ISO 4032 Hexagon Nuts

Our ISO 4032 Hexagon Nuts represent the definitive international standard for general-purpose metric fastening. As the most widely recognized and specified hex nut worldwide, they are engineered to deliver reliable, high-strength performance across an unparalleled range of industrial, commercial, and consumer applications. Manufactured in strict compliance with ISO 4032 dimensional standards and ISO 898-2 mechanical property standards, these nuts guarantee consistent quality, perfect thread fit, and assured compatibility with ISO-metric bolts and threaded components. They are the fundamental, trusted choice for designers, engineers, and manufacturers who require uncompromising quality in their assemblies.

Description

Product Details

Name	Hex Nuts	Materials	Carbon Steel/Stainless Steel
Standards	ISO4032	Strength level	4 8 10 12 A2-70 A4-70 A4-80
Mechanical Properties	ISO 898-2	Threads	ISO 965
Size	M1.6-M100	Surface finish	ZP\HDG\BLACK\Dacromet etc.
Length	/	Samples	Available

Product Parameters

Thread Size		M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6	(M7)	M8	M10	M12	(M14)	M16	(M18)
D		M1.6	M2	M2.5	M3	(M3.5)	M4	grade A	grade A	grade A	grade A	grade A	grade A	grade A	grade A	grade B
P	Pitch	0.35	0.4	0.45	0.5	0.6	0.7	0.8	1	1	1.25	1.5	1.75	2	2	2.5
c	max	0.25	0.25	0.25	0.4	0.4	0.4	0.5	0.5	0.6	0.6	0.6	0.6	0.6	0.8	0.8
c	min	0.1	0.1	0.1	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.2	0.2
da	max	1.84	2.3	2.88	3.45	4.03	4.6	5.75	6.75	7.75	8.75	10.8	12.96	15.12	17.28	19.44
da	min	1.6	2	2.5	3	3.5	4	5	6	7	8	10	12	14	16	18
dw	min	2.54	3.34	4.34	4.84	5.34	6.2	7.2	8.88	9.63	11.63	14.63	16.63	19.64	22.49	24.85
e	min	3.41	4.32	5.45	6.01	6.58	7.66	8.79	11.05	12.12	14.38	17.77	20.03	23.36	26.75	29.56
m	max	1.3	1.6	2	2.4	2.8	3.2	4.7	5.2	6.5	6.8	8.4	10.8	12.8	14.8	15.8
m	min	1.05	1.35	1.75	2.15	2.55	2.9	4.4	4.9	6.14	6.44	8.04	10.37	12.1	14.1	15.1
mw	min	0.84	1.08	1.4	1.72	2.04	2.32	3.52	3.92	4.91	5.15	6.43	8.3	9.68	11.28	12.08
s	max=nominal size	3.2	4	5	5.5	6	7	8	10	11	13	16	18	21	24	27
s	min	3.02	3.82	4.82	5.32	5.82	6.78	7.78	9.78	10.73	12.73	15.73	17.73	20.67	23.67	26.16

Thread Size		M20	(M22)	M24	(M27)	M30	(M33)	M36	(M39)	M42	(M45)	M48	(M52)	M56	(M60)	M64
D		grade B	grade B	grade B	grade B	grade B	grade B	grade B	grade B	M42	(M45)	M48	(M52)	M56	(M60)	M64
P	Pitch	2.5	2.5	3	3	3.5	3.5	4	4	4.5	4.5	5	5	5.5	5.5	6
c	max	0.8	0.8	0.8	0.8	0.8	0.8	0.8	1	1	1	1	1	1	1	1
c	min	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
da	max	21.6	23.76	25.92	29.16	32.4	35.64	38.88	42.12	45.36	48.6	51.84	56.16	60.48	64.8	69.12
da	min	20	22	24	27	30	33	36	39	42	45	48	52	56	60	64
dw	min	27.7	31.35	33.25	38	42.75	46.55	51.11	55.86	59.95	64.7	69.45	74.2	78.66	83.41	88.16
e	min	32.95	37.29	39.55	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25	93.56	99.21	104.86
m	max	18	19.4	21.5	23.8	25.6	28.7	31	33.4	34	36	38	42	45	48	51
m	min	16.9	18.1	20.2	22.5	24.3	27.4	29.4	31.8	32.4	34.4	36.4	40.4	43.4	46.4	49.1
mw	min	13.52	14.48	16.16	18	19.44	21.92	23.52	25.44	25.92	27.52	29.12	32.32	34.72	37.12	39.28
s	max=nominal size	30	34	36	41	46	50	55	60	65	70	75	80	85	90	95
s	min	29.16	33	35	40	45	49	53.8	58.8	63.1	68.1	73.1	78.1	82.8	87.8	92.8

Key Features & Benefits

Universal Interchangeability: Full compliance with ISO 4032 ensures seamless fit and function with any ISO-metric bolt, stud, or equipment thread globally, simplifying procurement, assembly, and maintenance in international markets.

Optimal Strength-to-Weight Design: The precisely calculated dimensions—including width across flats, thickness, and chamfer—provide the ideal balance of material efficiency, wrenchability, and load-bearing capacity for the vast majority of fastening tasks.

Guaranteed Mechanical Properties: Supplied in standardized property classes (e.g., 8, 10, 12), each nut meets defined requirements for hardness, proof load, and tensile strength, providing engineers with predictable and certifiable performance.

Superior Wrenching & Torque Application: The full hexagon profile with accurate flats and corners allows for optimal contact with standard wrenches and sockets, enabling precise torque application, reducing tool wear, and preventing rounding.

Broad Industry Acceptance: As the foundational nut standard referenced in countless engineering drawings, OEM specifications, and maintenance manuals, using ISO 4032 nuts future-proofs your assembly and ensures part availability.

Comprehensive Material & Finish Selection: Available in every common commercial material and protective finish, from carbon steel to stainless steel and from zinc plating to advanced corrosion-resistant coatings.

Intended Applications

The versatility of ISO 4032 nuts makes them indispensable across virtually every sector:

General Manufacturing & Machinery: The default nut for equipment assembly, frames, guards, and fixtures.

Automotive & Transportation: Used in chassis, engines, interiors, and across the supply chain for component manufacturing.

Construction & Infrastructure: For structural steelwork (with appropriate grade), scaffolding, and building services.

Electronics & White Goods: Securing internal components and external casings.

Energy & Heavy Industry: In power generation, mining, and material handling equipment.

Maintenance, Repair & Operations (MRO): The universal replacement nut for repair kits and facility upkeep.

Installation & Torque Guidelines

1.Select the Correct Property Class: Match or exceed the property class of the mating bolt. (e.g., Use a Class 10 nut with a Class 10.9 bolt).

2.Ensure Thread Compatibility: Verify metric thread designation (e.g., M12 x 1.75) matches the bolt.

3.Use Proper Tools: Always use correctly sized, well-maintained wrenches or sockets that fully engage the nut's flats.

4.Apply Recommended Torque: Follow industry-standard torque tables based on nut/bolt size, property class, lubrication, and joint material to achieve proper clamp load without damaging the fastener.

Why Choose Our ISO 4032 Hexagon Nuts?

Unmatched Standard Compliance: We provide full traceability and can supply material certifications (e.g., 3.1 according to EN 10204) to meet the most stringent quality assurance protocols.

Global Supply Chain Expertise: We are equipped to support multinational projects with reliable volume supply, consistent quality, and all necessary documentation.

Engineering Partner: Our technical team can assist with grade selection, corrosion protection strategy, and application-specific recommendations to optimize your design.

Cost-Effective Excellence: By specializing in standardized fasteners, we offer superior quality at highly competitive prices, delivering exceptional value for both small batches and container loads.

About Us

SEVEN REASONS WHY SHOULD YOU CHOOSE HAOSHENG FASTENER

1.Focus on Fasteners

Deeply cultivating the fastener industry for 30 years, serving a total of 10000+ customers

2.Scale and Strength

The factory covers an area of 20000 square meters and has an annual output exceeding 60000 tons

3.Honor and Qualifications

We own ISO9001 ISO14001 and ISO45001 three major System Certifications and are High-tech Enterprise in Hebei Province

4.Internationalization

We have exported to 38 countries and regions and our duty for the EU anti-dumping is 39.6%.

5.Free Sample

We accept free samples for your convenience to inspect if our quality meet your needs.

6.Spot Goods

The inventory of hot selling products reaches up to 2000 tons, meeting the needs of different customers.

7.Source factory

We support customization and have a wide range of fastener products. The price is competitive and there are no intermediaries.

Certificate

Production Process

Customers

FAQ

Q1: Are you manufacturer or trading company?

A1: We are professional manufacturer with 30 years experience. We accept OEM, ODM as your needs and assure the competitive price and quality for you.

Q2: Can you offer me sample?

A2: Yes, we can offer you sample to test and check quality.

Q3: How does your factory do regarding quality control?

A3: We have professional QC team to inspect each items from the links of production to package.

Q4: How about your delivery time?

A4: Normally it will take 30-35 days after receiving your deposit.

Q5: What is your terms of payment?

A5: T/T 30% as deposit, and 70% balance before delivery.

Q6: What advantages we have?

A6 1.Strict QC: For each order, strict inspection will be carried out by the QC department before shipping. The bad quality will be avoid within door.

2.Shipping: We have shipping department and forwarder, so we can promise faster delivery and make the goods well protected.

3.Our factory professional production metal box drawer system ,hinge，concealed drawer slides ,ball bearing slides , etc furniture fittings.

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