ISO 8745 Dowel Pins | McMaster-Carr

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20 Products

Partially Grooved Dowel Pins

The grooved section secures these pins while the smooth portion is free to act as a pivot or hinge. The grooves pinch shut when installed, creating tension to lock in place. They fit tighter than standard dowel pins and resist pulling from movement and vibration, even in imperfect holes.

For the best fit, drill your hole slightly larger than the nominal diameter shown.

Half Grooved

Tapered Groove

The most versatile partially grooved pins, these are used in a range of applications, including as rod end linkages, stop pins, and locators. Also known as type H pins.

Zinc-Plated Carbon 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.

Tapered Groove—Easier to install than pins with parallel grooves but less secure in high-vibration applications.

		Nominal, mm		Max., mm
	Lg., mm	Dia.	Dia. Tolerance	Dia.	Dia. Tolerance	Groove Type	Double Shear Breaking Strength, lbf	Min. Hardness	Groove Lg., mm	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Carbon Steel





				2 mm Diameter
				10	2	-0.025 to 0	2.2	0 to 0.05	Tapered	600	Rockwell B68	5	ISO 8745	10	000000000	00000
				14	2	-0.025 to 0	2.2	0 to 0.05	Tapered	600	Rockwell B68	7	ISO 8745	10	000000000	0000



						2.5 mm Diameter
						6	2.5	-0.025 to 0	2.7	-0.05 to 0.05	Tapered	950	Rockwell B68	3	ISO 8745	10	000000000	0000
						10	2.5	-0.025 to 0	2.7	-0.05 to 0.05	Tapered	950	Rockwell B68	5	ISO 8745	10	000000000	0000



								3 mm Diameter
								6	3	-0.025 to 0	3.2	-0.05 to 0.05	Tapered	1,400	Rockwell B68	3	ISO 8745	10	000000000	0000
								8	3	-0.025 to 0	3.2	-0.05 to 0.05	Tapered	1,400	Rockwell B68	4	ISO 8745	10	000000000	0000
								12	3	-0.025 to 0	3.3	-0.05 to 0.05	Tapered	1,400	Rockwell B68	6	ISO 8745	10	000000000	0000
								20	3	-0.025 to 0	3.3	-0.05 to 0.05	Tapered	1,400	Rockwell B68	10	ISO 8745	10	000000000	0000
								24	3	-0.025 to 0	3.3	-0.05 to 0.05	Tapered	1,400	Rockwell B68	12	ISO 8745	10	000000000	0000
								26	3	-0.025 to 0	3.3	-0.05 to 0.05	Tapered	1,400	Rockwell B68	13	ISO 8745	10	000000000	0000



										4 mm Diameter
										10	4	-0.075 to 0	4.3	-0.05 to 0.05	Tapered	2,500	Rockwell B68	5	ISO 8745	10	000000000	0000



												5 mm Diameter
												16	5	-0.075 to 0	5.3	-0.05 to 0.05	Tapered	3,900	Rockwell B68	8	ISO 8745	10	000000000	0000
												18	5	-0.075 to 0	5.3	-0.05 to 0.05	Tapered	3,900	Rockwell B68	9	ISO 8745	10	000000000	00000
												30	5	-0.075 to 0	5.4	-0.05 to 0.05	Tapered	3,900	Rockwell B68	15	ISO 8745	10	000000000	00000



														6 mm Diameter
														12	6	-0.075 to 0	6.3	-0.05 to 0.05	Tapered	5,700	Rockwell B68	6	ISO 8745	10	000000000	00000
														20	6	-0.075 to 0	6.3	-0.05 to 0.05	Tapered	5,700	Rockwell B68	10	ISO 8745	10	000000000	00000
														26	6	-0.075 to 0	6.4	-0.05 to 0.05	Tapered	5,700	Rockwell B68	13	ISO 8745	10	000000000	00000
														30	6	-0.075 to 0	6.4	-0.05 to 0.05	Tapered	5,700	Rockwell B68	15	ISO 8745	10	000000000	00000
														40	6	-0.075 to 0	6.4	-0.05 to 0.05	Tapered	5,700	Rockwell B68	20	ISO 8745	10	000000000	00000



																8 mm Diameter
																16	8	-0.09 to 0	8.3	-0.05 to 0.05	Tapered	10,100	Rockwell B68	8	ISO 8745	5	000000000	00000