ASME B18.6.7M Screws | McMaster-Carr

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30,000 psi to 99,999 psi

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94 Products

About Flat Head Screws

About Rounded Head Screws

PEEK screws are reliable in harsh environments up to 500° F and withstand acids, bases, and salt solutions. All are chemical and oil resistant, nonconductive, and lightweight. Length is measured from under the head.

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

PEEK Plastic
Lg., mm	Threading	Head Dia., mm	Head Ht., mm	Drive Size	Temperature Range, °F	Color	Specifications Met	Pkg. Qty.		Pkg.
M2 × 0.4 mm
4	Fully Threaded	5.00	1.40	No. 0	-50° to 500°	Beige	ASME B18.6.7M	10	000000000	000000
5	Fully Threaded	5.00	1.40	No. 0	-50° to 500°	Beige	ASME B18.6.7M	10	000000000	00000
6	Fully Threaded	5.00	1.40	No. 0	-50° to 500°	Beige	ASME B18.6.7M	10	000000000	00000
8	Fully Threaded	5.00	1.40	No. 0	-50° to 500°	Beige	ASME B18.6.7M	10	000000000	00000
10	Fully Threaded	5.00	1.40	No. 0	-50° to 500°	Beige	ASME B18.6.7M	10	000000000	00000
M2.5 × 0.45 mm
4	Fully Threaded	5.00	1.40	No. 0	-50° to 500°	Beige	ASME B18.6.7M	10	000000000	00000
5	Fully Threaded	5.00	1.40	No. 0	-50° to 500°	Beige	ASME B18.6.7M	10	000000000	00000
6	Fully Threaded	5.00	1.40	No. 0	-50° to 500°	Beige	ASME B18.6.7M	10	000000000	00000
8	Fully Threaded	5.00	1.40	No. 0	-50° to 500°	Beige	ASME B18.6.7M	10	000000000	00000
10	Fully Threaded	5.00	1.40	No. 0	-50° to 500°	Beige	ASME B18.6.7M	10	000000000	00000
M4 × 0.7 mm
6	Fully Threaded	8.00	2.50	No. 2	-50° to 500°	Beige	ASME B18.6.7M	5	000000000	0000
8	Fully Threaded	8.00	2.50	No. 2	-50° to 500°	Beige	ASME B18.6.7M	5	000000000	0000
10	Fully Threaded	8.00	2.50	No. 2	-50° to 500°	Beige	ASME B18.6.7M	5	000000000	0000
12	Fully Threaded	8.00	2.50	No. 2	-50° to 500°	Beige	ASME B18.6.7M	5	000000000	00000
16	Fully Threaded	8.00	2.50	No. 2	-50° to 500°	Beige	ASME B18.6.7M	5	000000000	00000
20	Fully Threaded	8.00	2.50	No. 1	-50° to 500°	Beige	ASME B18.6.7M	5	000000000	00000
25	Fully Threaded	8.00	2.50	No. 1	-50° to 500°	Beige	ASME B18.6.7M	5	000000000	00000
M5 × 0.8 mm
8	Fully Threaded	9.40	2.70	No. 2	-50° to 500°	Beige	ASME B18.6.7M	1	000000000	0000
10	Fully Threaded	9.40	2.70	No. 2	-50° to 500°	Beige	ASME B18.6.7M	1	000000000	0000
12	Fully Threaded	9.40	2.70	No. 2	-50° to 500°	Beige	ASME B18.6.7M	1	000000000	0000
16	Fully Threaded	9.40	2.70	No. 2	-50° to 500°	Beige	ASME B18.6.7M	1	000000000	0000
20	Fully Threaded	9.40	2.70	No. 2	-50° to 500°	Beige	ASME B18.6.7M	1	000000000	0000
M6 × 1 mm
10	Fully Threaded	12.00	3.30	No. 3	-50° to 500°	Beige	ASME B18.6.7M	1	000000000	0000
12	Fully Threaded	12.00	3.30	No. 3	-50° to 500°	Beige	ASME B18.6.7M	1	000000000	0000
16	Fully Threaded	12.00	3.30	No. 3	-50° to 500°	Beige	ASME B18.6.7M	1	000000000	0000
20	Fully Threaded	12.00	3.30	No. 3	-50° to 500°	Beige	ASME B18.6.7M	1	000000000	0000
25	Fully Threaded	12.00	3.30	No. 3	-50° to 500°	Beige	ASME B18.6.7M	1	000000000	0000

Metric Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

These PTFE screws withstand harsh chemicals and temperatures from -350° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface. Length is measured from under the head.

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

PTFE Plastic
Lg., mm	Threading	Head Dia., mm	Head Ht., mm	Temperature Range, °F	Color	Specifications Met		Each
M3 × 0.5 mm
5	Fully Threaded	5.60	1.80	-350° to 500°	White	ASME B18.6.7M	000000000	00000
6	Fully Threaded	5.60	1.80	-350° to 500°	White	ASME B18.6.7M	000000000	0000
8	Fully Threaded	5.60	1.80	-350° to 500°	White	ASME B18.6.7M	000000000	0000
10	Fully Threaded	5.60	1.80	-350° to 500°	White	ASME B18.6.7M	000000000	0000
12	Fully Threaded	5.60	1.80	-350° to 500°	White	ASME B18.6.7M	000000000	0000
M4 × 0.7 mm
6	Fully Threaded	8.00	2.40	-350° to 500°	White	ASME B18.6.7M	000000000	0000
8	Fully Threaded	8.00	2.40	-350° to 500°	White	ASME B18.6.7M	000000000	0000
10	Fully Threaded	8.00	2.40	-350° to 500°	White	ASME B18.6.7M	000000000	0000
12	Fully Threaded	8.00	2.40	-350° to 500°	White	ASME B18.6.7M	000000000	0000
16	Fully Threaded	8.00	2.40	-350° to 500°	White	ASME B18.6.7M	000000000	0000
M5 × 0.8 mm
8	Fully Threaded	9.50	3.00	-350° to 500°	White	ASME B18.6.7M	000000000	0000
10	Fully Threaded	9.50	3.00	-350° to 500°	White	ASME B18.6.7M	000000000	0000
12	Fully Threaded	9.50	3.00	-350° to 500°	White	ASME B18.6.7M	000000000	0000
16	Fully Threaded	9.50	3.00	-350° to 500°	White	ASME B18.6.7M	000000000	0000
20	Fully Threaded	9.50	3.00	-350° to 500°	White	ASME B18.6.7M	000000000	0000
M6 × 1 mm
10	Fully Threaded	12.00	3.60	-350° to 500°	White	ASME B18.6.7M	000000000	0000
12	Fully Threaded	12.00	3.60	-350° to 500°	White	ASME B18.6.7M	000000000	0000
16	Fully Threaded	12.00	3.60	-350° to 500°	White	ASME B18.6.7M	000000000	0000
20	Fully Threaded	12.00	3.60	-350° to 500°	White	ASME B18.6.7M	000000000	0000
25	Fully Threaded	12.00	3.60	-350° to 500°	White	ASME B18.6.7M	000000000	0000

Metric 18-8 Stainless Steel Torx Flat Head Screws

Torx-Plus Drive

These 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. Screws are passivated for added protection against oxidation and corrosion. Torx and Torx-Plus drives have more points of contact than other drives, allowing you to tighten the screw without damaging the recess. For Torx tools, see Torx and Torx-Plus bits, keys, and drivers . Screws are angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.

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

				Drive
Lg., mm	Threading	Head Dia., mm	Head Ht., mm	Style	Size	Finish	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel
M1.6 × 0.35 mm
3	Fully Threaded	3.65	0.96	Torx Plus	IP5, T5	Passivated	Not Rated	ASME B18.6.7M	100	000000000	00000
4	Fully Threaded	3.65	0.96	Torx Plus	IP5, T5	Passivated	Not Rated	ASME B18.6.7M	100	000000000	0000
5	Fully Threaded	3.65	0.96	Torx Plus	IP5, T5	Passivated	Not Rated	ASME B18.6.7M	100	000000000	0000
M2 × 0.4 mm
4	Fully Threaded	3.78	1.2	Torx Plus	IP6, T6	Passivated	Not Rated	ASME B18.6.7M	100	000000000	00000
5	Fully Threaded	3.78	1.2	Torx Plus	IP6, T6	Passivated	Not Rated	ASME B18.6.7M	100	000000000	00000
6	Fully Threaded	3.78	1.2	Torx Plus	IP6, T6	Passivated	Not Rated	ASME B18.6.7M	100	000000000	00000
8	Fully Threaded	3.78	1.2	Torx Plus	IP6, T6	Passivated	Not Rated	ASME B18.6.7M	100	000000000	00000

Metric Nylon Slotted Flat Head Screws

Off-White

Black

These screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.

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

Nylon Plastic
Lg., mm	Threading	Head Dia., mm	Head Ht., mm	Temperature Range, °F	Specifications Met	Choose a Color	Pkg. Qty.		Pkg.
M4 × 0.7 mm
6	Fully Threaded	9.40	2.70	-40° to 185°	ASME B18.6.7M	Off-White, Black	100	000000000	000000
8	Fully Threaded	9.40	2.70	-40° to 185°	ASME B18.6.7M	Off-White, Black	100	000000000	00000
10	Fully Threaded	9.40	2.70	-40° to 185°	ASME B18.6.7M	Off-White, Black	100	000000000	00000
12	Fully Threaded	9.40	2.70	-40° to 185°	ASME B18.6.7M	Off-White, Black	100	000000000	00000
16	Fully Threaded	9.40	2.70	-40° to 185°	ASME B18.6.7M	Off-White, Black	100	000000000	00000
20	Fully Threaded	9.40	2.70	-40° to 185°	ASME B18.6.7M	Off-White, Black	100	000000000	00000
25	Fully Threaded	9.40	2.70	-40° to 185°	ASME B18.6.7M	Off-White, Black	100	000000000	00000
30	Fully Threaded	9.40	2.70	-40° to 185°	ASME B18.6.7M	Off-White, Black	100	000000000	00000
35	Fully Threaded	9.40	2.70	-40° to 185°	ASME B18.6.7M	Off-White, Black	100	000000000	00000
M6 × 1 mm
30	Fully Threaded	12.60	3.30	-40° to 185°	ASME B18.6.7M	Off-White, Black	100	000000000	00000
M8 × 1.25 mm
16	Fully Threaded	17.30	4.60	-40° to 185°	ASME B18.6.7M	Off-White, Black	25	000000000	00000
20	Fully Threaded	17.30	4.60	-40° to 185°	ASME B18.6.7M	Off-White, Black	25	000000000	00000
25	Fully Threaded	17.30	4.60	-40° to 185°	ASME B18.6.7M	Off-White, Black	25	000000000	00000
30	Fully Threaded	17.30	4.60	-40° to 185°	ASME B18.6.7M	Off-White, Black	25	000000000	00000
50	Fully Threaded	17.30	4.60	-40° to 185°	ASME B18.6.7M	Off-White, Black	25	000000000	00000

Metric Impact-Resistant Polycarbonate Slotted Flat Head Screws

Polycarbonate screws resist breaking in high-impact applications better than other plastic screws. All are chemical and oil resistant, nonconductive, and lightweight. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.

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

Polycarbonate Plastic
Lg., mm	Threading	Head Dia., mm	Head Ht., mm	Temperature Range, °F	Color	Specifications Met	Pkg. Qty.		Pkg.
M3 × 0.5 mm
5	Fully Threaded	6.30	1.70	-40° to 210°	Clear	ASME B18.6.7M	25	000000000	00000
6	Fully Threaded	6.30	1.70	-40° to 210°	Clear	ASME B18.6.7M	25	000000000	0000
8	Fully Threaded	6.30	1.70	-40° to 210°	Clear	ASME B18.6.7M	25	000000000	00000
10	Fully Threaded	6.30	1.70	-40° to 210°	Clear	ASME B18.6.7M	25	000000000	00000
12	Fully Threaded	6.30	1.70	-40° to 210°	Clear	ASME B18.6.7M	25	000000000	00000
M4 × 0.7 mm
6	Fully Threaded	9.40	2.70	-40° to 210°	Clear	ASME B18.6.7M	25	000000000	00000
8	Fully Threaded	9.40	2.70	-40° to 210°	Clear	ASME B18.6.7M	25	000000000	00000
10	Fully Threaded	9.40	2.70	-40° to 210°	Clear	ASME B18.6.7M	25	000000000	00000
12	Fully Threaded	9.40	2.70	-40° to 210°	Clear	ASME B18.6.7M	25	000000000	00000
16	Fully Threaded	9.40	2.70	-40° to 210°	Clear	ASME B18.6.7M	10	000000000	0000
M5 × 0.8 mm
8	Fully Threaded	10.40	2.70	-40° to 210°	Clear	ASME B18.6.7M	10	000000000	0000
10	Fully Threaded	10.40	2.70	-40° to 210°	Clear	ASME B18.6.7M	10	000000000	0000
12	Fully Threaded	10.40	2.70	-40° to 210°	Clear	ASME B18.6.7M	10	000000000	0000
16	Fully Threaded	10.40	2.70	-40° to 210°	Clear	ASME B18.6.7M	10	000000000	0000
20	Fully Threaded	10.40	2.70	-40° to 210°	Clear	ASME B18.6.7M	10	000000000	0000
M6 × 1 mm
12	Fully Threaded	12.60	3.30	-40° to 210°	Clear	ASME B18.6.7M	10	000000000	0000
16	Fully Threaded	12.60	3.30	-40° to 210°	Clear	ASME B18.6.7M	10	000000000	00000
20	Fully Threaded	12.60	3.30	-40° to 210°	Clear	ASME B18.6.7M	10	000000000	00000
25	Fully Threaded	12.60	3.30	-40° to 210°	Clear	ASME B18.6.7M	10	000000000	00000
30	Fully Threaded	12.60	3.30	-40° to 210°	Clear	ASME B18.6.7M	5	000000000	0000
M8 × 1.25 mm
16	Fully Threaded	17.30	4.60	-40° to 210°	Clear	ASME B18.6.7M	5	000000000	0000
20	Fully Threaded	17.30	4.60	-40° to 210°	Clear	ASME B18.6.7M	5	000000000	0000
25	Fully Threaded	17.30	4.60	-40° to 210°	Clear	ASME B18.6.7M	5	000000000	0000
30	Fully Threaded	17.30	4.60	-40° to 210°	Clear	ASME B18.6.7M	5	000000000	0000

Metric Tamper-Resistant Torx Flat Head Screws

With a tamper-resistant Torx drive (also known as a pin-in Torx drive), these screws are difficult to remove without special tools. For installation tools, see tamper-resistant Torx drivers and bits. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic. All are passivated for added protection against oxidation and corrosion. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.

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

18-8 Stainless Steel
Lg., mm	Threading	Head Dia., mm	Head Ht., mm	Drive Size	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M5 × 0.8 mm
35	Fully Threaded	10.40	2.70	T25	80,000	ASME B18.6.7M	25	000000000	000000