DIN 316 Thumb Screws | McMaster-Carr

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About Thumb Screw and Binding Post Materials

Made from 18-8 stainless steel, these thumb screws are chemical resistant and may be mildly magnetic. Wings provide more leverage than spade-head thumb screws for greater torque while tightening. Length is measured from under the head.

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

	Head
Lg.	Wd.	Ht.	Specifications Met		Each
18-8 Stainless Steel
M3 × 0.5 mm
12mm	17.6mm	8.6mm	DIN 316	000000000	00000
20mm	17.6mm	8.6mm	DIN 316	000000000	000
30mm	17.6mm	8.6mm	DIN 316	000000000	0000
M4 × 0.7 mm
10mm	23mm	11.5mm	DIN 316	000000000	0000
12mm	23mm	11.5mm	DIN 316	000000000	0000
16mm	23mm	11.5mm	DIN 316	000000000	0000
20mm	23mm	11.5mm	DIN 316	000000000	0000
25mm	23mm	11.5mm	DIN 316	000000000	0000
30mm	23mm	11.5mm	DIN 316	000000000	0000
35mm	23mm	11.5mm	DIN 316	000000000	0000
M5 × 0.8 mm
10mm	23mm	11.5mm	DIN 316	000000000	0000
12mm	23mm	11.5mm	DIN 316	000000000	0000
16mm	23mm	11.5mm	DIN 316	000000000	0000
20mm	23mm	11.5mm	DIN 316	000000000	0000
25mm	23mm	11.5mm	DIN 316	000000000	0000
30mm	23mm	11.5mm	DIN 316	000000000	0000
35mm	23mm	11.5mm	DIN 316	000000000	0000
50mm	23mm	11.5mm	DIN 316	000000000	0000
M6 × 1 mm
10mm	28mm	14mm	DIN 316	000000000	0000
12mm	28mm	14mm	DIN 316	000000000	0000
16mm	28mm	14mm	DIN 316	000000000	0000
20mm	28mm	14mm	DIN 316	000000000	0000
25mm	28mm	14mm	DIN 316	000000000	0000
30mm	28mm	14mm	DIN 316	000000000	0000
35mm	28mm	14mm	DIN 316	000000000	0000
40mm	28mm	14mm	DIN 316	000000000	0000
50mm	28mm	14mm	DIN 316	000000000	0000
M8 × 1.25 mm
16mm	31mm	16mm	DIN 316	000000000	0000
20mm	31mm	16mm	DIN 316	000000000	0000
25mm	31mm	16mm	DIN 316	000000000	0000
30mm	31mm	16mm	DIN 316	000000000	0000
35mm	31mm	16mm	DIN 316	000000000	0000
40mm	31mm	16mm	DIN 316	000000000	0000
50mm	31mm	16mm	DIN 316	000000000	0000
M10 × 1.5 mm
20mm	37mm	18mm	DIN 316	000000000	00000
25mm	37mm	18mm	DIN 316	000000000	0000
30mm	37mm	18mm	DIN 316	000000000	00000
35mm	37mm	18mm	DIN 316	000000000	00000
40mm	37mm	18mm	DIN 316	000000000	00000
50mm	37mm	18mm	DIN 316	000000000	00000
60mm	37mm	18mm	DIN 316	000000000	00000
M12 × 1.75 mm
35mm	50mm	24mm	DIN 316	000000000	00000
50mm	50mm	24mm	DIN 316	000000000	00000

Metric Iron Wing-Head Thumb Screws

These thumb screws have wings that provide more leverage than spade-head thumb screws for greater torque while tightening. A zinc plating provides corrosion resistance in wet environments. Length is measured from under the head.

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

	Head, mm
Lg., mm	Wd.	Ht.	Specifications Met		Each
Zinc-Plated Cast Iron
M4 × 0.7 mm
8	20	10.5	DIN 316	000000000	00000
10	20	10.5	DIN 316	000000000	0000
16	20	10.5	DIN 316	000000000	0000
20	20	10.5	DIN 316	000000000	0000
40	20	10.5	DIN 316	000000000	0000
M5 × 0.8 mm
10	26	13	DIN 316	000000000	0000
12	26	13	DIN 316	000000000	0000
16	26	13	DIN 316	000000000	0000
20	26	13	DIN 316	000000000	0000
25	26	13	DIN 316	000000000	0000
40	26	13	DIN 316	000000000	0000
M6 × 1 mm
10	33	17	DIN 316	000000000	0000
12	33	17	DIN 316	000000000	0000
16	33	17	DIN 316	000000000	0000
20	33	17	DIN 316	000000000	0000
25	33	17	DIN 316	000000000	0000
30	33	17	DIN 316	000000000	0000
50	33	17	DIN 316	000000000	0000
60	33	17	DIN 316	000000000	0000
M8 × 1.25 mm
12	39	20	DIN 316	000000000	0000
16	39	20	DIN 316	000000000	0000
20	39	20	DIN 316	000000000	0000
25	39	20	DIN 316	000000000	0000
30	39	20	DIN 316	000000000	0000
40	39	20	DIN 316	000000000	0000
50	39	20	DIN 316	000000000	0000
80	39	20	DIN 316	000000000	0000

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About Thumb Screw and Binding Post Materials

Stainless Steel Wing-Head Thumb Screws

Metric Iron Wing-Head Thumb Screws