Metric Panel Screws | McMaster-Carr

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122 Products

About Thumb Screw and Binding Post Materials

Install through a hole and thread on a retainer (sold separately) to keep these screws secure—no special tools are required. Use an optional spring (sold separately) to provide even compression against panels. Screws, retainers, and springs are made from chemical-resistant 18-8 stainless steel and may be mildly magnetic. Length is measured from under the head.

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

Screws								Retainers
		Head				Each				Pkg.		Optional Springs
Lg.	Thread Lg.	Dia.	Ht.	Specifications Met		1-4	5-Up	Pkg. Qty.		1-4	5-Up	Pkg. Qty.		Pkg.
18-8 Stainless Steel
M3 × 0.5 mm
11mm	3.2mm	6.5mm	6.5mm	ASTM A581, ASTM A582	000000000	000000	00000	25	000000000	000000	00000	3	000000000	00000
13mm	3.2mm	6.5mm	6.5mm	ASTM A581, ASTM A582	000000000	00000	0000	25	000000000	00000	0000	3	000000000	0000
14.5mm	3.2mm	6.5mm	6.5mm	ASTM A581, ASTM A582	000000000	00000	0000	25	000000000	00000	0000	3	000000000	0000
17.5mm	3.2mm	6.5mm	6.5mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
22mm	3.2mm	6.5mm	6.5mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
M3.5 × 0.6 mm
11mm	5.5mm	8mm	8mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
13mm	5.5mm	8mm	8mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
14.5mm	5.5mm	8mm	8mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
17.5mm	5.5mm	8mm	8mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
22mm	5.5mm	8mm	8mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
M4 × 0.7 mm
11mm	5.5mm	8mm	8mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
13mm	5.5mm	8mm	8mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
14.5mm	5.5mm	8mm	8mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
17.5mm	5.5mm	8mm	8mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000
22mm	5.5mm	8mm	8mm	ASTM A581, ASTM A582	000000000	00000	00000	25	000000000	00000	0000	3	000000000	0000

Snap-In Captive Panel Screws

Aluminum Head

Black Powder-Coated Aluminum Head

Snap these screws into panels up to 0.125" thick—no tools are required for installation. Screws have a built-in retainer and become a part of the panel when installed, so they won't fall out and get lost. They're often used with surface mount nuts.

Screws with black powder-coated heads blend in with dark surfaces and aren’t reflective. They’re often used in dashboards, cockpits, or military equipment where glare is a concern.

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

For Outer Panel
Thick.	Hole Dia.	Head Dia.	Head Ht.	Lg.	Screw Material		Each
Aluminum Head
Aluminum Body
M3.5 × 0.6 mm
0.5mm to 1mm	6.4mm	11.5mm	10.6mm	5.6mm	400 Series Stainless Steel	000000000	00000
1mm to 1.6mm	6.4mm	11.5mm	10.6mm	8.8mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	11.5mm	10.6mm	10.4mm	400 Series Stainless Steel	000000000	0000
M4 × 0.7 mm
0.5mm to 1mm	6.4mm	13mm	11.3mm	5.6mm	400 Series Stainless Steel	000000000	0000
0.5mm to 1mm	6.4mm	13mm	11.3mm	7.2mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	13mm	11.3mm	7.2mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	13mm	11.3mm	8.8mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	13mm	11.3mm	10.4mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	7.2mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	8.8mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	10.4mm	400 Series Stainless Steel	000000000	0000
M5 × 0.8 mm
0.5mm to 1mm	6.4mm	13mm	11.3mm	7.2mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	13mm	11.3mm	8.8mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	13mm	11.3mm	10.4mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	7.2mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	8.8mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	10.4mm	400 Series Stainless Steel	000000000	0000
Black Powder-Coated Aluminum Head
Aluminum Body
M3.5 × 0.6 mm
0.5mm to 1mm	6.4mm	11.5mm	10.6mm	5.6mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	11.5mm	10.6mm	10.4mm	400 Series Stainless Steel	000000000	0000
M4 × 0.7 mm
0.5mm to 1mm	6.4mm	13mm	11.3mm	5.6mm	400 Series Stainless Steel	000000000	0000
0.5mm to 1mm	6.4mm	13mm	11.3mm	7.2mm	400 Series Stainless Steel	000000000	0000
0.5mm to 1mm	6.4mm	13mm	11.3mm	10.4mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	13mm	11.3mm	7.2mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	13mm	11.3mm	8.8mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	13mm	11.3mm	10.4mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	7.2mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	8.8mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	10.4mm	400 Series Stainless Steel	000000000	0000
M5 × 0.8 mm
1mm to 1.6mm	6.4mm	13mm	11.3mm	7.2mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	13mm	11.3mm	8.8mm	400 Series Stainless Steel	000000000	0000
1mm to 1.6mm	6.4mm	13mm	11.3mm	10.4mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	8.8mm	400 Series Stainless Steel	000000000	0000
1.6mm to 2.5mm	6.4mm	13mm	11.3mm	10.4mm	400 Series Stainless Steel	000000000	0000

Super-Corrosion-Resistant 316 Stainless Steel Binding Barrels

Slotted

Use these barrels with a screw you already have or pair with a different type of screw to create a custom fastener. Made from 316 stainless steel, they have excellent chemical resistance and can be used in saltwater environments. Barrel length is measured from under the head.

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

Barrel
Lg.	Dia.	Head Dia.	Head Ht.	Thread Dp.	Drive Style	Pkg. Qty.		Pkg.
316 Stainless Steel
M4
6mm	5mm	10mm	3mm	6mm	Slotted	1	000000000	00000
8mm	5mm	10mm	3mm	5.5mm	Slotted	1	000000000	0000
10mm	5mm	10mm	3mm	6mm	Slotted	1	000000000	0000
12mm	5mm	10mm	3mm	8.5mm	Slotted	1	000000000	0000
16mm	5mm	10mm	3mm	9.5mm	Slotted	1	000000000	0000
20mm	5mm	10mm	3mm	9.5mm	Slotted	1	000000000	0000
22mm	5mm	10mm	3mm	9.5mm	Slotted	1	000000000	00000
25mm	5mm	10mm	3mm	9.5mm	Slotted	1	000000000	00000
M5
6mm	6.5mm	12mm	4mm	6mm	Slotted	1	000000000	0000
8mm	6.5mm	12mm	4mm	5.5mm	Slotted	1	000000000	0000
10mm	6.5mm	12mm	4mm	7.5mm	Slotted	1	000000000	0000
16mm	6.5mm	12mm	4mm	9.5mm	Slotted	1	000000000	00000
20mm	6.5mm	12mm	4mm	9.5mm	Slotted	1	000000000	00000
22mm	6.5mm	12mm	4mm	9.5mm	Slotted	1	000000000	00000
25mm	6.5mm	12mm	4mm	9.5mm	Slotted	1	000000000	00000
30mm	6.5mm	12mm	4mm	9.5mm	Slotted	1	000000000	00000
50mm	6.5mm	12mm	4mm	9.5mm	Slotted	1	000000000	00000
M6
10mm	7.5mm	14mm	4.2mm	7.5mm	Slotted	1	000000000	0000
12mm	7.5mm	14mm	4.2mm	8.5mm	Slotted	1	000000000	0000
16mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	0000
20mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000
22mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000
25mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000
30mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000
40mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000
50mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000
M8
10mm	10mm	17.5mm	4.4mm	10mm	Slotted	1	000000000	0000
12mm	10mm	17.5mm	4.4mm	9.5mm	Slotted	1	000000000	00000
16mm	10mm	17.5mm	4.4mm	9.5mm	Slotted	1	000000000	00000
20mm	10mm	17.5mm	4.4mm	12.5mm	Slotted	1	000000000	00000
22mm	10mm	17.5mm	4.4mm	12.5mm	Slotted	1	000000000	00000
25mm	10mm	17.5mm	4.4mm	12.5mm	Slotted	1	000000000	00000
30mm	10mm	17.5mm	4.4mm	12.5mm	Slotted	1	000000000	00000
40mm	10mm	17.5mm	4.4mm	12.5mm	Slotted	1	000000000	00000
50mm	10mm	17.5mm	4.4mm	12.5mm	Slotted	1	000000000	00000
Black-Oxide 316 Stainless Steel
M4
6mm	5mm	10mm	3mm	6mm	Slotted	1	000000000	0000
16mm	5mm	10mm	3mm	9.5mm	Slotted	1	000000000	00000
20mm	5mm	10mm	3mm	9.5mm	Slotted	1	000000000	00000
25mm	5mm	10mm	3mm	9.5mm	Slotted	1	000000000	00000
M6
10mm	7.5mm	14mm	4.2mm	7.5mm	Slotted	1	000000000	0000
12mm	7.5mm	14mm	4.2mm	8.5mm	Slotted	1	000000000	00000
16mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000
20mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000
22mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000
25mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000
40mm	7.5mm	14mm	4.2mm	9.5mm	Slotted	1	000000000	00000

Hex Drive Binding Barrels and Screws

Stainless Steel

Black-Oxide Stainless Steel

Made from 18-8 stainless steel, these binding barrels and screws are chemical resistant and may be mildly magnetic. Barrel length and screw length are measured from under the head.

Black-oxide 18-8 stainless steel binding barrels and screws have a matte-black finish that matches dark surfaces and reduces glare.

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

	Barrel						Screw
For Material Thick.	Lg.	Dia.	Head Dia.	Head Ht.	Thread Dp.	Drive Size	Lg.	Head Dia.	Head Ht.	Drive Size		Each
18-8 Stainless Steel
M4 × 0.7 mm
12mm to 14mm	12mm	6mm	10.5mm	4mm	7.5mm	2.5 mm	6mm	10.5mm	4mm	2.5 mm	000000000	00000
16mm to 18mm	16mm	6mm	10.5mm	4mm	7.5mm	2.5 mm	6mm	10.5mm	4mm	2.5 mm	000000000	0000
20mm to 22mm	20mm	6mm	10.5mm	4mm	9.5mm	2.5 mm	8mm	10.5mm	4mm	2.5 mm	000000000	00000
25mm to 27mm	25mm	6mm	10.5mm	4mm	9.5mm	2.5 mm	8mm	10.5mm	4mm	2.5 mm	000000000	00000
30mm to 32mm	30mm	6mm	10.5mm	4mm	9.5mm	2.5 mm	8mm	10.5mm	4mm	2.5 mm	000000000	00000
40mm to 42mm	40mm	6mm	10.5mm	4mm	9.5mm	2.5 mm	8mm	10.5mm	4mm	2.5 mm	000000000	00000
M6 × 1 mm
16mm to 18mm	16mm	10mm	17.5mm	5mm	9.5mm	4 mm	8mm	17.5mm	5mm	4 mm	000000000	00000
20mm to 22mm	20mm	10mm	17.5mm	5mm	9.5mm	4 mm	8mm	17.5mm	5mm	4 mm	000000000	00000
25mm to 27mm	25mm	10mm	17.5mm	5mm	9.5mm	4 mm	8mm	17.5mm	5mm	4 mm	000000000	00000
30mm to 32mm	30mm	10mm	17.5mm	5mm	9.5mm	4 mm	8mm	17.5mm	5mm	4 mm	000000000	00000
40mm to 42mm	40mm	10mm	17.5mm	5mm	9.5mm	4 mm	8mm	17.5mm	5mm	4 mm	000000000	00000
M8 × 1.25 mm
20mm to 23mm	20mm	12mm	21mm	6mm	11.5mm	5 mm	10mm	21mm	6mm	5 mm	000000000	00000
25mm to 28mm	25mm	12mm	21mm	6mm	11.5mm	5 mm	10mm	21mm	6mm	5 mm	000000000	00000
40mm to 43mm	40mm	12mm	21mm	6mm	11.5mm	5 mm	10mm	21mm	6mm	5 mm	000000000	00000
50mm to 53mm	50mm	12mm	21mm	6mm	11.5mm	5 mm	10mm	21mm	6mm	5 mm	000000000	00000
Black-Oxide 18-8 Stainless Steel
M4 × 0.7 mm
12mm to 14mm	12mm	6mm	10.5mm	4mm	7.5mm	2.5 mm	6mm	10.5mm	4mm	2.5 mm	000000000	00000
16mm to 18mm	16mm	6mm	10.5mm	4mm	7.5mm	2.5 mm	6mm	10.5mm	4mm	2.5 mm	000000000	00000
20mm to 22mm	20mm	6mm	10.5mm	4mm	9.5mm	2.5 mm	8mm	10.5mm	4mm	2.5 mm	000000000	00000
25mm to 27mm	25mm	6mm	10.5mm	4mm	9.5mm	2.5 mm	8mm	10.5mm	4mm	2.5 mm	000000000	00000
30mm to 32mm	30mm	6mm	10.5mm	4mm	9.5mm	2.5 mm	8mm	10.5mm	4mm	2.5 mm	000000000	00000
40mm to 42mm	40mm	6mm	10.5mm	4mm	9.5mm	2.5 mm	8mm	10.5mm	4mm	2.5 mm	000000000	00000
M6 × 1 mm
16mm to 18mm	16mm	10mm	17.5mm	5mm	9.5mm	4 mm	8mm	17.5mm	5mm	4 mm	000000000	00000
30mm to 32mm	30mm	10mm	17.5mm	5mm	9.5mm	4 mm	8mm	17.5mm	5mm	4 mm	000000000	00000
40mm to 42mm	40mm	10mm	17.5mm	5mm	9.5mm	4 mm	8mm	17.5mm	5mm	4 mm	000000000	00000

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About Thumb Screw and Binding Post Materials

Thumb-Screw-Head Captive Panel Screws

Snap-In Captive Panel Screws

Super-Corrosion-Resistant 316 Stainless Steel Binding Barrels

Hex Drive Binding Barrels and Screws