Blue Dyed Screws | McMaster-Carr

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Specifications Met

Head Diameter

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100,000 psi or greater

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EAR99

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About Hex Head Screws and Bolts

Fully Threaded

Partially Threaded

With a tensile strength of 170,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Length is measured from under the head.

Zinc-plated steel screws resist corrosion in wet environments. The screws with a blue-dyed finish are easy to distinguish.

Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Screws that meet ASME B18.3, ASME B18.3.1M, ISO 21269, and ISO 4762 (formerly DIN 912) comply with specifications for dimensional standards.

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

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M3 × 0.5 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
5	Fully Threaded	__	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	100	000000000	000000
6	Fully Threaded	__	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	100	000000000	00000
8	Fully Threaded	__	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	100	000000000	00000
10	Fully Threaded	__	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	100	000000000	00000
12	Fully Threaded	__	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	100	000000000	00000
14	Fully Threaded	__	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	100	000000000	00000
16	Fully Threaded	__	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	100	000000000	00000
18	Fully Threaded	__	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	100	000000000	00000
20	Fully Threaded	__	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	50	000000000	0000
25	Partially Threaded	18	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	50	000000000	00000
30	Partially Threaded	18	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	50	000000000	00000
35	Partially Threaded	18	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	25	000000000	0000
40	Partially Threaded	18	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	25	000000000	00000
50	Partially Threaded	18	Coarse	5.5	3	2.5	170,000	DIN 912, ISO 4762	25	000000000	00000

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M4 × 0.7 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
5	Fully Threaded	__	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	100	000000000	000000
6	Fully Threaded	__	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	100	000000000	00000
8	Fully Threaded	__	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	100	000000000	00000
10	Fully Threaded	__	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	100	000000000	00000
12	Fully Threaded	__	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	100	000000000	00000
14	Fully Threaded	__	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	100	000000000	00000
16	Fully Threaded	__	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	100	000000000	00000
18	Fully Threaded	__	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	100	000000000	00000
20	Fully Threaded	__	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	100	000000000	00000
25	Fully Threaded	__	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	50	000000000	0000
30	Partially Threaded	20	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	50	000000000	00000
35	Partially Threaded	20	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	50	000000000	00000
40	Partially Threaded	20	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	50	000000000	00000
45	Partially Threaded	20	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	50	000000000	00000
50	Partially Threaded	20	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	25	000000000	0000
60	Partially Threaded	20	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	25	000000000	00000
80	Partially Threaded	20	Coarse	7	4	3 mm	170,000	DIN 912, ISO 4762	10	000000000	00000

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M5 × 0.8 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
6	Fully Threaded	__	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	100	000000000	000000
8	Fully Threaded	__	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	100	000000000	00000
10	Fully Threaded	__	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	100	000000000	00000
12	Fully Threaded	__	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	100	000000000	00000
14	Fully Threaded	__	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	100	000000000	00000
16	Fully Threaded	__	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	100	000000000	00000
18	Fully Threaded	__	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	100	000000000	00000
20	Fully Threaded	__	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	100	000000000	00000
25	Fully Threaded	__	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	100	000000000	00000
30	Partially Threaded	22	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	50	000000000	00000
35	Partially Threaded	22	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	50	000000000	00000
40	Partially Threaded	22	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	50	000000000	00000
45	Partially Threaded	22	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	50	000000000	00000
50	Partially Threaded	22	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	50	000000000	00000
60	Partially Threaded	22	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	25	000000000	00000
70	Partially Threaded	22	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	25	000000000	00000
80	Partially Threaded	22	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	25	000000000	00000
90	Partially Threaded	22	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	10	000000000	0000
100	Partially Threaded	22	Coarse	8.5	5	4	170,000	DIN 912, ISO 4762	10	000000000	00000

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M6 × 1 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
8	Fully Threaded	__	Coarse	10	6	5	170,000	DIN 912, ISO 4762	100	000000000	000000
10	Fully Threaded	__	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	00000
12	Fully Threaded	__	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	0000
14	Fully Threaded	__	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	0000
16	Fully Threaded	__	Coarse	10	6	5	170,000	DIN 912, ISO 4762	100	000000000	00000
18	Fully Threaded	__	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	0000
20	Fully Threaded	__	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	0000
22	Fully Threaded	__	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	00000
25	Fully Threaded	__	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	00000
30	Fully Threaded	__	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	00000
35	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	00000
40	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	00000
45	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	50	000000000	00000
50	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	25	000000000	00000
55	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	25	000000000	00000
60	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	25	000000000	00000
65	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	25	000000000	00000
70	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	25	000000000	00000
75	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	25	000000000	00000
80	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	25	000000000	00000
90	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	25	000000000	00000
100	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	10	000000000	00000
110	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	10	000000000	00000
120	Partially Threaded	24	Coarse	10	6	5	170,000	DIN 912, ISO 4762	10	000000000	00000

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M8 × 1.25 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
10	Fully Threaded	__	Coarse	13	8	6	170,000	DIN 912, ISO 4762	50	000000000	000000
12	Fully Threaded	__	Coarse	13	8	6	170,000	DIN 912, ISO 4762	50	000000000	00000
16	Fully Threaded	__	Coarse	13	8	6	170,000	DIN 912, ISO 4762	50	000000000	00000
18	Fully Threaded	__	Coarse	13	8	6	170,000	DIN 912, ISO 4762	50	000000000	00000
20	Fully Threaded	__	Coarse	13	8	6	170,000	DIN 912, ISO 4762	50	000000000	00000
22	Fully Threaded	__	Coarse	13	8	6	170,000	DIN 912, ISO 4762	50	000000000	00000
25	Fully Threaded	__	Coarse	13	8	6	170,000	DIN 912, ISO 4762	50	000000000	00000
30	Fully Threaded	__	Coarse	13	8	6	170,000	DIN 912, ISO 4762	50	000000000	00000
35	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	25	000000000	0000
40	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	25	000000000	00000
45	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	25	000000000	00000
50	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	25	000000000	00000
55	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	25	000000000	00000
60	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	25	000000000	00000
65	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	10	000000000	0000
70	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	10	000000000	0000
75	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	10	000000000	0000
80	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	10	000000000	0000
90	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	10	000000000	0000
100	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	10	000000000	00000
110	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	10	000000000	00000
120	Partially Threaded	28	Coarse	13	8	6	170,000	DIN 912, ISO 4762	5	000000000	0000

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M10 × 1.5 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
12	Fully Threaded	__	Coarse	16	10	8	170,000	DIN 912, ISO 4762	25	000000000	000000
16	Fully Threaded	__	Coarse	16	10	8	170,000	DIN 912, ISO 4762	25	000000000	00000
20	Fully Threaded	__	Coarse	16	10	8	170,000	DIN 912, ISO 4762	25	000000000	00000
25	Fully Threaded	__	Coarse	16	10	8	170,000	DIN 912, ISO 4762	25	000000000	00000
30	Fully Threaded	__	Coarse	16	10	8	170,000	DIN 912, ISO 4762	25	000000000	00000
35	Fully Threaded	__	Coarse	16	10	8	170,000	DIN 912, ISO 4762	25	000000000	00000
40	Fully Threaded	__	Coarse	16	10	8	170,000	DIN 912, ISO 4762	25	000000000	00000
45	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	25	000000000	00000
50	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	10	000000000	0000
55	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	10	000000000	0000
60	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	10	000000000	0000
65	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	10	000000000	00000
70	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	10	000000000	00000
80	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	10	000000000	00000
90	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	10	000000000	00000
100	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	5	000000000	0000
110	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	5	000000000	0000
120	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	5	000000000	0000
150	Partially Threaded	32	Coarse	16	10	8	170,000	DIN 912, ISO 4762	5	000000000	00000

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M12 × 1.75 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
16	Fully Threaded	__	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	00000
20	Fully Threaded	__	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	0000
25	Fully Threaded	__	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	0000
30	Fully Threaded	__	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	0000
35	Fully Threaded	__	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	0000
40	Fully Threaded	__	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	0000
45	Fully Threaded	__	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	00000
50	Fully Threaded	__	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	00000
55	Partially Threaded	36	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	00000
60	Partially Threaded	36	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	00000
65	Partially Threaded	36	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	00000
70	Partially Threaded	36	Coarse	18	12	10	170,000	DIN 912, ISO 4762	10	000000000	00000
80	Partially Threaded	36	Coarse	18	12	10	170,000	DIN 912, ISO 4762	5	000000000	0000
90	Partially Threaded	36	Coarse	18	12	10	170,000	DIN 912, ISO 4762	5	000000000	00000
100	Partially Threaded	36	Coarse	18	12	10	170,000	DIN 912, ISO 4762	5	000000000	00000
110	Partially Threaded	36	Coarse	18	12	10	170,000	DIN 912, ISO 4762	5	000000000	00000
120	Partially Threaded	36	Coarse	18	12	10	170,000	DIN 912, ISO 4762	5	000000000	00000
150	Partially Threaded	36	Coarse	18	12	10	170,000	DIN 912, ISO 4762	5	000000000	00000

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M14 × 2 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
30	Fully Threaded	__	Coarse	21	14	12	170,000	DIN 912, ISO 4762	5	000000000	000000
35	Fully Threaded	__	Coarse	21	14	12	170,000	DIN 912, ISO 4762	5	000000000	00000
40	Fully Threaded	__	Coarse	21	14	12	170,000	DIN 912, ISO 4762	5	000000000	00000
50	Partially Threaded	40	Coarse	21	14	12	170,000	DIN 912, ISO 4762	5	000000000	00000
60	Partially Threaded	40	Coarse	21	14	12	170,000	DIN 912, ISO 4762	5	000000000	00000

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M16 × 2 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
25	Fully Threaded	__	Coarse	24	16	14	170,000	DIN 912, ISO 4762	5	000000000	000000
30	Fully Threaded	__	Coarse	24	16	14	170,000	DIN 912, ISO 4762	5	000000000	00000
35	Fully Threaded	__	Coarse	24	16	14	170,000	DIN 912, ISO 4762	5	000000000	0000
40	Fully Threaded	__	Coarse	24	16	14	170,000	DIN 912, ISO 4762	5	000000000	00000
45	Partially Threaded	44	Coarse	24	16	14	170,000	DIN 912, ISO 4762	5	000000000	00000
50	Partially Threaded	44	Coarse	24	16	14	170,000	DIN 912, ISO 4762	5	000000000	00000
60	Partially Threaded	44	Coarse	24	16	14	170,000	DIN 912, ISO 4762	5	000000000	00000
70	Partially Threaded	44	Coarse	24	16	14	170,000	DIN 912, ISO 4762	5	000000000	00000
80	Partially Threaded	44	Coarse	24	16	14	170,000	DIN 912, ISO 4762	5	000000000	00000
100	Partially Threaded	44	Coarse	24	16	14	170,000	DIN 912, ISO 4762	5	000000000	00000

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M20 × 2.5 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
40	Fully Threaded	__	Coarse	30	20	17	170,000	DIN 912, ISO 4762	1	000000000	00000
50	Fully Threaded	__	Coarse	30	20	17	170,000	DIN 912, ISO 4762	1	000000000	0000
60	Fully Threaded	__	Coarse	30	20	17	170,000	DIN 912, ISO 4762	1	000000000	0000
70	Fully Threaded	__	Coarse	30	20	17	170,000	DIN 912, ISO 4762	1	000000000	0000
80	Partially Threaded	52	Coarse	30	20	17	170,000	DIN 912, ISO 4762	1	000000000	0000
100	Partially Threaded	52	Coarse	30	20	17	170,000	DIN 912, ISO 4762	1	000000000	0000

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M24 × 3 mm
Blue-Dyed Zinc-Plated Class 12.9 Alloy Steel
80	Partially Threaded	60	Coarse	36	24	19	170,000	DIN 912, ISO 4762	1	000000000	000000
90	Partially Threaded	60	Coarse	36	24	19	170,000	DIN 912, ISO 4762	1	000000000	00000
100	Partially Threaded	60	Coarse	36	24	19	170,000	DIN 912, ISO 4762	1	000000000	00000

Metric Alloy Steel Button Head Hex Drive Screws

Blue-Dyed Zinc Plated

These alloy steel screws are nearly twice as strong as stainless steel button head screws. Length is measured from under the head.

Zinc-plated alloy steel screws resist corrosion in wet environments. Screws with a blue-dyed finish have a distinctive blue color that makes them easy to distinguish.

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

Blue-Dyed/Zinc-Plated Class 10.9 Alloy Steel
Lg., mm	Threading	Head Dia., mm	Head Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M3 × 0.5 mm
8	Fully Threaded	5.70	1.65	2	140,000	ISO 7380	50	000000000	00000
10	Fully Threaded	5.70	1.65	2	140,000	ISO 7380	50	000000000	0000
12	Fully Threaded	5.70	1.65	2	140,000	ISO 7380	50	000000000	0000
16	Fully Threaded	5.70	1.65	2	140,000	ISO 7380	50	000000000	00000
20	Fully Threaded	5.70	1.65	2	140,000	ISO 7380	50	000000000	00000
M4 × 0.7 mm
8	Fully Threaded	7.60	2.20	2.5	140,000	ISO 7380	50	000000000	00000
10	Fully Threaded	7.60	2.20	2.5	140,000	ISO 7380	50	000000000	00000
12	Fully Threaded	7.60	2.20	2.5	140,000	ISO 7380	50	000000000	00000
16	Fully Threaded	7.60	2.20	2.5	140,000	ISO 7380	50	000000000	00000
20	Fully Threaded	7.60	2.20	2.5	140,000	ISO 7380	50	000000000	00000
25	Fully Threaded	7.60	2.20	2.5	140,000	ISO 7380	50	000000000	00000
M5 × 0.8 mm
10	Fully Threaded	9.50	2.75	3	140,000	ISO 7380	50	000000000	00000
12	Fully Threaded	9.50	2.75	3	140,000	ISO 7380	50	000000000	00000
16	Fully Threaded	9.50	2.75	3	140,000	ISO 7380	50	000000000	00000
20	Fully Threaded	9.50	2.75	3	140,000	ISO 7380	50	000000000	00000
25	Fully Threaded	9.50	2.75	3	140,000	ISO 7380	25	000000000	00000
30	Fully Threaded	9.50	2.75	3	140,000	ISO 7380	25	000000000	00000
M6 × 1 mm
10	Fully Threaded	10.50	3.30	4	140,000	ISO 7380	50	000000000	00000
12	Fully Threaded	10.50	3.30	4	140,000	ISO 7380	50	000000000	00000
16	Fully Threaded	10.50	3.30	4	140,000	ISO 7380	50	000000000	00000
20	Fully Threaded	10.50	3.30	4	140,000	ISO 7380	50	000000000	00000
25	Fully Threaded	10.50	3.30	4	140,000	ISO 7380	25	000000000	0000
30	Fully Threaded	10.50	3.30	4	140,000	ISO 7380	25	000000000	00000
35	Fully Threaded	10.50	3.30	4	140,000	ISO 7380	25	000000000	00000
M8 × 1.25 mm
10	Fully Threaded	14.00	4.40	5	140,000	ISO 7380	25	000000000	0000
12	Fully Threaded	14.00	4.40	5	140,000	ISO 7380	25	000000000	0000
16	Fully Threaded	14.00	4.40	5	140,000	ISO 7380	25	000000000	0000
20	Fully Threaded	14.00	4.40	5	140,000	ISO 7380	25	000000000	00000
25	Fully Threaded	14.00	4.40	5	140,000	ISO 7380	25	000000000	00000
30	Fully Threaded	14.00	4.40	5	140,000	ISO 7380	10	000000000	0000
35	Fully Threaded	14.00	4.40	5	140,000	ISO 7380	10	000000000	0000
40	Fully Threaded	14.00	4.40	5	140,000	ISO 7380	10	000000000	0000
M10 × 1.5 mm
16	Fully Threaded	17.50	5.50	6	140,000	ISO 7380	10	000000000	0000
20	Fully Threaded	17.50	5.50	6	140,000	ISO 7380	10	000000000	0000
25	Fully Threaded	17.50	5.50	6	140,000	ISO 7380	10	000000000	0000
30	Fully Threaded	17.50	5.50	6	140,000	ISO 7380	10	000000000	00000
35	Fully Threaded	17.50	5.50	6	140,000	ISO 7380	10	000000000	00000
40	Fully Threaded	17.50	5.50	6	140,000	ISO 7380	10	000000000	00000
50	Fully Threaded	17.50	5.50	6	140,000	ISO 7380	10	000000000	00000
M12 × 1.75 mm
20	Fully Threaded	21.00	6.60	8	140,000	ISO 7380	5	000000000	0000
25	Fully Threaded	21.00	6.60	8	140,000	ISO 7380	5	000000000	0000
30	Fully Threaded	21.00	6.60	8	140,000	ISO 7380	5	000000000	0000

High-Strength Metric Class 10.9 Steel Hex Head Screws

Fully Threaded

Partially Threaded

Choose these Class 10.9 steel screws for high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. Dimensions meet ISO (formerly DIN) or DIN specifications. Length is measured from under the head.

Zinc yellow-chromate plated and zinc-plated steel screws resist corrosion in wet environments. Blue-dyed screws are easy to distinguish.Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the pitch.

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

				Head
Lg., mm	Threading	Min. Thread Lg., mm	Thread Spacing	Wd., mm	Ht., mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
Blue-Dyed Zinc-Plated Class 10.9 Steel
M6 × 1 mm
16	Fully Threaded	__	Coarse	10	4	150,000	ISO 4017, DIN 933	50	000000000	000000
20	Fully Threaded	__	Coarse	10	4	150,000	ISO 4017, DIN 933	50	000000000	00000
25	Fully Threaded	__	Coarse	10	4	150,000	ISO 4017, DIN 933	25	000000000	0000
30	Partially Threaded	18	Coarse	10	4	150,000	ISO 4014, DIN 931	25	000000000	0000
35	Partially Threaded	18	Coarse	10	4	150,000	ISO 4014, DIN 931	25	000000000	00000
40	Partially Threaded	18	Coarse	10	4	150,000	ISO 4014, DIN 931	25	000000000	00000
50	Partially Threaded	18	Coarse	10	4	150,000	ISO 4014, DIN 931	25	000000000	00000
M8 × 1.25 mm
16	Fully Threaded	__	Coarse	13	5.3	150,000	ISO 4017, DIN 933	25	000000000	00000
20	Fully Threaded	__	Coarse	13	5.3	150,000	ISO 4017, DIN 933	25	000000000	00000
25	Fully Threaded	__	Coarse	13	5.3	150,000	ISO 4017, DIN 933	25	000000000	00000
30	Fully Threaded	__	Coarse	13	5.3	150,000	ISO 4017, DIN 933	25	000000000	00000
35	Partially Threaded	22	Coarse	13	5.3	150,000	ISO 4014, DIN 931	10	000000000	0000
40	Partially Threaded	22	Coarse	13	5.3	150,000	ISO 4014, DIN 931	10	000000000	0000
50	Partially Threaded	22	Coarse	13	5.3	150,000	ISO 4014, DIN 931	10	000000000	0000
60	Partially Threaded	22	Coarse	13	5.3	150,000	ISO 4014, DIN 931	10	000000000	00000
70	Partially Threaded	22	Coarse	13	5.3	150,000	ISO 4014, DIN 931	10	000000000	00000
80	Partially Threaded	22	Coarse	13	5.3	150,000	ISO 4014, DIN 931	10	000000000	00000
M10 × 1.5 mm
20	Fully Threaded	__	Coarse	17	6.4	150,000	DIN 933	10	000000000	0000
25	Fully Threaded	__	Coarse	17	6.4	150,000	DIN 933	10	000000000	0000
30	Fully Threaded	__	Coarse	17	6.4	150,000	DIN 933	10	000000000	00000
35	Fully Threaded	__	Coarse	17	6.4	150,000	DIN 933	10	000000000	00000
40	Partially Threaded	26	Coarse	17	6.4	150,000	ISO 4014, DIN 931	10	000000000	00000
50	Partially Threaded	26	Coarse	17	6.4	150,000	ISO 4014, DIN 931	5	000000000	0000
60	Partially Threaded	26	Coarse	17	6.4	150,000	ISO 4014, DIN 931	5	000000000	0000
70	Partially Threaded	26	Coarse	17	6.4	150,000	ISO 4014, DIN 931	5	000000000	00000
75	Partially Threaded	26	Coarse	17	6.4	150,000	ISO 4014, DIN 931	5	000000000	00000
80	Partially Threaded	26	Coarse	17	6.4	150,000	ISO 4014, DIN 931	5	000000000	00000
90	Partially Threaded	26	Coarse	17	6.4	150,000	ISO 4014, DIN 931	5	000000000	00000
100	Partially Threaded	26	Coarse	17	6.4	150,000	ISO 4014, DIN 931	1	000000000	0000
120	Partially Threaded	26	Coarse	17	6.4	150,000	ISO 4014, DIN 931	1	000000000	0000
M12 × 1.75 mm
20	Fully Threaded	__	Coarse	19	7.5	150,000	DIN 933	5	000000000	0000
25	Fully Threaded	__	Coarse	19	7.5	150,000	DIN 933	5	000000000	0000
30	Fully Threaded	__	Coarse	19	7.5	150,000	DIN 933	5	000000000	0000
35	Fully Threaded	__	Coarse	19	7.5	150,000	DIN 933	5	000000000	0000
40	Fully Threaded	__	Coarse	19	7.5	150,000	DIN 933	5	000000000	0000
45	Fully Threaded	__	Coarse	19	7.5	150,000	DIN 933	5	000000000	00000
50	Partially Threaded	30	Coarse	19	7.5	150,000	ISO 4014, DIN 931	5	000000000	00000
60	Partially Threaded	30	Coarse	19	7.5	150,000	ISO 4014, DIN 931	5	000000000	00000
70	Partially Threaded	30	Coarse	19	7.5	150,000	ISO 4014, DIN 931	5	000000000	00000
80	Partially Threaded	30	Coarse	19	7.5	150,000	ISO 4014, DIN 931	1	000000000	0000
90	Partially Threaded	30	Coarse	19	7.5	150,000	ISO 4014, DIN 931	1	000000000	0000
100	Partially Threaded	30	Coarse	19	7.5	150,000	ISO 4014, DIN 931	1	000000000	0000
110	Partially Threaded	30	Coarse	19	7.5	150,000	ISO 4014, DIN 931	1	000000000	0000
120	Partially Threaded	30	Coarse	19	7.5	150,000	ISO 4014, DIN 931	1	000000000	0000
M16 × 2 mm
30	Fully Threaded	__	Coarse	24	10	150,000	ISO 4017, DIN 933	5	000000000	00000
35	Fully Threaded	__	Coarse	24	10	150,000	ISO 4017, DIN 933	1	000000000	0000
40	Fully Threaded	__	Coarse	24	10	150,000	ISO 4017, DIN 933	1	000000000	0000
45	Fully Threaded	__	Coarse	24	10	150,000	ISO 4017, DIN 933	1	000000000	0000
50	Fully Threaded	__	Coarse	24	10	150,000	ISO 4017, DIN 933	1	000000000	0000
60	Partially Threaded	38	Coarse	24	10	150,000	ISO 4014, DIN 931	1	000000000	0000
70	Partially Threaded	38	Coarse	24	10	150,000	ISO 4014, DIN 931	1	000000000	0000
80	Partially Threaded	38	Coarse	24	10	150,000	ISO 4014, DIN 931	1	000000000	0000
100	Partially Threaded	38	Coarse	24	10	150,000	ISO 4014, DIN 931	1	000000000	0000
120	Partially Threaded	38	Coarse	24	10	150,000	ISO 4014, DIN 931	1	000000000	0000
140	Partially Threaded	38	Coarse	24	10	150,000	ISO 4014, DIN 931	1	000000000	0000
M20 × 2.5 mm
60	Fully Threaded	__	Coarse	30	12.5	150,000	ISO 4017, DIN 933	1	000000000	0000
70	Partially Threaded	46	Coarse	30	12.5	150,000	ISO 4014, DIN 931	1	000000000	0000
80	Partially Threaded	46	Coarse	30	12.5	150,000	ISO 4014, DIN 931	1	000000000	0000
90	Partially Threaded	46	Coarse	30	12.5	150,000	ISO 4014, DIN 931	1	000000000	0000
100	Partially Threaded	46	Coarse	30	12.5	150,000	ISO 4014, DIN 931	1	000000000	00000
120	Partially Threaded	46	Coarse	30	12.5	150,000	ISO 4014, DIN 931	1	000000000	00000
140	Partially Threaded	46	Coarse	30	12.5	150,000	ISO 4014, DIN 931	1	000000000	00000
M24 × 3 mm
80	Partially Threaded	54	Coarse	36	15	150,000	ISO 4014, DIN 931	1	000000000	00000
90	Partially Threaded	54	Coarse	36	15	150,000	ISO 4014, DIN 931	1	000000000	00000
100	Partially Threaded	54	Coarse	36	15	150,000	ISO 4014, DIN 931	1	000000000	00000
120	Partially Threaded	54	Coarse	36	15	150,000	ISO 4014, DIN 931	1	000000000	00000
140	Partially Threaded	54	Coarse	36	15	150,000	ISO 4014, DIN 931	1	000000000	00000
150	Partially Threaded	54	Coarse	36	15	150,000	ISO 4014, DIN 931	1	000000000	00000

Metric Alloy Steel Hex Drive Flat Head Screws

Blue-Dyed Zinc Plated with 90 Degree Countersink Angle

Made from alloy steel, these screws are nearly twice as strong as stainless steel flat head screws. They're angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.

Zinc-plated alloy steel screws resist corrosion in wet environments. Screws with a blue-dyed finish have a distinctive blue color that makes them easy to identify.

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

Blue-Dyed Zinc-Plated Class 10.9 Alloy Steel—90° Countersink Angle
Lg., mm	Threading	Min. Thread Lg., mm	Head Dia., mm	Head Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M3 × 0.5 mm
5	Fully Threaded	__	6	1.7	2	120,000	DIN 7991	25	000000000	00000
6	Fully Threaded	__	6	1.7	2	120,000	DIN 7991	25	000000000	0000
8	Fully Threaded	__	6	1.7	2	120,000	DIN 7991	50	000000000	0000
10	Fully Threaded	__	6	1.7	2	120,000	DIN 7991	50	000000000	0000
12	Fully Threaded	__	6	1.7	2	120,000	DIN 7991	50	000000000	00000
16	Fully Threaded	__	6	1.7	2	120,000	DIN 7991	50	000000000	00000
20	Fully Threaded	__	6	1.7	2	120,000	DIN 7991	25	000000000	0000
25	Partially Threaded	12	6	1.7	2	120,000	DIN 7991	25	000000000	00000
M4 × 0.7 mm
6	Fully Threaded	__	8	2.3	2.5	120,000	DIN 7991	25	000000000	0000
8	Fully Threaded	__	8	2.3	2.5	120,000	DIN 7991	50	000000000	0000
10	Fully Threaded	__	8	2.3	2.5	120,000	DIN 7991	50	000000000	0000
12	Fully Threaded	__	8	2.3	2.5	120,000	DIN 7991, ISO 10642	50	000000000	0000
16	Fully Threaded	__	8	2.3	2.5	120,000	DIN 7991, ISO 10642	50	000000000	0000
20	Fully Threaded	__	8	2.3	2.5	120,000	DIN 7991, ISO 10642	50	000000000	00000
25	Fully Threaded	__	8	2.3	2.5	120,000	DIN 7991	50	000000000	00000
30	Fully Threaded	__	8	2.3	2.5	120,000	DIN 7991, ISO 10642	25	000000000	0000
M5 × 0.8 mm
8	Fully Threaded	__	10	2.8	3	120,000	DIN 7991, ISO 10642	50	000000000	00000
10	Fully Threaded	__	10	2.8	3	120,000	DIN 7991, ISO 10642	50	000000000	00000
12	Fully Threaded	__	10	2.8	3	120,000	DIN 7991, ISO 10642	50	000000000	0000
16	Fully Threaded	__	10	2.8	3	120,000	ISO 10642	50	000000000	00000
20	Fully Threaded	__	10	2.8	3	120,000	DIN 7991, ISO 10642	50	000000000	00000
25	Fully Threaded	__	10	2.8	3	120,000	DIN 7991, ISO 10642	50	000000000	00000
30	Fully Threaded	__	10	2.8	3	120,000	DIN 7991, ISO 10642	25	000000000	0000
M6 × 1 mm
10	Fully Threaded	__	12	3.3	4	120,000	DIN 7991, ISO 10642	50	000000000	00000
12	Fully Threaded	__	12	3.3	4	120,000	DIN 7991, ISO 10642	50	000000000	00000
16	Fully Threaded	__	12	3.3	4	120,000	ISO 10642	50	000000000	00000
20	Fully Threaded	__	12	3.3	4	120,000	ISO 10642	50	000000000	00000
25	Fully Threaded	__	12	3.3	4	120,000	DIN 7991, ISO 10642	25	000000000	0000
30	Fully Threaded	__	12	3.3	4	120,000	DIN 7991, ISO 10642	25	000000000	00000
35	Fully Threaded	__	12	3.3	4	120,000	DIN 7991, ISO 10642	25	000000000	00000
40	Partially Threaded	18	12	3.3	4	120,000	DIN 7991, ISO 10642	25	000000000	00000
45	Partially Threaded	18	12	3.3	4	120,000	DIN 7991, ISO 10642	25	000000000	00000
50	Partially Threaded	18	12	3.3	4	120,000	DIN 7991, ISO 10642	10	000000000	0000
M8 × 1.25 mm
12	Fully Threaded	__	16	4.4	5	120,000	DIN 7991, ISO 10642	25	000000000	0000
16	Fully Threaded	__	16	4.4	5	120,000	DIN 7991, ISO 10642	25	000000000	0000
20	Fully Threaded	__	16	4.4	5	120,000	DIN 7991, ISO 10642	25	000000000	00000
25	Fully Threaded	__	16	4.4	5	120,000	DIN 7991, ISO 10642	25	000000000	00000
30	Fully Threaded	__	16	4.4	5	120,000	DIN 7991, ISO 10642	25	000000000	00000
35	Fully Threaded	__	16	4.4	5	120,000	DIN 7991, ISO 10642	25	000000000	00000
40	Fully Threaded	__	16	4.4	5	120,000	DIN 7991, ISO 10642	10	000000000	0000
50	Partially Threaded	18	16	4.4	5	120,000	DIN 7991, ISO 10642	10	000000000	00000
M10 × 1.5 mm
16	Fully Threaded	__	20	5.5	6	120,000	DIN 7991, ISO 10642	10	000000000	0000
20	Fully Threaded	__	20	5.5	6	120,000	DIN 7991, ISO 10642	10	000000000	0000
25	Fully Threaded	__	20	5.5	6	120,000	DIN 7991, ISO 10642	10	000000000	0000
30	Fully Threaded	__	20	5.5	6	120,000	DIN 7991, ISO 10642	10	000000000	0000
35	Fully Threaded	__	20	5.5	6	120,000	DIN 7991, ISO 10642	10	000000000	00000
40	Fully Threaded	__	20	5.5	6	120,000	DIN 7991, ISO 10642	10	000000000	00000
50	Fully Threaded	__	20	5.5	6	120,000	DIN 7991, ISO 10642	10	000000000	00000
M12 × 1.75 mm
20	Fully Threaded	__	24	6.5	8	120,000	DIN 7991, ISO 10642	10	000000000	0000
25	Fully Threaded	__	24	6.5	8	120,000	DIN 7991, ISO 10642	10	000000000	00000
30	Fully Threaded	__	24	6.5	8	120,000	DIN 7991, ISO 10642	5	000000000	0000
35	Fully Threaded	__	24	6.5	8	120,000	DIN 7991, ISO 10642	10	000000000	00000
40	Fully Threaded	__	24	6.5	8	120,000	DIN 7991, ISO 10642	5	000000000	00000
45	Fully Threaded	__	24	6.5	8	120,000	DIN 7991, ISO 10642	5	000000000	00000
50	Fully Threaded	__	24	6.5	8	120,000	DIN 7991, ISO 10642	5	000000000	00000

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High-Strength Metric Class 10.9 Steel Hex Head Screws

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