Metric Buttons | McMaster-Carr

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81 Products

Thread-In Receptacles for Quick-Release Pins

Use a screwdriver to install these receptacles in a threaded hole. Use them to secure quick-release pins when you can't drill a through hole. They're made of 18-8 stainless steel for a balance of strength and corrosion resistance, and passivated for added protection against corrosion and oxidation.

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

Metric
For Pin Dia.	Barrel OD	Overall Lg.	Usable Lg. Reduction	Thread Size	Thread Pitch	Material		Each
5mm	10mm	14mm	3mm	M10	1.5mm	18-8 Stainless Steel	000000000	000000
6mm	12mm	14mm	3mm	M12	1.75mm	18-8 Stainless Steel	000000000	00000
8mm	14mm	16mm	3mm	M14	2mm	18-8 Stainless Steel	000000000	00000
10mm	18mm	18mm	5mm	M18	2.5mm	18-8 Stainless Steel	000000000	00000
12mm	20mm	19mm	6mm	M20	1.5mm	18-8 Stainless Steel	000000000	00000
16mm	24mm	24mm	6mm	M24	2mm	18-8 Stainless Steel	000000000	00000

Retaining Caps for Quick-Release Pins

Press a retaining cap onto the end of a pin to hold it in a hole that's oversized or out of round. They're made of 18-8 stainless steel for a balance of strength and corrosion resistance.

Caps that are passivated offer added protection against corrosion and oxidation.

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

Caps

Metric
For Pin Dia.	Cap OD	Overall Lg.	Usable Lg. Reduction	Material	Passivation		Each
6mm	9.5mm	14.7mm	3mm	18-8 Stainless Steel	Passivated	000000000	000000
8mm	12.7mm	15.9mm	3mm	18-8 Stainless Steel	Passivated	000000000	00000
10mm	14.3mm	18.5mm	5mm	18-8 Stainless Steel	Passivated	000000000	00000
12mm	19.1mm	25.4mm	6mm	18-8 Stainless Steel	Passivated	000000000	00000
16mm	25.4mm	31.8mm	6mm	18-8 Stainless Steel	Passivated	000000000	00000

Surface-Mount Receptacles for Quick-Release Pins

Oval

When you can't drill a through hole, use one of these flanged receptacles to provide a permanent, blind hole for a quick-release pin. They're made of 18-8 stainless steel for a balance of strength and corrosion resistance.

Receptacles that are passivated offer added protection against corrosion and oxidation.

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

				Mounting Flange
For Pin Dia.	Barrel OD	Overall Lg.	Mounting Hole Thread Size	Wd.	Ht.	Usable Lg. Reduction	Material	Passivation		Each
Metric
Oval
6mm	9.5mm	16.5mm	M4	15.88mm	31.8mm	10mm	18-8 Stainless Steel	Passivated	000000000	000000
8mm	11.9mm	19.9mm	M4	15.88mm	31.8mm	13mm	18-8 Stainless Steel	Passivated	000000000	00000
10mm	14.3mm	23.2mm	M4	15.88mm	31.8mm	15mm	18-8 Stainless Steel	Passivated	000000000	00000
12mm	19.1mm	30.4mm	M5	22.2mm	38.1mm	20mm	18-8 Stainless Steel	Passivated	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
10	10	M6	11	-0.2 to 0.2	DIN 6320	0000000	00000
15	13	M8	13	-0.2 to 0.2	DIN 6320	0000000	0000
20	17	M10	16	-0.2 to 0.2	DIN 6320	0000000	0000
25	19	M12	20	-0.2 to 0.2	DIN 6320	0000000	00000

Press-Fit Locating and Support Buttons

Support and position workpieces and fixtures from the bottom or side. These buttons press into a drilled hole for permanent installation. Also known as rest buttons.

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

Metric

		Stud		Tolerance
Dia., mm	Lg., mm	Dia., mm	Lg., mm	Lg., mm	Stud Dia., mm	Specifications Met		Each
Steel
6	5	4	6	-0.03 to 0	0 to 0.02	DIN 6321	0000000	000000
10	6	6	9	-0.03 to 0	0 to 0.02	DIN 6321	0000000	00000
16	8	8	12	-0.036 to 0	0 to 0.04	DIN 6321	0000000	00000
25	10	12	18	-0.036 to 0	0 to 0.04	DIN 6321	0000000	00000

Screw-Mount Locating and Support Buttons

Mount through the counterbored hole with a socket head cap screw to support and position workpieces and fixtures from the bottom or side. They’re also known as rest buttons.

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

Metric

Steel
Dia., mm	Lg., mm	Lg. Tolerance, mm	For Mounting Screw Size	Mounting Fasteners Included		Each
10	10	-0.03 to 0.03	M3	No	0000000	00000
12	10	-0.03 to 0.03	M4	No	0000000	0000
16	12	-0.03 to 0.03	M5	No	0000000	0000
20	12	-0.03 to 0.03	M6	No	0000000	0000
25	12	-0.03 to 0.03	M6	No	0000000	0000

Domed-Head Locating and Support Buttons

Support rounded or irregularly shaped workpieces from the bottom or side with minimal contact. Press the stud into a drilled hole for permanent installation. Also known as rest buttons.

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

Metric

		Stud		Tolerance
Dia., mm	Lg., mm	Dia.	Lg., mm	Lg., mm	Stud Dia., mm		Each
Steel
6	3.2	4.5	6	-0.051 to 0.051	-0.0127 to 0	0000000	00000
10	4.7	7.5	8	-0.051 to 0.051	-0.0127 to 0	0000000	0000

Threaded Round Plugs for Straight-Thread Pipe

Seal tube and hose fittings to keep their straight threads protected from contaminants during fabrication and storage.

Nylon plugs resist chemicals better than aluminum plugs and are more wear resistant than polyethylene plugs. You can install them manually or with a hex-head wrench or socket.

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

Nylon with External Hex Drive

Nylon

Thread
Size	Pitch, mm	Ht., mm	Max. Temp., °F	Hardness	Color	Pkg. Qty.		Pkg.
M10	1	7	150°	Durometer 55D	Yellow	50	0000000	000000
M12	1.5	10	150°	Durometer 55D	Yellow	50	0000000	00000
M14	1.5	10	150°	Durometer 55D	Yellow	50	0000000	00000
M16	1.5	10	150°	Durometer 55D	Yellow	50	0000000	00000
M18	1.5	10	150°	Durometer 55D	Yellow	50	0000000	00000
M20	1.5	10	150°	Durometer 55D	Yellow	25	0000000	00000
M22	1.5	10	150°	Durometer 55D	Yellow	25	0000000	00000
M24	1.5	12	150°	Durometer 55D	Yellow	25	0000000	00000
M26	1.5	10	150°	Durometer 55D	Yellow	10	0000000	00000
M27	2	13	150°	Durometer 55D	Yellow	10	0000000	00000
M33	2	13	150°	Durometer 55D	Yellow	10	0000000	00000

Snap-In Rectangular Plugs

Flexible ridges securely hold these plugs in place and allow them to fit a range of hole sizes.

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

For Inside			Head
Lg.	Wd.	Ht.	Lg.	Wd.	Max. Temp., °F	Hardness	Color	Pkg. Qty.		Pkg.
Polyethylene Plastic
46mm-48mm	30mm-32mm	20mm	50mm	34mm	150°	Durometer 50D	Black	25	00000000	000000
54mm-57mm	24mm-27mm	15mm	60mm	30mm	150°	Durometer 50D	Black	25	00000000	00000
72mm-73mm	22mm-23mm	18mm	75mm	25mm	150°	Durometer 50D	Black	25	00000000	00000
72mm-75mm	32mm-35mm	24mm	80mm	40mm	150°	Durometer 50D	Black	10	00000000	0000
92mm-96mm	42mm-46mm	16mm	100mm	50mm	150°	Durometer 50D	Black	10	00000000	00000