400	Not Rated	ASME B18.8.2	25	92373A305	00000
3/4"	0.219" to 0.224"	0.048"										3,400	Not Rated	ASME B18.8.2	25	92373A309	00000
1"	0.219" to 0.224"	0.048"	3,400									Not Rated	ASME B18.8.2	25	92373A313	00000
1 1/4"	0.219" to 0.224"	0.048"	3,400									Not Rated	ASME B18.8.2	25	92373A318	00000
1 1/2"	0.219" to 0.224"	0.048"	3,400									Not Rated	ASME B18.8.2	25	92373A322	00000
1 3/4"	0.219" to 0.224"	0.048"	3,400									Not Rated	ASME B18.8.2	25	92373A326	00000
2"	0.219" to 0.224"	0.048"	3,400									Not Rated	ASME B18.8.2	25	92373A331	00000
2 1/4"	0.219" to 0.224"	0.048"	3,400									Not Rated	ASME B18.8.2	10	92373A333	0000
2 1/2"	0.219" to 0.224"	0.048"	3,400									Not Rated	ASME B18.8.2	10	92373A336	0000
2 3/4"	0.219" to 0.224"	0.048"	3,400									Not Rated	ASME B18.8.2	10	92373A338	00000


3"	0.219" to 0.224"	0.048"	3,400									Not Rated	ASME B18.8.2	10	92373A341	00000


Wear-Resistant 400 Series Stainless Steel







												7/32" Diameter

				1/2"								0.219" to 0.224"	0.048"	5,800	Rockwell C43	ASME B18.8.2	50	92383A399	0000


				5/8"	0.219" to 0.224"							0.048"	5,800	Rockwell C43	ASME B18.8.2	25	92383A401	0000
				3/4"	0.219" to 0.224"							0.048"	5,800	Rockwell C43	ASME B18.8.2	25	92383A403	0000
				1"	0.219" to 0.224"	0.048"						5,800	Rockwell C43	ASME B18.8.2	25	92383A407	0000
				1 1/4"	0.219" to 0.224"	0.048"	5,800					Rockwell C43	ASME B18.8.2	25	92383A409	0000
				1 1/2"	0.219" to 0.224"	0.048"	5,800					Rockwell C43	ASME B18.8.2	25	92383A411	0000
				1 3/4"	0.219" to 0.224"	0.048"	5,800					Rockwell C43	ASME B18.8.2	25	92383A414	00000
				2"	0.219" to 0.224"	0.048"	5,800					Rockwell C43	ASME B18.8.2	25	92383A416	00000
				2 1/4"	0.219" to 0.224"	0.048"	5,800					Rockwell C43	ASME B18.8.2	10	92383A417	0000
				2 1/2"	0.219" to 0.224"	0.048"	5,800					Rockwell C43	ASME B18.8.2	10	92383A418	0000
				2 3/4"	0.219" to 0.224"	0.048"	5,800					Rockwell C43	ASME B18.8.2	10	92383A422	00000


				3"	0.219" to 0.224"	0.048"	5,800					Rockwell C43	ASME B18.8.2	10	92383A426	00000

Ejector Sleeves

Use these sleeves with mold pins to form holes, bosses, and other features in parts, and then push the parts out of the mold. Made from H13 tool steel, these sleeves are strong, hard, and resist wear. They've been surface hardened with a process called nitriding, which adds even more strength and wear resistance. They’re precision ground to tight tolerances. Machining is not recommended.

					Head			4" Long		6" Long		8" Long
	ID	ID Tolerance	Dia.	Dia. Tolerance	Dia.	Ht.	Min. Hardness		Each		Each		Each
Nitride-Coated H13 Tool Steel



		1/8"	0" to 0.0005"	7/32"	-0.0008" to -0.0003"	13/32"	3/16"	Rockwell C65	90522A140	000000	90522A150	000000	90522A160	000000

Ejector Pins

Also known as knockout and forged pins, use these pins to push parts out of molds. Pins are precision-ground to tight tolerances and hardened for strength and wear resistance. Machining is not recommended. Metric pins meet DIN 1530 specifications.

Nitride-Coated H13 Tool Steel

H13 tool steel pins resist rapid changes in temperature.

		Head
Dia.	Dia. Tolerance	Dia.	Ht.	Min. Hardness		Each







			4" Long

			7/32"	-0.0008" to -0.0005"	13/32"	3/16"	Rockwell C41	93772A529	00000




					6" Long

					7/32"	-0.0008" to -0.0005"	13/32"	3/16"	Rockwell C41	93772A116	0000




							10" Long

							7/32"	-0.0008" to -0.0005"	13/32"	3/16"	Rockwell C41	93772A245	0000




									14" Long

									7/32"	-0.0008" to -0.0005"	13/32"	3/16"	Rockwell C41	93772A505	0000

Core Pins

Mold plastic around these pins to form small holes, or use them to perforate parts. They have a flat head to fit into a counterbored hole. Pins can be machined to fit your application. They're precision-ground to tight tolerances.

M2 High-Speed Tool Steel About M2 High-Speed Tool Steel

M2 high-speed tool steel pins resist wear and stay sharp at high temperatures.

			Head				Each
	Dia.	Dia. Tolerance	Dia.	Ht.	Min. Hardness		1-9	10-99	100-Up
2 1/2" Long



		7/32"	0" to 0.0002"	9/32"	1/8"	Rockwell C60	98378A949	00000	00000	00000


		4" Long



				7/32"	0" to 0.0003"	9/32"	1/8"	Rockwell C60	98378A399	00000	00000	00000


				6" Long



						7/32"	0" to 0.0003"	9/32"	1/8"	Rockwell C60	98378A978	00000	00000	00000

Copper

Copper pins cool faster than steel ones.

			Head				Each
	Dia.	Dia. Tolerance	Dia.	Ht.	Min. Hardness		1-9	10-99	100-Up
3" Long



		7/32"	0" to 0.001"	13/32"	3/16"	Rockwell C20	92417A170	000000	000000	000000


		6" Long



				7/32"	0" to 0.001"	13/32"	3/16"	Rockwell C20	92417A350	00000	00000	00000

Coiled Spring Pins

End View

The best spring pins for joining parts exposed to vibration and shock. They're often used in power transmission, automation, and other assemblies with constant motion and sudden starts and stops. Because of their spiral shape, they flex to conform to holes that aren’t perfectly round.

Spring Steel—These pins won't deform from stress and vibration. Although they're stronger than stainless steel, they're best for dry environments since moisture will cause them to rust.

	Min. Hardness	Specs. Met	Pkg. Qty.		Pkg.
Spring Steel







	7/32" Diameter

	1"	0.217" to 0.224"	4,200	Rockwell C42	ASME B18.8.2	50	91598A417	000000


	1 1/2"	0.217" to 0.224"	4,200	Rockwell C42	ASME B18.8.2	50	91598A419	00000
	2"	0.217" to 0.224"	4,200	Rockwell C42	ASME B18.8.2	50	91598A423	00000


	Wear-Resistant 400 Series Stainless Steel







					7/32" Diameter

					3/4"	0.217" to 0.224"	4,200	Rockwell C46	ASME B18.8.2	25	93740A352	00000


					1"	0.217" to 0.224"	4,200	Rockwell C46	ASME B18.8.2	10	93740A355	0000
					1 1/2"	0.217" to 0.224"	4,200	Rockwell C46	ASME B18.8.2	10	93740A358	00000
					2"	0.217" to 0.224"	4,200	Rockwell C46	ASME B18.8.2	10	93740A362	00000

Flush Mount-Head Core Pins

A 60° beveled head fits into a countersunk hole. Mold plastic around these pins to form small holes, or use them to perforate parts. Also known as perforator, mold, forged, quill, and pilot pins, they can be machined to fit your application. Pins are precision-ground to tight tolerances.

M2 High-Speed Tool Steel About M2 High-Speed Tool Steel

M2 high-speed tool steel pins resist wear and stay sharp at high temperatures.

			Head
	Dia.	Dia. Tolerance	Dia.	Ht.	Min. Hardness	Countersink Angle		Each
2 1/2" Long



		7/32"	0" to 0.0003"	0.394"	0.153"	Rockwell C60	60°	93757A458	000000


		6" Long



				7/32"	0" to 0.0003"	0.394"	0.153"	Rockwell C60	60°	93757A958	00000

Through-Hardened Ejector Pins

Compared to standard ejector pins, these pins are less likely to chip and crack when used to push steel parts out of molds because they've been hardened through their core. However, they cannot be drilled or tapped and are more brittle than standard ejector pins. They're also known as knockout and forged pins. Made of H13 tool steel, they resist rapid changes in temperature. They’re precision ground to tight tolerances.

Nitride-Coated H13 Tool Steel

		Head
Dia.	Dia. Tolerance	Dia.	Ht.	Min. Hardness		Each







			6" Long

			7/32"	-0.0008" to -0.0005"	13/32"	3/16"	Rockwell C50	4433N113	00000