JIS Rounded Head Screws | McMaster-Carr

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112 Products

About Rounded Head Screws

Made to Japanese Industrial Standards, these screws have narrower and shorter heads than standard Phillips pan head screws. They are chemical resistant and may be mildly magnetic. Length is measured from under 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.
M3 × 0.5 mm
4	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	25	000000000	000000
5	Fully Threaded	5.50	2.40	No. 2	50,000	JIS B 1111	25	000000000	00000
6	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	25	000000000	00000
8	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	25	000000000	00000
10	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	25	000000000	00000
12	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	25	000000000	00000
16	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	25	000000000	00000
20	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	10	000000000	00000
25	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	10	000000000	00000
30	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	10	000000000	00000
35	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	10	000000000	00000
40	Fully Threaded	5.50	2.00	No. 2	50,000	JIS B 1111	5	000000000	00000
M4 × 0.7 mm
6	Fully Threaded	8.00	3.10	No. 2	50,000	JIS B 1111	10	000000000	00000
8	Fully Threaded	8.00	3.10	No. 2	50,000	JIS B 1111	10	000000000	00000
10	Fully Threaded	8.00	3.10	No. 2	50,000	JIS B 1111	10	000000000	00000
12	Fully Threaded	7.00	2.60	No. 2	50,000	JIS B 1111	10	000000000	00000
16	Fully Threaded	7.00	2.60	No. 2	50,000	JIS B 1111	10	000000000	00000
20	Fully Threaded	7.00	2.60	No. 2	50,000	JIS B 1111	10	000000000	00000
25	Fully Threaded	7.00	2.60	No. 2	50,000	JIS B 1111	10	000000000	00000
40	Fully Threaded	7.00	2.60	No. 2	50,000	JIS B 1111	5	000000000	00000
50	Fully Threaded	7.00	2.60	No. 2	50,000	JIS B 1111	5	000000000	00000
M5 × 0.8 mm
8	Fully Threaded	9.00	3.30	No. 2	50,000	JIS B 1111	10	000000000	00000
10	Fully Threaded	9.00	3.30	No. 2	50,000	JIS B 1111	5	000000000	00000
12	Fully Threaded	9.00	3.30	No. 2	50,000	JIS B 1111	10	000000000	00000
16	Fully Threaded	9.00	3.30	No. 2	50,000	JIS B 1111	5	000000000	00000
20	Fully Threaded	9.00	3.30	No. 2	50,000	JIS B 1111	5	000000000	00000
25	Fully Threaded	9.00	3.30	No. 2	50,000	JIS B 1111	5	000000000	00000
30	Fully Threaded	9.00	3.30	No. 2	50,000	JIS B 1111	5	000000000	00000
35	Fully Threaded	9.00	3.30	No. 2	50,000	JIS B 1111	5	000000000	00000
50	Fully Threaded	9.00	3.30	No. 2	50,000	JIS B 1111	1	000000000	0000
M6 × 1 mm
10	Fully Threaded	10.50	3.90	No. 3	50,000	JIS B 1111	5	000000000	00000
12	Fully Threaded	10.50	3.90	No. 3	50,000	JIS B 1111	5	000000000	00000
16	Fully Threaded	10.50	3.90	No. 3	50,000	JIS B 1111	5	000000000	00000
20	Fully Threaded	10.50	3.90	No. 3	50,000	JIS B 1111	5	000000000	00000
25	Fully Threaded	10.50	3.90	No. 3	50,000	JIS B 1111	1	000000000	0000
30	Fully Threaded	10.50	3.90	No. 3	50,000	JIS B 1111	1	000000000	0000
35	Fully Threaded	10.50	3.90	No. 3	50,000	JIS B 1111	1	000000000	0000
40	Fully Threaded	10.50	3.90	No. 3	50,000	JIS B 1111	1	000000000	0000

JIS Steel Pan Head Screws

Made to Japanese Industrial Standards, these screws have narrower and shorter heads than standard Phillips pan head screws. They have a zinc plating to resist corrosion in wet environments. Length is measured from under the head.

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

Zinc-Plated Steel
Lg., mm	Threading	Head Dia., mm	Head Ht., mm	Drive Size	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
M2 × 0.4 mm
3	Fully Threaded	3.50	1.30	No. 1	Not Rated	JIS B 1111	25	000000000	00000
4	Fully Threaded	3.50	1.30	No. 1	Not Rated	JIS B 1111	25	000000000	0000
5	Fully Threaded	3.50	1.30	No. 1	Not Rated	JIS B 1111	25	000000000	0000
6	Fully Threaded	3.50	1.30	No. 1	Not Rated	JIS B 1111	25	000000000	0000
8	Fully Threaded	3.50	1.30	No. 1	Not Rated	JIS B 1111	25	000000000	0000
10	Fully Threaded	3.50	1.30	No. 1	Not Rated	JIS B 1111	25	000000000	0000
12	Fully Threaded	3.50	1.30	No. 1	Not Rated	JIS B 1111	25	000000000	0000
M2.5 × 0.45 mm
4	Fully Threaded	4.50	1.70	No. 1	Not Rated	JIS B 1111	25	000000000	0000
6	Fully Threaded	4.50	1.70	No. 1	Not Rated	JIS B 1111	25	000000000	0000
8	Fully Threaded	4.50	1.70	No. 1	Not Rated	JIS B 1111	25	000000000	0000
10	Fully Threaded	4.50	1.70	No. 1	Not Rated	JIS B 1111	25	000000000	0000
12	Fully Threaded	4.50	1.70	No. 1	Not Rated	JIS B 1111	25	000000000	0000
M2.6 × 0.45 mm
4	Fully Threaded	4.50	1.70	No. 1	Not Rated	JIS B 1111	25	000000000	0000
6	Fully Threaded	4.50	1.70	No. 1	Not Rated	JIS B 1111	25	000000000	0000
8	Fully Threaded	4.50	1.70	No. 1	Not Rated	JIS B 1111	25	000000000	0000
10	Fully Threaded	4.50	1.70	No. 1	Not Rated	JIS B 1111	25	000000000	0000
12	Fully Threaded	4.50	1.70	No. 1	Not Rated	JIS B 1111	25	000000000	0000
M3 × 0.5 mm
4	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	0000
5	Fully Threaded	5.50	2.00	No. 2	Not Rated	JIS B 1111	25	000000000	0000
6	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	0000
8	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	0000
10	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	0000
12	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	0000
16	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	0000
20	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	0000
25	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	00000
30	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	00000
35	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	00000
40	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	00000
45	Fully Threaded	5.50	2.00	No. 2	60,000	JIS B 1111	25	000000000	00000
M4 × 0.7 mm
6	Fully Threaded	7.00	2.60	No. 2	Not Rated	JIS B 1111	25	000000000	0000
8	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	25	000000000	0000
10	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	25	000000000	0000
12	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	25	000000000	0000
16	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	25	000000000	00000
20	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	25	000000000	00000
25	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	25	000000000	00000
30	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	25	000000000	00000
35	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	25	000000000	00000
40	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	25	000000000	00000
45	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	25	000000000	00000
50	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	10	000000000	00000
60	Fully Threaded	7.00	2.60	No. 2	60,000	JIS B 1111	10	000000000	00000
M5 × 0.8 mm
6	Fully Threaded	9.00	3.30	No. 2	Not Rated	JIS B 1111	25	000000000	00000
8	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	25	000000000	00000
10	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	25	000000000	00000
12	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	25	000000000	00000
16	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	25	000000000	00000
20	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	25	000000000	00000
25	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	25	000000000	00000
30	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	25	000000000	00000
35	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	25	000000000	00000
40	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	10	000000000	00000
45	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	10	000000000	00000
50	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	10	000000000	00000
60	Fully Threaded	9.00	3.30	No. 2	60,000	JIS B 1111	10	000000000	00000
M6 × 1 mm
10	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	25	000000000	00000
12	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	25	000000000	00000
16	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	25	000000000	00000
20	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	25	000000000	00000
25	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	10	000000000	00000
30	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	10	000000000	00000
35	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	10	000000000	00000
40	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	10	000000000	00000
50	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	10	000000000	00000
60	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	10	000000000	00000
70	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	10	000000000	00000
80	Fully Threaded	10.50	3.90	No. 3	60,000	JIS B 1111	5	000000000	00000

Metric Stainless Steel Pan Head Screws with External-Tooth Lock Washer

These stainless steel screws have good chemical resistance and may be mildly magnetic. They’re passivated for added protection against oxidation and corrosion. All have a washer with sharp external teeth that dig into surfaces for maximum holding power and vibration resistance. Also known as Sems screws, the washer rotates freely but is permanently attached. Length is measured from under the head.

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

				Washer
Lg., mm	Threading	Head Dia., mm	Head Ht., mm	OD, mm.	Thick., mm	Drive Size	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel
M4 × 0.7 mm
6	Fully Threaded	8.00	3.10	7.92	0.60	No. 2	70,000	JIS B 1188	10	000000000	00000
16	Fully Threaded	8.00	3.10	8.50	0.60	No. 2	70,000	JIS B 1188-C	10	000000000	00000

Metric Stainless Steel Pan Head Screws with Internal-Tooth Lock Washer

Made from stainless steel, these screws have good chemical resistance and may be mildly magnetic. They’re passivated for added protection against oxidation and corrosion. The washer has sharp internal teeth that dig into surfaces to resist large amounts of vibration while the smooth outside edge provides a finished look. Also known as Sems screws, the washer rotates freely but is permanently attached. Length is measured from under the head.

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

				Washer
Lg., mm	Threading	Head Dia., mm	Head Ht., mm	OD, mm.	Thick., mm	Drive Size	Tensile Strength, psi	Specifications Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel
M3 × 0.5 mm
20	Fully Threaded	5.60	2.40	6.50	0.45	No. 1	70,000	JIS B 1188-D	10	000000000	000000
25	Fully Threaded	5.60	2.40	6.50	0.45	No. 1	70,000	JIS B 1188-D	10	000000000	00000
M4 × 0.7 mm
5	Fully Threaded	7.00	2.75	8.50	0.60	No. 2	70,000	JIS B 1188-D	25	000000000	00000
M5 × 0.8 mm
12	Fully Threaded	10.00	3.80	10.00	0.60	No. 2	70,000	JIS B 1188-D	10	000000000	00000

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About Rounded Head Screws

JIS Stainless Steel Pan Head Screws

JIS Steel Pan Head Screws

Metric Stainless Steel Pan Head Screws with External-Tooth Lock Washer

Metric Stainless Steel Pan Head Screws with Internal-Tooth Lock Washer