ISO 21269 Screws | McMaster-Carr

Filter by

System of Measurement

Thread Size

Length

Thread Pitch

Fastener Head Type

Socket Head Profile

Threading

Thread Spacing

Head Diameter

Material

Head Height

Drive Style

Fastener Strength Grade/Class

Thread Type

Drive Size

Finish

Thread Direction

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Thread Fit

Hardness

REACH

RoHS

DFARS Specialty Metals

Not Compliant

Export Control Classification Number (ECCN)

EAR99

Forward

How can we improve?

59 Products

About Socket Head Screws

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.

Black-oxide steel screws are mildly corrosion resistant in dry environments. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance. They are not compatible with coarse threads.

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.
M6 × 0.75 mm
Black-Oxide Class 12.9 Alloy Steel
12	Fully Threaded	__	Fine	10	6	5	170,000	DIN 912, ISO 21269	1	000000000	00000
16	Fully Threaded	__	Fine	10	6	5	170,000	DIN 912, ISO 21269	1	000000000	0000
20	Fully Threaded	__	Fine	10	6	5	170,000	DIN 912, ISO 21269	1	000000000	0000
25	Fully Threaded	__	Fine	10	6	5	170,000	DIN 912, ISO 21269	1	000000000	0000
30	Partially Threaded	24	Fine	10	6	5	170,000	DIN 912, ISO 21269	1	000000000	0000
35	Partially Threaded	24	Fine	10	6	5	170,000	DIN 912, ISO 21269	1	000000000	0000
40	Partially Threaded	24	Fine	10	6	5	170,000	DIN 912, ISO 21269	1	000000000	0000
50	Partially Threaded	24	Fine	10	6	5	170,000	DIN 912, ISO 21269	1	000000000	0000
60	Partially Threaded	24	Fine	10	6	5	170,000	DIN 912, ISO 21269	1	000000000	0000

			Head
Lg., mm	Threading	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M8 × 1 mm
Black-Oxide Class 12.9 Alloy Steel
12	Fully Threaded	Fine	13	8	6	170,000	DIN 912, ISO 21269	1	000000000	00000
16	Fully Threaded	Fine	13	8	6	170,000	DIN 912, ISO 21269	10	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 mm
Black-Oxide Class 12.9 Alloy Steel
20	Fully Threaded	__	Extra Fine	16	10	8	170,000	DIN 912, ISO 21269	10	000000000	000000
30	Fully Threaded	__	Extra Fine	16	10	8	170,000	DIN 912, ISO 21269	10	000000000	00000
40	Partially Threaded	32	Extra Fine	16	10	8	170,000	DIN 912, ISO 21269	10	000000000	00000
50	Partially Threaded	32	Extra Fine	16	10	8	170,000	DIN 912, ISO 21269	10	000000000	00000
60	Partially Threaded	32	Extra Fine	16	10	8	170,000	DIN 912, ISO 21269	5	000000000	00000
80	Partially Threaded	32	Extra Fine	16	10	8	170,000	DIN 912, ISO 21269	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.
M10 × 1.25 mm
Black-Oxide Class 12.9 Alloy Steel
12	Fully Threaded	__	Fine	16	10	8	170,000	DIN 912, ISO 21269	1	000000000	000000
16	Fully Threaded	__	Fine	16	10	8	170,000	DIN 912, ISO 21269	10	000000000	0000
35	Partially Threaded	32	Fine	16	10	8	170,000	DIN 912, ISO 21269	10	000000000	00000
70	Partially Threaded	32	Fine	16	10	8	170,000	DIN 912, ISO 21269	10	000000000	00000
100	Partially Threaded	32	Fine	16	10	8	170,000	DIN 912, ISO 21269	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 × 1.25 mm
Black-Oxide Class 12.9 Alloy Steel
20	Fully Threaded	__	Extra Fine	18	12	10	170,000	DIN 912, ISO 21269	10	000000000	000000
25	Fully Threaded	__	Extra Fine	18	12	10	170,000	DIN 912, ISO 21269	10	000000000	00000
35	Fully Threaded	__	Extra Fine	18	12	10	170,000	DIN 912, ISO 21269	10	000000000	00000
50	Fully Threaded	__	Extra Fine	18	12	10	170,000	DIN 912, ISO 21269	10	000000000	00000
60	Partially Threaded	36	Extra Fine	18	12	10	170,000	DIN 912, ISO 21269	10	000000000	00000
70	Partially Threaded	36	Extra Fine	18	12	10	170,000	DIN 912, ISO 21269	10	000000000	00000
80	Partially Threaded	36	Extra Fine	18	12	10	170,000	DIN 912, ISO 21269	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 × 1.5 mm
Black-Oxide Class 12.9 Alloy Steel
20	Fully Threaded	__	Fine	18	12	10	170,000	DIN 912, ISO 21269	1	000000000	00000
25	Fully Threaded	__	Fine	18	12	10	170,000	DIN 912, ISO 21269	10	000000000	00000
30	Fully Threaded	__	Fine	18	12	10	170,000	DIN 912, ISO 21269	10	000000000	00000
40	Partially Threaded	36	Fine	18	12	10	170,000	DIN 912, ISO 21269	10	000000000	00000
50	Partially Threaded	36	Fine	18	12	10	170,000	DIN 912, ISO 21269	10	000000000	00000
60	Partially Threaded	36	Fine	18	12	10	170,000	DIN 912, ISO 21269	1	000000000	0000
80	Partially Threaded	36	Fine	18	12	10	170,000	DIN 912, ISO 21269	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.
M16 × 1.5 mm
Black-Oxide Class 12.9 Alloy Steel
30	Fully Threaded	__	Fine	24	16	14	170,000	DIN 912, ISO 21269	5	000000000	000000
35	Fully Threaded	__	Fine	24	16	14	170,000	DIN 912, ISO 21269	5	000000000	00000
100	Partially Threaded	44	Fine	24	16	14	170,000	DIN 912, ISO 21269	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.
M20 × 1.5 mm
Black-Oxide Class 12.9 Alloy Steel
50	Fully Threaded	__	Extra Fine	30	20	17	170,000	DIN 912, ISO 21269	1	000000000	00000
60	Partially Threaded	52	Extra Fine	30	20	17	170,000	DIN 912, ISO 21269	1	000000000	0000
80	Partially Threaded	52	Extra Fine	30	20	17	170,000	DIN 912, ISO 21269	1	000000000	0000
100	Partially Threaded	52	Extra Fine	30	20	17	170,000	DIN 912, ISO 21269	1	000000000	00000

18-8 Stainless Steel Socket Head Screws

Fully Threaded

Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head.

Metric screws are also known as A2 stainless steel screws. Fine threads are closely spaced to prevent loosening from vibration. They are not compatible with coarse threads.

Screws that meet ASME B1.1, ASME B18.3, ISO 21269, and ISO 4762 (formerly DIN 912) comply with standards for dimensions.

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

			Head
Lg., mm	Threading	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M3 × 0.35 mm
18-8 Stainless Steel
6	Fully Threaded	Fine	5.5	3	2.5 mm	70,000	DIN 912, ISO 21269	100	000000000	00000
8	Fully Threaded	Fine	5.5	3	2.5 mm	70,000	DIN 912, ISO 21269	100	000000000	0000
10	Fully Threaded	Fine	5.5	3	2.5 mm	70,000	DIN 912, ISO 21269	100	000000000	00000
12	Fully Threaded	Fine	5.5	3	2.5 mm	70,000	DIN 912, ISO 21269	100	000000000	00000
16	Fully Threaded	Fine	5.5	3	2.5 mm	70,000	DIN 912, ISO 21269	100	000000000	00000

			Head
Lg., mm	Threading	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M4 × 0.5 mm
18-8 Stainless Steel
8	Fully Threaded	Fine	7	4	3 mm	70,000	DIN 912, ISO 21269	100	000000000	000000
10	Fully Threaded	Fine	7	4	3 mm	70,000	DIN 912, ISO 21269	100	000000000	00000
12	Fully Threaded	Fine	7	4	3 mm	70,000	DIN 912, ISO 21269	100	000000000	00000
14	Fully Threaded	Fine	7	4	3 mm	70,000	DIN 912, ISO 21269	100	000000000	00000
16	Fully Threaded	Fine	7	4	3 mm	70,000	DIN 912, ISO 21269	50	000000000	0000
20	Fully Threaded	Fine	7	4	3 mm	70,000	DIN 912, ISO 21269	50	000000000	00000

			Head
Lg., mm	Threading	Thread Spacing	Dia., mm	Ht., mm	Drive Size, mm	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M5 × 0.5 mm
18-8 Stainless Steel
10	Fully Threaded	Fine	8.5	5	4 mm	70,000	DIN 912, ISO 21269	50	000000000	000000
12	Fully Threaded	Fine	8.5	5	4 mm	70,000	DIN 912, ISO 21269	50	000000000	00000
16	Fully Threaded	Fine	8.5	5	4 mm	70,000	DIN 912, ISO 21269	50	000000000	00000
20	Fully Threaded	Fine	8.5	5	4 mm	70,000	DIN 912, ISO 21269	50	000000000	00000
25	Fully Threaded	Fine	8.5	5	4 mm	70,000	DIN 912, ISO 21269	25	000000000	0000

Email Us

About Socket Head Screws

Alloy Steel Socket Head Screws

18-8 Stainless Steel Socket Head Screws