DIN 439B Nuts | McMaster-Carr

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System of Measurement

Thread Size

Thread Pitch

Hex Nut Profile

Height

Material

Nut Type

Thread Direction

Finish

Zinc Yellow-Chromate Plated

Width

Thread Spacing

Thread Type

Thread Fit

Fastener Strength Grade/Class

Class 04

RoHS

Compliant

Compliant with Exemptions

REACH

Performance

Highly Corrosion Resistant

Fastener Strength Rating

Medium

Drive Style

External Hex

DFARS Specialty Metals

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Exempt

Not Compliant

Export Control Classification Number (ECCN)

EAR99

Color

Blue

Certificate Type

Material Certificate with Traceable Lot Number

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281 Products

About Hex Nuts

Choose a hex nut with the right profile, material, and strength for your application.

Performance

Corrosion Resistant

Won't rust in wet and outdoor environments

151 products

Certificate Type

Material Certificate

Include traceable lot number and test report

26 products

Thread Direction

Left Hand

These nuts tighten when turned to the left

72 products

Thin-Profile Hex Nuts

About half the height of standard-profile nuts, these fit in spaces with low clearance. You can also use them as jam nuts by threading them against another hex nut to hold it in place.

Medium-Strength Steel

These Grade 5 or Class 04 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

Zinc-Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.

Steel—Best for dry environments since moisture will cause these nuts to rust.

Blue Dyed Steel—These metric-sized nuts have a distinctive blue color, so you can easily tell them apart from inch nuts.

	Thread Size	Wd., mm	Ht., mm	Fastener Strength Grade/Class	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel



		M2 × 0.4 mm	4	1.2	Class 04	DIN 439B, ISO 4035	100	000000000	00000


		M2.5 × 0.45 mm	5	1.6	Class 04	DIN 439B, ISO 4035	100	000000000	00000
		M3 × 0.5 mm	5.5	1.8	Class 04	DIN 439B, ISO 4035	100	000000000	0000
		M3.5 × 0.6 mm	6	2	Class 04	DIN 439B, ISO 4035	100	000000000	00000
		M4 × 0.7 mm	7	2.2	Class 04	DIN 439B, ISO 4035	100	000000000	0000
		M5 × 0.5 mm	8	2.7	Class 04	DIN 439B, ISO 4035	25	000000000	00000
		M5 × 0.8 mm	8	2.7	Class 04	DIN 439B, ISO 4035	100	000000000	0000
		M6 × 0.75 mm	10	3.2	Class 04	DIN 439B, ISO 4035	25	000000000	00000
		M6 × 1 mm	10	3.2	Class 04	DIN 439B, ISO 4035	100	000000000	0000
		M7 × 1 mm	11	3.5	Class 04	DIN 439B, ISO 4035	100	000000000	00000
		M8 × 1 mm	13	4	Class 04	DIN 439B, ISO 4035	100	000000000	00000


		M8 × 1.25 mm	13	4	Class 04	DIN 439B, ISO 4035	100	000000000	0000
		M10 × 1 mm	17	5	Class 04	DIN 439B, ISO 4035	100	000000000	00000
		M10 × 1.25 mm	17	5	Class 04	DIN 439B, ISO 4035	100	000000000	00000
		M10 × 1.5 mm	17	5	Class 04	DIN 439B, ISO 4035	100	000000000	00000
		M12 × 1 mm	19	6	Class 04	DIN 439B, ISO 4035	25	000000000	00000
		M12 × 1.25 mm	19	6	Class 04	DIN 439B, ISO 4035	50	000000000	00000
		M12 × 1.5 mm	19	6	Class 04	DIN 439B, ISO 4035	25	000000000	00000
		M12 × 1.75 mm	19	6	Class 04	DIN 439B, ISO 4035	50	000000000	00000
		M14 × 1.25 mm	22	7	Class 04	DIN 439B, ISO 4035	10	000000000	00000
		M14 × 1.5 mm	22	7	Class 04	DIN 439B, ISO 4035	25	000000000	00000


		M14 × 2 mm	22	7	Class 04	DIN 439B, ISO 4035	25	000000000	00000
		M16 × 1 mm	24	8	Class 04	DIN 439B, ISO 4035	5	000000000	00000
		M16 × 1.5 mm	24	8	Class 04	DIN 439B, ISO 4035	10	000000000	00000
		M16 × 2 mm	24	8	Class 04	DIN 439B, ISO 4035	25	000000000	00000
		M18 × 1.5 mm	27	9	Class 04	DIN 439B, ISO 4035	10	000000000	00000
		M18 × 2.5 mm	27	9	Class 04	DIN 439B, ISO 4035	10	000000000	00000
		M20 × 1.5 mm	30	10	Class 04	DIN 439B, ISO 4035	10	000000000	0000
		M20 × 2.5 mm	30	10	Class 04	DIN 439B, ISO 4035	10	000000000	00000
		M22 × 1.5 mm	32	11	Class 04	DIN 439B, ISO 4035	10	000000000	00000
		M22 × 2.5 mm	32	11	Class 04	DIN 439B, ISO 4035	1	000000000	0000


		M24 × 1.5 mm	36	12	Class 04	DIN 439B, ISO 4035	5	000000000	00000
		M24 × 2 mm	36	12	Class 04	DIN 439B, ISO 4035	5	000000000	00000
		M24 × 3 mm	36	12	Class 04	DIN 439B, ISO 4035	5	000000000	00000
		M27 × 2 mm	41	13.5	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M27 × 3 mm	41	13.5	Class 04	DIN 439B, ISO 4035	5	000000000	00000
		M30 × 2 mm	46	15	Class 04	DIN 439B, ISO 4035	1	000000000	0000
		M30 × 3.5 mm	46	15	Class 04	DIN 439B, ISO 4035	1	000000000	0000
		M36 × 3 mm	55	18	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M36 × 4 mm	55	18	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M42 × 4.5 mm	65	21	Class 04	DIN 439B, ISO 4035	1	000000000	00000


		M48 × 5 mm	75	24	Class 04	DIN 439B, ISO 4035	1	000000000	00000


		Zinc-Yellow-Chromate-Plated Steel



				M4 × 0.7 mm	7	2.2	Class 04	DIN 439B, ISO 4035	100	000000000	0000


M5 × 0.8 mm				8	2.7	Class 04	DIN 439B, ISO 4035	100	000000000	0000
M6 × 1 mm	10			3.2	Class 04	DIN 439B, ISO 4035	100	000000000	0000
M8 × 1 mm	13			4	Class 04	DIN 439B, ISO 4035	25	000000000	00000
M8 × 1.25 mm	13			4	Class 04	DIN 439B, ISO 4035	100	000000000	00000
M10 × 1.25 mm	17			5	Class 04	DIN 439B, ISO 4035	25	000000000	0000
M10 × 1.5 mm	17			5	Class 04	DIN 439B, ISO 4035	50	000000000	00000
M12 × 1.5 mm	19			6	Class 04	DIN 439B, ISO 4035	25	000000000	0000
M12 × 1.75 mm	19			6	Class 04	DIN 439B, ISO 4035	50	000000000	00000
M14 × 1.5 mm	22			7	Class 04	DIN 439B, ISO 4035	25	000000000	0000
M14 × 2 mm	22			7	Class 04	DIN 439B, ISO 4035	10	000000000	0000


M16 × 1.5 mm	24			8	Class 04	DIN 439B, ISO 4035	10	000000000	0000
M16 × 2 mm	24			8	Class 04	DIN 439B, ISO 4035	25	000000000	00000
M18 × 1.5 mm	27			9	Class 04	DIN 439B, ISO 4035	5	000000000	0000
M20 × 1.5 mm	30			10	Class 04	DIN 439B, ISO 4035	10	000000000	0000
M20 × 2.5 mm	30			10	Class 04	DIN 439B, ISO 4035	10	000000000	00000
M22 × 1.5 mm	32			11	Class 04	DIN 439B, ISO 4035	5	000000000	0000
M30 × 2 mm	46			15	Class 04	DIN 439B, ISO 4035	1	000000000	0000


Steel



				M2 × 0.4 mm	4	1.2	—	DIN 439B, ISO 4035	100	000000000	0000


				M2.5 × 0.45 mm	5	1.6	—	DIN 439B, ISO 4035	100	000000000	0000
				M3 × 0.5 mm	5.5	1.8	—	DIN 439B, ISO 4035	100	000000000	0000
				M4 × 0.7 mm	7	2.2	Class 04	DIN 439B, ISO 4035	100	000000000	0000
				M5 × 0.8 mm	8	2.7	Class 04	DIN 439B, ISO 4035	100	000000000	0000
				M6 × 1 mm	10	3.2	Class 04	DIN 439B, ISO 4035	100	000000000	0000
				M8 × 1 mm	13	4	Class 04	DIN 439B, ISO 4035	50	000000000	0000
				M8 × 1.25 mm	13	4	Class 04	DIN 439B, ISO 4035	100	000000000	0000
				M10 × 1.25 mm	17	5	Class 04	DIN 439B, ISO 4035	50	000000000	00000
				M10 × 1.5 mm	17	5	Class 04	DIN 439B, ISO 4035	100	000000000	00000
				M12 × 1.5 mm	19	6	Class 04	DIN 439B, ISO 4035	25	000000000	0000


				M12 × 1.75 mm	19	6	Class 04	DIN 439B, ISO 4035	50	000000000	0000
				M14 × 1.5 mm	22	7	Class 04	DIN 439B, ISO 4035	50	000000000	00000
				M14 × 2 mm	22	7	—	DIN 439B, ISO 4035	10	000000000	0000
				M16 × 1.5 mm	24	8	Class 04	DIN 439B, ISO 4035	25	000000000	00000
				M16 × 2 mm	24	8	Class 04	DIN 439B, ISO 4035	25	000000000	0000
				M18 × 1.5 mm	27	9	Class 04	DIN 439B, ISO 4035	10	000000000	0000
				M20 × 1.5 mm	30	10	Class 04	DIN 439B, ISO 4035	10	000000000	0000
				M20 × 2.5 mm	30	10	Class 04	DIN 439B, ISO 4035	10	000000000	0000
				M22 × 1.5 mm	32	11	Class 04	DIN 439B, ISO 4035	10	000000000	0000
				M22 × 2.5 mm	32	11	—	DIN 439B, ISO 4035	1	000000000	0000


				M24 × 1.5 mm	36	12	Class 04	DIN 439B, ISO 4035	5	000000000	00000
				M24 × 2 mm	36	12	Class 04	DIN 439B, ISO 4035	5	000000000	00000
				M24 × 3 mm	36	12	Class 04	DIN 439B, ISO 4035	5	000000000	0000
				M27 × 1.5 mm	41	13.5	Class 04	DIN 439B, ISO 4035	1	000000000	00000
				M27 × 2 mm	41	13.5	Class 04	DIN 439B, ISO 4035	1	000000000	0000
				M30 × 2 mm	46	15	Class 04	DIN 439B, ISO 4035	1	000000000	0000
				M30 × 3.5 mm	46	15	—	DIN 439B, ISO 4035	1	000000000	0000
		M33 × 2 mm		50	16.5	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M36 × 3 mm	55	18	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M36 × 4 mm	55	18	Class 04	DIN 439B, ISO 4035	1	000000000	0000


		M39 × 3 mm	60	19.5	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M42 × 3 mm	65	21	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M45 × 3 mm	70	22.5	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M48 × 3 mm	75	24	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M48 × 5 mm	75	24	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M52 × 3 mm	80	26	Class 04	DIN 439B, ISO 4035	1	000000000	00000
		M52 × 5 mm	80	26	Class 04	DIN 439B, ISO 4035	1	000000000	00000


		Blue Dyed Steel



				M6 × 1 mm	10	3.2	Class 04	DIN 439B, ISO 4035	50	000000000	0000


				M8 × 1.25 mm	13	4	Class 04	DIN 439B, ISO 4035	50	000000000	0000
				M10 × 1.5 mm	17	5	Class 04	DIN 439B, ISO 4035	50	000000000	00000
				M12 × 1.75 mm	19	6	Class 04	DIN 439B, ISO 4035	25	000000000	0000
				M16 × 2 mm	24	8	Class 04	DIN 439B, ISO 4035	10	000000000	0000
				M20 × 2.5 mm	30	10	Class 04	DIN 439B, ISO 4035	10	000000000	00000
				M24 × 3 mm	36	12	Class 04	DIN 439B, ISO 4035	1	000000000	0000

Corrosion-Resistant Stainless Steel

18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to the harsh chemicals that 316 stainless steel can.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Thread Size	Wd., mm	Ht., mm	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel



		M1.6 × 0.35 mm	3.2	1	DIN 439B, ISO 4035	1	000000000	00000


		M2 × 0.4 mm	4	1.2	DIN 439B, ISO 4035	50	000000000	0000
		M2.5 × 0.45 mm	5	1.6	DIN 439B, ISO 4035	50	000000000	0000
		M3 × 0.5 mm	5.5	1.8	DIN 439B, ISO 4035	100	000000000	00000
		M4 × 0.7 mm	7	2.2	DIN 439B, ISO 4035	100	000000000	0000
		M5 × 0.8 mm	8	2.7	DIN 439B, ISO 4035	100	000000000	0000
		M6 × 1 mm	10	3.2	DIN 439B, ISO 4035	100	000000000	0000
		M8 × 1 mm	13	4	DIN 439B, ISO 4035	25	000000000	0000
		M8 × 1.25 mm	13	4	DIN 439B, ISO 4035	50	000000000	00000
		M10 × 1 mm	17	5	DIN 439B, ISO 4035	10	000000000	0000
		M10 × 1.25 mm	17	5	DIN 439B, ISO 4035	10	000000000	0000


		M10 × 1.5 mm	17	5	DIN 439B, ISO 4035	25	000000000	0000
		M12 × 1 mm	19	6	DIN 439B, ISO 4035	10	000000000	00000
		M12 × 1.25 mm	19	6	DIN 439B, ISO 4035	10	000000000	0000
		M12 × 1.5 mm	19	6	DIN 439B, ISO 4035	10	000000000	0000
		M12 × 1.75 mm	19	6	DIN 439B, ISO 4035	20	000000000	0000
		M14 × 1.5 mm	22	7	DIN 439B, ISO 4035	5	000000000	0000
		M14 × 2 mm	22	7	DIN 439B, ISO 4035	5	000000000	0000
		M16 × 1.5 mm	24	8	DIN 439B, ISO 4035	5	000000000	00000
		M16 × 2 mm	24	8	DIN 439B, ISO 4035	5	000000000	0000
		M18 × 1.5 mm	27	9	DIN 439B, ISO 4035	1	000000000	0000


		M18 × 2.5 mm	27	9	DIN 439B, ISO 4035	5	000000000	00000
		M20 × 1.5 mm	30	10	DIN 439B, ISO 4035	1	000000000	0000
		M20 × 2 mm	30	10	DIN 439B, ISO 4035	5	000000000	00000
		M20 × 2.5 mm	30	10	DIN 439B, ISO 4035	5	000000000	00000
		M22 × 1.5 mm	32	11	DIN 439B, ISO 4035	1	000000000	00000
		M22 × 2.5 mm	32	11	DIN 439B, ISO 4035	1	000000000	00000
		M24 × 1.5 mm	36	12	DIN 439B, ISO 4035	1	000000000	0000
		M24 × 2 mm	36	12	DIN 439B, ISO 4035	1	000000000	00000
		M24 × 3 mm	36	12	DIN 439B, ISO 4035	1	000000000	0000
		M30 × 1.5 mm	46	15	DIN 439B, ISO 4035	1	000000000	00000


		M30 × 2 mm	46	15	DIN 439B, ISO 4035	1	000000000	00000
		M30 × 3.5 mm	46	15	DIN 439B, ISO 4035	1	000000000	00000
		M36 × 1.5 mm	55	18	DIN 439B, ISO 4035	1	000000000	00000
		M36 × 4 mm	55	18	DIN 439B, ISO 4035	1	000000000	00000


		Black-Oxide 18-8 Stainless Steel



				M2 × 0.4 mm	4	1.2	DIN 439B, ISO 4035	10	000000000	0000


				M2.5 × 0.45 mm	5	1.6	DIN 439B, ISO 4035	10	000000000	0000
				M3 × 0.5 mm	5.5	1.8	DIN 439B, ISO 4035	10	000000000	0000
				M4 × 0.7 mm	7	2.2	DIN 439B, ISO 4035	5	000000000	0000
				M5 × 0.8 mm	8	2.7	DIN 439B, ISO 4035	5	000000000	0000
				M6 × 1 mm	10	3.2	DIN 439B, ISO 4035	5	000000000	0000
				M8 × 1 mm	13	4	DIN 439B, ISO 4035	5	000000000	0000
				M8 × 1.25 mm	13	4	DIN 439B, ISO 4035	5	000000000	0000
				M10 × 1 mm	17	5	DIN 439B, ISO 4035	5	000000000	0000
				M10 × 1.25 mm	17	5	DIN 439B, ISO 4035	5	000000000	0000
M10 × 1.5 mm				17	5	DIN 439B, ISO 4035	5	000000000	0000


M12 × 1.25 mm	19			6	DIN 439B, ISO 4035	5	000000000	0000
M12 × 1.5 mm	19			6	DIN 439B, ISO 4035	5	000000000	0000
M12 × 1.75 mm	19			6	DIN 439B, ISO 4035	5	000000000	0000
M14 × 1.5 mm	22			7	DIN 439B, ISO 4035	1	000000000	0000
M14 × 2 mm	22			7	DIN 439B, ISO 4035	1	000000000	0000
M16 × 1.5 mm	24			8	DIN 439B, ISO 4035	1	000000000	0000
M16 × 2 mm	24			8	DIN 439B, ISO 4035	1	000000000	0000
M18 × 1.5 mm	27			9	DIN 439B, ISO 4035	1	000000000	0000
M18 × 2.5 mm	27			9	DIN 439B, ISO 4035	1	000000000	0000
M20 × 1.5 mm	30			10	DIN 439B, ISO 4035	1	000000000	0000


M24 × 1.5 mm	36			12	DIN 439B, ISO 4035	1	000000000	0000


Highly Corrosion-Resistant 316 Stainless Steel



				M2 × 0.4 mm	4	1.2	DIN 439B, ISO 4035	25	000000000	0000


				M2.5 × 0.45 mm	5	1.6	DIN 439B, ISO 4035	50	000000000	0000
				M3 × 0.5 mm	5.5	1.8	DIN 439B, ISO 4035	100	000000000	00000
				M4 × 0.7 mm	7	2.2	DIN 439B, ISO 4035	50	000000000	0000
				M5 × 0.8 mm	8	2.7	DIN 439B, ISO 4035	50	000000000	0000
				M6 × 1 mm	10	3.2	DIN 439B, ISO 4035	50	000000000	0000
				M8 × 0.75 mm	13	4	DIN 439B, ISO 4035	10	000000000	0000
				M8 × 1 mm	13	4	DIN 439B, ISO 4035	10	000000000	0000
				M8 × 1.25 mm	13	4	DIN 439B, ISO 4035	50	000000000	00000
				M10 × 1.25 mm	17	5	DIN 439B, ISO 4035	5	000000000	0000
				M10 × 1.5 mm	17	5	DIN 439B, ISO 4035	20	000000000	00000


				M12 × 1.25 mm	19	6	DIN 439B, ISO 4035	1	000000000	0000
				M12 × 1.5 mm	19	6	DIN 439B, ISO 4035	1	000000000	0000
				M12 × 1.75 mm	19	6	DIN 439B, ISO 4035	10	000000000	0000
				M14 × 1.5 mm	22	7	DIN 439B, ISO 4035	1	000000000	0000
				M14 × 2 mm	22	7	DIN 439B, ISO 4035	5	000000000	0000
				M16 × 1.5 mm	24	8	DIN 439B, ISO 4035	1	000000000	0000
				M16 × 2 mm	24	8	DIN 439B, ISO 4035	5	000000000	0000
				M18 × 1.5 mm	27	9	DIN 439B, ISO 4035	1	000000000	0000
				M20 × 2 mm	30	10	DIN 439B, ISO 4035	1	000000000	0000
				M20 × 2.5 mm	30	10	DIN 439B, ISO 4035	1	000000000	0000


				M24 × 3 mm	36	12	DIN 439B, ISO 4035	1	000000000	0000
		M27 × 2 mm		41	13.5	DIN 439B, ISO 4035	1	000000000	00000
		M30 × 2 mm	46	15	DIN 439B, ISO 4035	1	000000000	00000
		M30 × 3.5 mm	46	15	DIN 439B, ISO 4035	1	000000000	00000
		M33 × 2 mm	50	16.5	DIN 439B, ISO 4035	1	000000000	00000
		M36 × 1.5 mm	55	18	DIN 439B, ISO 4035	1	000000000	00000
		M36 × 4 mm	55	18	DIN 439B, ISO 4035	1	000000000	00000

Brass

Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.

Nickel-Plated Brass—The nickel plating offers better corrosion resistance than plain brass to stand up to solvents, salt water, and chemicals. The plating can wear off over time, so these nuts are not recommended for applications that experience a lot of friction or wear.

	Wd., mm	Ht., mm	Specs. Met	Pkg. Qty.		Pkg.
Brass



	M2 × 0.4 mm	4	1.2	DIN 439B, ISO 4035	50	000000000	00000


	M2.5 × 0.45 mm	5	1.6	DIN 439B, ISO 4035	50	000000000	0000
	M3 × 0.5 mm	5.5	1.8	DIN 439B, ISO 4035	100	000000000	0000
	M4 × 0.7 mm	7	2.2	DIN 439B, ISO 4035	100	000000000	00000
	M5 × 0.8 mm	8	2.7	DIN 439B, ISO 4035	100	000000000	00000
	M6 × 1 mm	10	3.2	DIN 439B, ISO 4035	50	000000000	00000
	M8 × 1.25 mm	13	4	DIN 439B, ISO 4035	25	000000000	00000
	M10 × 1.5 mm	17	5	DIN 439B, ISO 4035	5	000000000	0000
	M12 × 1.75 mm	19	6	DIN 439B, ISO 4035	10	000000000	00000
	M16 × 2 mm	24	8	DIN 439B, ISO 4035	1	000000000	0000


	Nickel-Plated Brass



			M2 × 0.4 mm	4	1.2	DIN 439B, ISO 4035	25	000000000	0000


			M2.5 × 0.45 mm	5	1.6	DIN 439B, ISO 4035	25	000000000	0000
			M3 × 0.5 mm	5.5	1.8	DIN 439B, ISO 4035	25	000000000	0000
			M4 × 0.7 mm	7	2.2	DIN 439B, ISO 4035	25	000000000	0000
			M5 × 0.8 mm	8	2.7	DIN 439B, ISO 4035	25	000000000	0000
			M6 × 1 mm	10	3.2	DIN 439B, ISO 4035	10	000000000	0000
			M8 × 1.25 mm	13	4	DIN 439B, ISO 4035	10	000000000	0000
			M10 × 1.5 mm	17	5	DIN 439B, ISO 4035	5	000000000	0000
			M12 × 1.75 mm	19	6	DIN 439B, ISO 4035	1	000000000	0000

Left-Hand-Thread Thin-Profile Hex Nuts

These nuts tighten when turned to the left. Use them with left-hand rods and screws to prevent counterclockwise-moving parts from loosening. About half the height of standard-profile nuts, these fit in spaces with low clearance. You can also use them as jam nuts by threading them against another hex nut to hold it in place.

Medium-Strength Steel

These Grade 5 or Class 04 nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

	Wd., mm	Ht., mm	Fastener Strength Grade/Class	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Steel



	M3 × 0.5 mm	5.5	1.8	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000


	M5 × 0.5 mm	8	2.7	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M5 × 0.8 mm	8	2.7	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M6 × 0.75 mm	10	3.2	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M8 × 1 mm	13	4	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M8 × 1.25 mm	13	4	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M10 × 1 mm	17	5	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M10 × 1.5 mm	17	5	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M12 × 1.75 mm	19	6	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M14 × 1.5 mm	22	7	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M16 × 1.5 mm	24	8	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000


	M16 × 2 mm	24	8	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M18 × 1.5 mm	27	9	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M18 × 2.5 mm	27	9	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	0000
	M20 × 1.5 mm	30	10	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000
	M20 × 2.5 mm	30	10	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000
	M22 × 1.5 mm	32	11	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000
	M22 × 2.5 mm	32	11	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000
	M24 × 1.5 mm	36	12	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000
	M27 × 1.5 mm	41	13.5	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000
	M27 × 2 mm	41	13.5	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000


	M30 × 1.5 mm	46	15	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000
	M30 × 2 mm	46	15	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000
	M30 × 3.5 mm	46	15	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000
	M33 × 3.5 mm	50	16.5	Class 04	ASTM A108, DIN 439B, ISO 4035	1	000000000	00000

Corrosion-Resistant Stainless Steel

18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.

	Wd., mm	Ht., mm	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel



	M3 × 0.35 mm	5.5	1.8	DIN 439B	1	000000000	00000


	M3 × 0.5 mm	5.5	1.8	DIN 439B	1	000000000	0000
	M4 × 0.5 mm	7	2.2	DIN 439B	1	000000000	0000
	M4 × 0.7 mm	7	2.2	DIN 439B	1	000000000	0000
	M5 × 0.5 mm	8	2.7	DIN 439B	1	000000000	0000
	M5 × 0.8 mm	8	2.7	DIN 439B	1	000000000	0000
	M6 × 0.75 mm	10	3.2	DIN 439B	1	000000000	0000
	M6 × 1 mm	10	3.2	DIN 439B	1	000000000	0000
	M8 × 1.25 mm	13	4	DIN 439B	1	000000000	0000
	M10 × 1 mm	17	5	DIN 439B	1	000000000	0000
	M10 × 1.5 mm	17	5	DIN 439B	1	000000000	0000


	M12 × 1.75 mm	19	6	DIN 439B	1	000000000	0000
	M14 × 1.5 mm	22	7	DIN 439B	1	000000000	0000
	M16 × 1.5 mm	24	8	DIN 439B	1	000000000	0000
	M16 × 2 mm	24	8	DIN 439B	1	000000000	0000
	M20 × 1.5 mm	30	10	DIN 439B	1	000000000	00000
	M22 × 1.5 mm	32	11	DIN 439B	1	000000000	00000
	M22 × 2.5 mm	32	11	DIN 439B	1	000000000	00000
	M24 × 1.5 mm	36	12	DIN 439B	1	000000000	00000
	M27 × 1.5 mm	41	13.5	DIN 439B	1	000000000	00000
	M27 × 2 mm	41	13.5	DIN 439B	1	000000000	00000


	M30 × 1.5 mm	46	15	DIN 439B	1	000000000	00000
	M30 × 2 mm	46	15	DIN 439B	1	000000000	00000


	Highly Corrosion-Resistant 316 Stainless Steel



			M5 × 0.5 mm	8	2.7	DIN 439B, ISO 4035	1	000000000	0000


			M6 × 0.75 mm	10	3.2	DIN 439B, ISO 4035	1	000000000	0000
			M6 × 1 mm	10	3.2	DIN 439B, ISO 4035	1	000000000	0000
			M8 × 1 mm	13	4	DIN 439B, ISO 4035	1	000000000	0000
			M8 × 1.25 mm	13	4	DIN 439B, ISO 4035	1	000000000	0000
			M10 × 1 mm	17	5	DIN 439B, ISO 4035	1	000000000	0000
			M10 × 1.25 mm	17	5	DIN 439B	1	000000000	0000
			M10 × 1.5 mm	17	5	DIN 439B, ISO 4035	1	000000000	0000
			M12 × 1.25 mm	19	6	DIN 439B	1	000000000	0000
			M12 × 1.5 mm	19	6	DIN 439B, ISO 4035	1	000000000	0000
			M12 × 1.75 mm	19	6	DIN 439B, ISO 4035	1	000000000	0000


			M14 × 1.5 mm	22	7	DIN 439B, ISO 4035	1	000000000	00000
			M16 × 1.5 mm	24	8	DIN 439B, ISO 4035	1	000000000	00000
			M16 × 2 mm	24	8	DIN 439B, ISO 4035	1	000000000	00000
			M18 × 1.5 mm	27	9	DIN 439B, ISO 4035	1	000000000	00000
			M20 × 1.5 mm	30	10	DIN 439B, ISO 4035	1	000000000	00000
			M22 × 1.5 mm	32	11	DIN 439B, ISO 4035	1	000000000	00000
			M24 × 2 mm	36	12	DIN 439B, ISO 4035	1	000000000	00000
			M30 × 1.5 mm	46	15	DIN 439B, ISO 4035	1	000000000	00000

Brass

	Wd., mm	Ht., mm	Specs. Met		Each
Brass



	M5 × 0.8 mm	8	2.7	DIN 439B, ISO 4035	000000000	00000


	M6 × 1 mm	10	3.2	DIN 439B, ISO 4035	000000000	0000
	M14 × 1.5 mm	22	7	DIN 439B, ISO 4035	000000000	00000
	M16 × 1.5 mm	24	8	DIN 439B, ISO 4035	000000000	00000
	M18 × 1.5 mm	27	9	DIN 439B, ISO 4035	000000000	00000