Iso4034 Hex Nuts
Product:HEX NUTS
Standard: ISO4034
Raw material: Q195,SWRCH35K/45K,40CR,42CRMO,etc.
Surface: Plain,zinc plated,black oxide,H.D.G,etc.
Specification Range: M5-M64
Property Class:6,8,10,12
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Product Introduction
Product:HEX NUTS
Standard: ISO4034
Raw material: Q195,SWRCH35K/45K,40CR,42CRMO,etc.
Surface: Plain,zinc plated,black oxide,H.D.G,etc.
Specification Range: M5-M64
Property Class:6,8,10,12
Mechanical Properties
ISO 4034 Hexagon Nuts - Introduction, Functions & Performance
Introduction
ISO 4034 specifies Style 1 hexagon nuts, product grade C, corresponding to the Chinese standard GB/T 41.
It is the most widely used general-purpose fastener worldwide, focusing on cost efficiency and easy installation.
· Standard:
ISO 4034:2012 (widely applied even after obsolescence)
01
· Product:
Style 1 hexagon nuts
02
· Accuracy:
Product grade C (coarse tolerance, non precision applications)
03
· Thread range:
M5 to M64 (mainly metric coarse thread)
04
· Equivalent GB:
GB/T 41 2016 Hexagon nuts, product grade C
05
Core Functions
Mechanical fastening:
Used with bolts or studs to provide clamping force and secure assembled parts against loosening or displacement.
Torque transmission:
Hexagonal shape enables stable torque application with wrenches or sockets.
High interchangeability:
Standardized dimensions ensure universal fit across industries and regions.
Cost-effective:
Simple manufacturing process and low unit cost for mass use.
Performance
Mechanical Properties
Property classes:
M5–M16: Class 5
Above M16: Class 4 or Class 5
Strength level: Medium low strength, not for high stress or impact loaded applications.
Thread tolerance: 6H (internal thread), compatible with standard 6g external threads.
Materials & Surface Finishes • Common materials:
◦ Carbon steel (e.g. Q235, 45#) ◦ Stainless steel 304/316 (A2‑50, A4‑50) ◦ Brass, copper alloy, nickel‑based alloy (for special environments)
Surface treatments:Black oxide, electro galvanizing, hot dip galvanizing, Dacromet, phosphating, etc., for corrosion resistance.
Structure & Application Conditions
Standard hexagon shape with standard chamfer for easy assembly.
Standard thickness (Style 1), better versatility than thin nuts.
Operating temperature: Normally −30 °C to +150 °C.
Suitable for general indoor and outdoor environments;Not suitable for strong corrosion, high temperature, high vibration or high pressure applications.
Typical Applications
• General machinery, agricultural machinery, construction machinery
• Steel structures, scaffolding, pipe supports
• Non‑critical automotive assemblies
• Furniture, home appliances, shelves
• Basic fixing in electrical and communication equipment
Packaging and Logistics
- Main packaging materials include: small bags, small boxes, cartons, pallets and iron drums.
- Customized packaging is available according to customer requirements.
- Flexible bulk ordering plans are provided, and both transportation terms and delivery schedules are negotiable.
Certification and Warranty
We are certified by ISO9001:2015, IATF16949:2016, and other international quality standard certifications.
Long-term quality warranty and comprehensive after-sales service are provided.
Established in 2005, our company has evolved over two decades of continuous development into a leading regional enterprise in the fastener industry with fully automated end-to-end production. With an annual output value exceeding RMB 130 million, our product range covers diverse market segments from mid-range to high-end and is distributed worldwide
Our factory & quipment
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