Hollow Dowel Pins

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57 Products

Align parts and bolt them together using the same hole. Install the pin and then insert a bolt or screw through the center. You can also use these pins to route wires and tubing without the need to drill a separate hole. Hollow pins are lighter than solid pins, so they’re a good choice if you need to reduce weight in your assembly.

Steel

Low-Carbon Steel—These pins won't deform from stress and vibration. They're stronger than stainless steel but not quite as strong as alloy steel. Pins perform best in dry environments since moisture will cause them to rust.

	Min. Hardness	Wall Thk., mm	Pkg. Qty.		Pkg.
Low-Carbon Steel







	6 mm Diameter

	12	0.004 to 0.012	Not Rated	Not Rated	0.9	10	97184A120	000000


	20	0.004 to 0.012	Not Rated	Not Rated	0.9	10	97184A160	00000
	30	0.004 to 0.012	Not Rated	Not Rated	0.9	5	97184A180	0000




			8 mm Diameter

			12	0.006 to 0.012	Not Rated	Not Rated	1.2	10	97184A220	00000


			16	0.006 to 0.012	Not Rated	Not Rated	1.2	5	97184A230	0000
			20	0.006 to 0.012	Not Rated	Not Rated	1.2	5	97184A250	0000
			24	0.006 to 0.012	Not Rated	Not Rated	1.2	5	97184A260	00000
			32	0.006 to 0.012	Not Rated	Not Rated	1.2	1	97184A280	0000




					10 mm Diameter

					12	0.006 to 0.015	Not Rated	Not Rated	1.5	5	97184A300	0000


					20	0.006 to 0.015	Not Rated	Not Rated	1.5	1	97184A340	0000
					24	0.006 to 0.015	Not Rated	Not Rated	1.5	1	97184A350	0000
					30	0.006 to 0.015	Not Rated	Not Rated	1.5	1	97184A360	0000




							12 mm Diameter

							20	0.007 to 0.018	Not Rated	Not Rated	1.8	1	97184A410	0000


							24	0.007 to 0.018	Not Rated	Not Rated	1.8	1	97184A420	0000
							30	0.007 to 0.018	Not Rated	Not Rated	1.8	1	97184A430	0000




									16 mm Diameter

									20	0.007 to 0.018	Not Rated	Not Rated	2.4	1	97184A470	0000


									24	0.007 to 0.018	Not Rated	Not Rated	2.4	1	97184A480	0000
									30	0.007 to 0.018	Not Rated	Not Rated	2.4	1	97184A490	0000

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



		3/32"	0" to 0.0005"	3/16"	-0.0008" to -0.0003"	3/8"	3/16"	Rockwell C65	90522A110	000000	90522A120	000000	90522A130	000000


		1/8"	0" to 0.0005"	7/32"	-0.0008" to -0.0003"	13/32"	3/16"	Rockwell C65	90522A140	00000	90522A150	00000	90522A160	00000
		5/32"	0" to 0.0005"	1/4"	-0.0008" to -0.0003"	7/16"	3/16"	Rockwell C65	90522A170	00000	90522A180	00000	90522A190	00000
		3/16"	0" to 0.0005"	5/16"	-0.0008" to -0.0003"	1/2"	1/4"	Rockwell C65	90522A210	00000	90522A220	00000	90522A230	00000
		7/32"	0" to 0.0005"	11/32"	-0.0008" to -0.0003"	9/16"	1/4"	Rockwell C65	90522A240	00000	90522A250	00000	90522A260	00000
		1/4"	0" to 0.0005"	3/8"	-0.0008" to -0.0003"	5/8"	1/4"	Rockwell C65	90522A270	00000	90522A280	00000	90522A290	00000
		5/16"	0" to 0.0005"	7/16"	-0.0008" to -0.0003"	11/16"	1/4"	Rockwell C65	90522A310	00000	90522A320	00000	90522A330	00000
		3/8"	0" to 0.0005"	1/2"	-0.0008" to -0.0003"	3/4"	1/4"	Rockwell C65	90522A340	00000	90522A350	00000	90522A360	00000
		7/16"	0" to 0.0005"	5/8"	-0.0008" to -0.0003"	7/8"	1/4"	Rockwell C65	90522A370	00000	90522A380	00000	90522A390	00000
		1/2"	0" to 0.0005"	11/16"	-0.0008" to -0.0003"	15/16"	1/4"	Rockwell C65	90522A410	00000	90522A420	00000	90522A430	00000
		9/16"	0" to 0.0005"	3/4"	-0.0008" to -0.0003"	1"	1/4"	Rockwell C65	90522A440	00000	90522A450	00000	90522A460	00000


		5/8"	0" to 0.0005"	7/8"	-0.0008" to -0.0003"	1 1/8"	1/4"	Rockwell C65	90522A470	00000	90522A480	00000	90522A490	00000
		3/4"	0" to 0.0005"	1"	-0.0008" to -0.0003"	1 1/4"	1/4"	Rockwell C65	90522A510	00000	90522A520	00000	90522A530	000000