M12 Dowel Pins | McMaster-Carr

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	System of Measurement System of Measurement

Metric

	Thread Size Thread Size	Show

M12

	Thread Size Thread Size	Hide

	Thread Pitch Thread Pitch

1.75 mm

	Shaft Diameter Shaft Diameter

12 mm

	Shaft Length Shaft Length

14 mm

	Material Material

Steel

Stainless Steel

	Length Length

	Thread Length Thread Length

	Small End Diameter Small End Diameter

12mm

14mm

	Specifications Met Specifications Met

ISO

DIN

	Large End Diameter Large End Diameter

	Head Type Head Type

	Threaded

	Thread Type Thread Type

Metric

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Mount Type Mount Type


Threaded Stud	Threaded Body

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Pin Type Pin Type

	Taper

	Body Diameter Body Diameter

5 mm

10mm

	End Type End Type

	Plain

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	End Shape End Shape

	Rounded

	Shaft Type Shaft Type

	Tapered

	Width Width

19mm

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About Threaded Studs and Rods

Tighten the nut to draw the pin out of the hole.

Metric

Threads on these pins stick out for easy removal from blind holes. Tighten the hex nut to draw the pin out. Often used for positioning components and securing assemblies, they taper at a uniform rate to fit in tapered holes. For a snug fit, use a tapered drill bit that matches the pin number for inch sizes or the small end diameter for metric sizes. They have slightly rounded edges to aid insertion.

Breaking strength is measured as single shear, which is the force required to break the pin into two pieces.

Steel pins have good strength. Pins that meet ASME B18.8.2 specifications conform to ASME standards for material and dimensions.

18-8 stainless steel pins offer a balance of strength and corrosion resistance. They may be mildly magnetic.

Length for metric pins measures the overall length, including the thread.

Metric—12L14 Carbon Steel

12mm Small End Dia.
Lg., mm	Large End Dia., mm	Rate of Taper	Thread Lg., mm	Thread Size	Min. Hardness	Breaking Strength, lbs./sq. in.	Specifications Met	Pkg. Qty.		Pkg.
85	13.7	1 mm per 50 mm	28.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	00000
90	13.8	1 mm per 50 mm	28.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	0000
95	13.9	1 mm per 50 mm	28.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	0000
100	14	1 mm per 50 mm	28.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	0000
110	14.2	1 mm per 50 mm	28.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	00000
120	14.4	1 mm per 50 mm	28.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	00000
14mm Small End Dia.
85	15.7	1 mm per 50 mm	31.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	0000
90	15.8	1 mm per 50 mm	31.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	0000
95	15.9	1 mm per 50 mm	31.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	00000
100	16	1 mm per 50 mm	31.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	00000
110	16.2	1 mm per 50 mm	31.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	00000
120	16.4	1 mm per 50 mm	31.75	M12	Rockwell B80	34,500	DIN 7977, ISO 8737	1	000000000	00000

Metric—303 Stainless Steel

12mm Small End Dia.
Lg., mm	Large End Dia., mm	Rate of Taper	Thread Lg., mm	Thread Size	Min. Hardness	Breaking Strength, lbs./sq. in.	Specifications Met	Pkg. Qty.		Pkg.
85	13.7	1 mm per 50 mm	28.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	000000
90	13.8	1 mm per 50 mm	28.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000
95	13.9	1 mm per 50 mm	28.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000
100	14	1 mm per 50 mm	28.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000
110	14.2	1 mm per 50 mm	28.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000
120	14.4	1 mm per 50 mm	28.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000
14mm Small End Dia.
85	15.7	1 mm per 50 mm	31.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000
90	15.8	1 mm per 50 mm	31.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000
95	15.9	1 mm per 50 mm	31.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000
100	16	1 mm per 50 mm	31.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000
110	16.2	1 mm per 50 mm	31.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000
120	16.4	1 mm per 50 mm	31.75	M12	Rockwell B96	34,500	DIN 7977, ISO 8737	1	000000000	00000

Metric Partially Threaded Studs

Screw the threaded end of these metric studs into a tapped hole and use the unthreaded end as a pivot point, hinge, shaft, or locator pin. All can be installed and adjusted by hand or with a slotted screwdriver. These studs are steel for strength and wear resistance. They’re best for dry environments, since moisture will cause them to rust. All meet ISO 2342 (formerly DIN 427), an international standard for fastener dimensions.

For technical drawings and 3-D models, click on a part number.

		Shaft
Lg., mm	Thread Lg., mm	Lg., mm	Dia., mm	Dia. Tolerance, mm	Tensile Strength	Hardness	Drive Style	Specifications Met	Pkg. Qty.		Pkg.
Steel
M12 × 1.75 mm
30	16	14	12	-0.27 to 0	Not Rated	Rockwell B75	Slotted	DIN 427, ISO 2342	1	000000000	00000

Threaded Locating and Support Buttons

Use these buttons to support and position workpieces and fixtures from the bottom or side. Their hex shape lets you screw them into a threaded hole with a wrench or socket. Threading makes these buttons easier to replace than press-fit, so they are a good choice for high-wear applications. They’re also known as rest buttons.

For technical drawings and 3-D models, click on a part number.

Metric

		Thread
Lg., mm	Wd., mm	Size	Lg., mm	Lg. Tolerance, mm	Specifications Met		Each
Steel
25	19	M12	20	-0.2 to 0.2	DIN 6320	0000000	000000

Threaded Spring-Loaded Guide Pins

Threading makes these guide pins easier to remove and replace than press fit, so they're useful for high-wear applications. A sealed top prevents debris from getting inside and making them seize up. As the workpiece pushes against the pin head in one direction, the internal spring pushes back to hold it in place for clamping.

For technical drawings and 3-D models, click on a part number.

Guide Pins
Thread		Body		Head								Installation Tools
Size	Pitch, mm	Dia., mm	Lg., mm	Dia., mm	Lg., mm	Max. Head Movement, mm	Max. Spring Force, lbs.	Body Dia. Tolerance, mm	Body Material		Each		Each
Zinc-Plated Steel Head
M12	1.75	5	11.5	5	6	0.8	22	-0.15 to 0.15	Steel	0000000	00000	0000000	000000
M12	1.75	10	11.5	5	6	0.8	4.5	-0.15 to 0.15	Steel	0000000	0000	0000000	00000
M12	1.75	10	11.5	6	10	1	9	-0.15 to 0.15	Steel	0000000	0000	0000000	00000
M12	1.75	10	11.5	6	10	1	16	-0.15 to 0.15	Steel	0000000	0000	0000000	00000

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About Threaded Studs and Rods

Threaded Taper Pins

Metric Partially Threaded Studs

Threaded Locating and Support Buttons

Threaded Spring-Loaded Guide Pins