Dowel Pin Assortments

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84 Products

With a range of sizes, use these assortments to precisely align a variety of machine parts and prevent movement during assembly. These pins can also be used as a pivot, shaft, or hinge to join moving components. Dowel pins are machined to tight tolerances and have a uniform diameter for a snug fit. Since they can be hard to remove, they are best for permanent fixtures that don't require frequent adjustments or disassembly.

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.

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.

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.

	No. of Pieces	Specs. Met	Container Type		Each
High-Strength Alloy Steel



	1/16" to 1/4" Dia.	210	—	Plastic Box	000000000	0000000


	1/16" to 3/8" Dia.	24	—	Plastic Box	000000000	00000
	1/16" to 1/2" Dia.	50	—	Plastic Box	000000000	00000
	5/16" to 5/8" Dia.	120	—	Plastic Box	000000000	000000
	3 mm to 6 mm Dia.	540	DIN 6325-m6	Plastic Box	000000000	000000


	18-8 Stainless Steel



			1/16" to 3/8" Dia.	940	—	Plastic Box	000000000	000000


			3 mm to 6 mm Dia.	540	ISO 2338-m6	Plastic Box	000000000	000000


			High-Strength Machinable 416 Stainless Steel



					1/16" to 1/4" Dia.	220	—	Plastic Box	000000000	000000

Slotted Spring Pin Assortments

Keep a range of sizes on hand to secure a variety of parts. Squeeze these pins into holes and they expand slightly, creating tension to stay in place. 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.

	No. of Pieces	Container Type	Specs. Met		Each
Spring Steel



	1/16" to 3/8" Dia.	300	Plastic Box	—	000000000	000000


	1/16" to 7/16" Dia.	500	Plastic Box	—	000000000	000000
	1/16" to 7/16" Dia.	750	Plastic Box	—	000000000	000000
	2 mm to 6 mm Dia.	520	Plastic Box	DIN 1481	000000000	00000


	Zinc-Plated Spring Steel



			1/16" to 3/8" Dia.	300	Plastic Box	—	000000000	000000


			1/16" to 7/16" Dia.	500	Plastic Box	—	000000000	000000
			1/16" to 7/16" Dia.	750	Plastic Box	—	000000000	000000
			1/8" to 3/8" Dia.	25	Plastic Box	—	000000000	00000
			1/8" to 3/8" Dia.	68	Plastic Box	—	000000000	00000
			2 mm to 6 mm Dia.	520	Plastic Box	ISO 8752	000000000	000000


			Corrosion-Resistant 18-8 Stainless Steel



					1/16" to 3/8" Dia.	300	Plastic Box	—	000000000	000000


					1/16" to 7/16" Dia.	500	Plastic Box	—	000000000	000000
					1/16" to 7/16" Dia.	750	Plastic Box	—	000000000	000000
					2 mm to 6 mm Dia.	520	Plastic Box	ISO 8752	000000000	000000


					Wear-Resistant 400 Series Stainless Steel



							1/16" to 3/8" Dia.	300	Plastic Box	—	000000000	000000


							1/16" to 7/16" Dia.	500	Plastic Box	—	000000000	000000
							1/16" to 7/16" Dia.	750	Plastic Box	—	000000000	000000
							1/8" to 3/8" Dia.	25	Plastic Box	—	000000000	00000
							1/8" to 3/8" Dia.	68	Plastic Box	—	000000000	00000

Dowel Pin Stock

Cut this stock to the length you need.

Steel has good strength. Stainless steel is more corrosion resistant than steel.

M2 High-Speed Tool Steel—M2 high-speed tool steel is harder than 4140 alloy steel for better wear resistance.

18-8 Stainless Steel—18-8 stainless steel offers a balance of strength and corrosion resistance. It may be mildly magnetic.

316 Stainless Steel—316 stainless steel has the best corrosion resistance of our stainless steel dowel pin stock. It may be mildly magnetic.

416 Stainless Steel—416 stainless steel is more wear-resistant than other stainless steel. It has some corrosion resistance and is magnetic.

17-4 PH Stainless Steel—17-4 PH stainless steel is our strongest stainless steel dowel pin stock. It has some corrosion resistance and is magnetic.

	Dia. Tolerance	Lg.	Min. Hardness		Each
4140 Alloy Steel



	1/8"	0.0001" to 0.0003"	12"	Rockwell C15	000000000	000000


	5/32"	0.0001" to 0.0003"	12"	Rockwell C15	000000000	00000
	3/16"	0.0001" to 0.0003"	12"	Rockwell C15	000000000	00000
	1/4"	0.0001" to 0.0003"	12"	Rockwell C15	000000000	00000
	5/16"	0.0001" to 0.0003"	12"	Rockwell C15	000000000	00000
	3/8"	0.0001" to 0.0003"	12"	Rockwell C15	000000000	00000
	1/2"	0.0001" to 0.0003"	12"	Rockwell C15	000000000	00000
	9/16"	0.0001" to 0.0003"	12"	Rockwell C15	000000000	00000
	5/8"	0.0001" to 0.0003"	12"	Rockwell C15	000000000	00000


	M2 High-Speed Tool Steel



			1/8"	-0.002" to 0.002"	12"	Rockwell C60	000000000	00000


			5/32"	-0.002" to 0.002"	12"	Rockwell C60	000000000	00000
			3/16"	-0.002" to 0.002"	12"	Rockwell C60	000000000	00000
			1/4"	-0.002" to 0.002"	12"	Rockwell C60	000000000	00000
			5/16"	-0.002" to 0.002"	12"	Rockwell C60	000000000	00000
			3/8"	-0.002" to 0.002"	12"	Rockwell C60	000000000	00000
			1/2"	-0.002" to 0.002"	12"	Rockwell C60	000000000	00000
			9/16"	-0.002" to 0.002"	12"	Rockwell C60	000000000	00000


			18-8 Stainless Steel



					1/8"	0.0001" to 0.0003"	12"	Rockwell C2	000000000	00000


					5/32"	0.0001" to 0.0003"	12"	Rockwell C2	000000000	00000
					3/16"	0.0001" to 0.0003"	12"	Rockwell C2	000000000	00000
					1/4"	0.0001" to 0.0003"	12"	Rockwell C2	000000000	00000
					5/16"	0.0001" to 0.0003"	12"	Rockwell C2	000000000	00000
					3/8"	0.0001" to 0.0003"	12"	Rockwell C2	000000000	00000
					1/2"	0.0001" to 0.0003"	12"	Rockwell C2	000000000	00000
					9/16"	0.0001" to 0.0003"	12"	Rockwell C2	000000000	00000
					5/8"	0.0001" to 0.0003"	12"	Rockwell C2	000000000	00000


					316 Stainless Steel



							1/8"	0.0001" to 0.0003"	12"	Rockwell C9	000000000	00000


							5/32"	0.0001" to 0.0003"	12"	Rockwell C9	000000000	00000
							3/16"	0.0001" to 0.0003"	12"	Rockwell C9	000000000	00000
							1/4"	0.0001" to 0.0003"	12"	Rockwell C9	000000000	00000
							5/16"	0.0001" to 0.0003"	12"	Rockwell C9	000000000	00000
							3/8"	0.0001" to 0.0003"	12"	Rockwell C9	000000000	00000
							1/2"	0.0001" to 0.0003"	12"	Rockwell C9	000000000	00000
							9/16"	0.0001" to 0.0003"	12"	Rockwell C9	000000000	00000
							5/8"	0.0001" to 0.0003"	12"	Rockwell C9	000000000	00000


416 Stainless Steel



							1/8"	0.0001" to 0.0003"	12"	Rockwell C1	000000000	00000


							5/32"	0.0001" to 0.0003"	12"	Rockwell C1	000000000	00000
							3/16"	0.0001" to 0.0003"	12"	Rockwell C1	000000000	00000
							1/4"	0.0001" to 0.0003"	12"	Rockwell C1	000000000	00000
							5/16"	0.0001" to 0.0003"	12"	Rockwell C1	000000000	00000
							3/8"	0.0001" to 0.0003"	12"	Rockwell C1	000000000	00000
							1/2"	0.0001" to 0.0003"	12"	Rockwell C1	000000000	00000
							9/16"	0.0001" to 0.0003"	12"	Rockwell C1	000000000	00000
							5/8"	0.0001" to 0.0003"	12"	Rockwell C1	000000000	00000


	17-4 PH Stainless Steel



							1/8"	0.0001" to 0.0003"	12"	Rockwell C28	000000000	00000


							5/32"	0.0001" to 0.0003"	12"	Rockwell C28	000000000	00000
							3/16"	0.0001" to 0.0003"	12"	Rockwell C28	000000000	00000
							1/4"	0.0001" to 0.0003"	12"	Rockwell C28	000000000	00000
							5/16"	0.0001" to 0.0003"	12"	Rockwell C28	000000000	00000
							3/8"	0.0001" to 0.0003"	12"	Rockwell C28	000000000	00000
							1/2"	0.0001" to 0.0003"	12"	Rockwell C28	000000000	00000
							9/16"	0.0001" to 0.0003"	12"	Rockwell C28	000000000	00000
							5/8"	0.0001" to 0.0003"	12"	Rockwell C28	000000000	00000

Coiled Spring Pin Assortments

The best spring pins for shock and vibration, these assortments secure a variety of parts. They're often used in power transmission, automation, and other assemblies with constant motion and sudden starts and stops. Pins have a spiral shape that flexes 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.

	No. of Pieces	Container Type		Each
Spring Steel



	1/16" to 5/16" Dia.	1,000	Plastic Box	000000000	0000000


	Corrosion-Resistant 18-8 Stainless Steel



			1/16" to 3/16" Dia.	240	Plastic Box	000000000	000000


			1.5 mm to 8 mm Dia.	230	Plastic Box	000000000	000000


			Wear-Resistant 400 Series Stainless Steel



					1/16" to 7/32" Dia.	230	Plastic Box	000000000	000000