JIS (Japanese Industrial Standard) Hex Nuts

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	Thread Size Thread Size

M10

	Thread Pitch Thread Pitch

	Nut Type Nut Type


Hex	Flange

	Width Width

	Material Material

Steel

Stainless Steel

	Finish Finish

Zinc Plated

Black Phosphate

	Thread Spacing Thread Spacing

Coarse

Fine

	Height Height

	Fastener Strength Grade/Class Fastener Strength Grade/Class


Class 8	Class 10

	Specifications Met Specifications Met

JIS B1181

JIS B1190

	Flange Diameter Flange Diameter

14 mm

17.5 mm

21 mm

	Flange Thickness Flange Thickness

0.8 mm

1.1 mm

1.2 mm

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15 Products

About Nuts, Materials, and Finishes

These metric nuts meet JIS (Japanese Industrial Standard) B1181. Made from Class 8 steel, they're suitable for fastening most machinery and equipment.

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

Thread
Size	Pitch, mm	Wd., mm	Ht., mm	Specifications Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel—Class 8
M3	0.5	5.5	2.4	JIS B1181	100	000000000	00000
M4	0.7	7	3.2	JIS B1181	100	000000000	00000
M5	0.8	8	4	JIS B1181	100	000000000	00000
M6	1	10	5	JIS B1181	50	000000000	00000
M8	1.25	12	6.5	JIS B1181	25	000000000	0000
M10	1.25	14	8	JIS B1181	10	000000000	0000

JIS 18-8 Stainless Steel Hex Nuts

These metric nuts meet JIS (Japanese Industrial Standard) B1181. Made from 18-8 stainless steel, they're chemical resistant and may be mildly magnetic.

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

Thread
Size	Pitch, mm	Wd., mm	Ht., mm	Specifications Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel
M3	0.5	5.5	2.4	JIS B1181	50	000000000	000000
M4	0.7	7	3.2	JIS B1181	50	000000000	00000
M5	0.8	8	4	JIS B1181	50	000000000	00000
M6	1	10	5	JIS B1181	25	000000000	00000
M8	1.25	12	6.5	JIS B1181	10	000000000	00000
M10	1.25	14	8	JIS B1181	5	000000000	00000

JIS High-Strength Steel Flange Nuts

These metric nuts meet JIS (Japanese Industrial Standard) B1190. They have a flange that distributes pressure where the nut meets the material surface, eliminating the need for a separate washer. About 25% stronger than medium-strength steel flange nuts, they're comparable in strength to Class 10.9 bolts. A black-phosphate finish provides corrosion resistance in wet environments. Height includes the flange.

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

Thread				Flange
Size	Pitch, mm	Wd., mm	Ht., mm	Dia., mm	Thick., mm	Specifications Met	Pkg. Qty.		Pkg.
Black-Phosphate Steel—Class 10
M6	1	10	6	14	0.8	JIS B1190	100	000000000	00000
M8	1.25	12	8	17.5	1.1	JIS B1190	100	000000000	0000
M10	1.25	14	10	21	1.2	JIS B1190	50	000000000	0000

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About Nuts, Materials, and Finishes

JIS Medium-Strength Steel Hex Nuts

JIS 18-8 Stainless Steel Hex Nuts

JIS High-Strength Steel Flange Nuts

JIS Medium-Strength Steel Hex Nuts

JIS 18-8 Stainless Steel Hex Nuts

JIS High-Strength Steel Flange Nuts