Metric Steel Thumb Screws

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About Thumb Screw and Binding Post Materials

These thumb screws have a raised head that makes them easy to grip. The head is knurled for slip-resistant controlled adjustment. A black-oxide finish provides corrosion resistance in dry environments. Length is measured from under the collar.

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

	Head, mm		Collar, mm
Lg., mm	Dia.	Ht.	Dia.	Ht.	Tensile Strength, psi	Hardness	Specifications Met		Each
Black-Oxide Steel
M3 × 0.5 mm
6	12	2.5	6	5	70,000	Rockwell B84	DIN 464	000000000	00000
10	12	2.5	6	5	70,000	Rockwell B84	DIN 464	000000000	0000
12	12	2.5	6	5	70,000	Rockwell B84	DIN 464	000000000	0000
16	12	2.5	6	5	70,000	Rockwell B84	DIN 464	000000000	0000
M4 × 0.7 mm
5	16	3.5	8	6	70,000	Rockwell B84	DIN 464	000000000	0000
8	16	3.5	8	6	70,000	Rockwell B84	DIN 464	000000000	0000
10	16	3.5	8	6	70,000	Rockwell B84	DIN 464	000000000	0000
12	16	3.5	8	6	70,000	Rockwell B84	DIN 464	000000000	0000
16	16	3.5	8	6	70,000	Rockwell B84	DIN 464	000000000	0000
20	16	3.5	8	6	70,000	Rockwell B84	DIN 464	000000000	0000
25	16	3.5	8	6	70,000	Rockwell B84	DIN 464	000000000	0000
M5 × 0.8 mm
8	20	4	10	7.5	70,000	Rockwell B84	DIN 464	000000000	0000
10	20	4	10	7.5	70,000	Rockwell B84	DIN 464	000000000	0000
12	20	4	10	7.5	70,000	Rockwell B84	DIN 464	000000000	0000
16	20	4	10	7.5	70,000	Rockwell B84	DIN 464	000000000	0000
20	20	4	10	7.5	70,000	Rockwell B84	DIN 464	000000000	0000
M6 × 1 mm
8	24	5	12	10	70,000	Rockwell B84	DIN 464	000000000	0000
10	24	5	12	10	70,000	Rockwell B84	DIN 464	000000000	0000
12	24	5	12	10	70,000	Rockwell B84	DIN 464	000000000	0000
16	24	5	12	10	70,000	Rockwell B84	DIN 464	000000000	0000
20	24	5	12	10	70,000	Rockwell B84	DIN 464	000000000	0000
25	24	5	12	10	70,000	Rockwell B84	DIN 464	000000000	0000
M8 × 1.25 mm
20	30	6	16	12	70,000	Rockwell B84	DIN 464	000000000	0000
25	30	6	16	12	70,000	Rockwell B84	DIN 464	000000000	0000
30	30	6	16	12	70,000	Rockwell B84	DIN 464	000000000	00000
40	30	6	16	12	70,000	Rockwell B84	DIN 464	000000000	00000
M10 × 1.5 mm
15	36	8	20	15	70,000	Rockwell B84	DIN 464	000000000	00000
20	36	8	20	15	70,000	Rockwell B84	DIN 464	000000000	00000
25	36	8	20	15	70,000	Rockwell B84	DIN 464	000000000	00000
30	36	8	20	15	70,000	Rockwell B84	DIN 464	000000000	00000
40	36	8	20	15	70,000	Rockwell B84	DIN 464	000000000	00000

Metric Steel Low-Profile Knurled-Head Thumb Screws

These thumb screws have a thin head for use in low-clearance applications. The head is knurled for slip-resistant controlled adjustment. They have a black-oxide finish to resist corrosion in dry environments. Length is measured from under the head.

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

	Head, mm
Lg., mm	Dia.	Ht.	Tensile Strength, psi	Hardness	Specifications Met		Each
Black-Oxide Steel
M3 × 0.5 mm
6	12	2.5	70,000	Rockwell B84	DIN 653	000000000	00000
10	12	2.5	70,000	Rockwell B84	DIN 653	000000000	0000
16	12	2.5	70,000	Rockwell B84	DIN 653	000000000	0000
M4 × 0.7 mm
8	16	3.5	70,000	Rockwell B84	DIN 653	000000000	0000
10	16	3.5	70,000	Rockwell B84	DIN 653	000000000	0000
12	16	3.5	70,000	Rockwell B84	DIN 653	000000000	0000
16	16	3.5	70,000	Rockwell B84	DIN 653	000000000	0000
20	16	3.5	70,000	Rockwell B84	DIN 653	000000000	0000
M5 × 0.8 mm
10	20	4	70,000	Rockwell B84	DIN 653	000000000	0000
12	20	4	70,000	Rockwell B84	DIN 653	000000000	0000
16	20	4	70,000	Rockwell B84	DIN 653	000000000	0000
20	20	4	70,000	Rockwell B84	DIN 653	000000000	0000
M6 × 1 mm
12	24	5	70,000	Rockwell B84	DIN 653	000000000	0000
16	24	5	70,000	Rockwell B84	DIN 653	000000000	0000
20	24	5	70,000	Rockwell B84	DIN 653	000000000	0000
30	24	5	70,000	Rockwell B84	DIN 653	000000000	0000
40	24	5	70,000	Rockwell B84	DIN 653	000000000	00000
M8 × 1.25 mm
16	30	6	70,000	Rockwell B84	DIN 653	000000000	0000
20	30	6	70,000	Rockwell B84	DIN 653	000000000	0000
25	30	6	70,000	Rockwell B84	DIN 653	000000000	0000
30	30	6	70,000	Rockwell B84	DIN 653	000000000	00000
40	30	6	70,000	Rockwell B84	DIN 653	000000000	00000

Metric Four-Arm Extended-Tip Thumb Screws

Often referred to as dog- and pilot-point thumb screws, insert the point into a drilled hole or slot to hold items in place. Arms provide a flat surface to push your fingers against. A black-oxide finish provides corrosion resistance in dry environments. Length is measured from under the collar.

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

	Tip, mm		Head			Collar, mm
Lg., mm	Dia.	Lg.	Wd., mm	Ht., mm	Material	Dia.	Ht.	Tensile Strength, psi	Hardness		Each
Black-Oxide Steel
M6 × 1 mm
26	4.5	3	38	22	Zinc-Plated Cast Iron	16	12.5	70,000	Rockwell B84	000000000	000000
38	4.5	3	38	22	Zinc-Plated Cast Iron	16	12.5	70,000	Rockwell B84	000000000	00000
M8 × 1.25 mm
44.5	6	4.5	38	22	Zinc-Plated Cast Iron	16	12.5	70,000	Rockwell B84	000000000	00000
M10 × 1.5 mm
38	7	4.5	51	22	Zinc-Plated Cast Iron	19	16	70,000	Rockwell B84	000000000	00000
51	7	4.5	51	22	Zinc-Plated Cast Iron	19	16	70,000	Rockwell B84	000000000	00000
M12 × 1.75 mm
38	10	6.5	63.5	38	Zinc-Plated Cast Iron	28.5	25.5	70,000	Rockwell B84	000000000	00000
63.5	10	6.5	63.5	38	Zinc-Plated Cast Iron	28.5	25.5	70,000	Rockwell B84	000000000	00000

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About Thumb Screw and Binding Post Materials

Metric Steel Raised Knurled-Head Thumb Screws

Metric Steel Low-Profile Knurled-Head Thumb Screws

Metric Four-Arm Extended-Tip Thumb Screws