Factory DIN934 Carbon Steel Zinc Plated Black Oxide Yellow Hex Hexagonal Nut

Product Description

Product Description

DIN 934 Hexagon Nuts / Metric Standard Hex Nuts

Product Overview
DIN 934 Hexagon Nuts are the most widely used industrial threaded fasteners globally. Featuring a classic six-sided design engineered for high efficiency and reliable clamping force, they offer excellent torque distribution and ease of installation with standard wrenching tools. Perfectly compatible with ISO/DIN metric bolts, screws, and threaded rods, DIN 934 is the industry-standard component across heavy machinery, automotive manufacturing, and structural construction.

Specifications & Size Range
Size Range: M3 – M52 (Common sizes: M3, M4, M5, M6, M8, M10, M12, M16, M20, M24, M30, M36).
Thread Pitch : Available in standard Metric Coarse Threads and specialized Metric Fine Threads (e.g., M10×1, M12×1.25, M12×1.5, M16×1.5) for precision or high-vibration applications.
Thread Tolerance: According to international standards.

Materials & Property Classes
Carbon Steel & Alloy Steel:  Class 6 / Class 8: Ideal for general machinery, light-to-medium tension assemblies.

Class 10 / Class 12: High-tensile fasteners matching Class 10.9 and 12.9 heavy-duty structural bolts. Extreme resistance to thread stripping under massive pre-load.
Stainless Steel :  A2-70 (SS304): Outstanding corrosion resistance for general outdoor, food processing, and medical equipment.

A4-70 / A4-80 (SS316): Enhanced molybdenum alloyed stainless steel for superior resistance against chlorides, acids, and aggressive marine environments. 
Brass & Copper Alloys: Offers exceptional electrical conductivity and thermal performance; primarily used in electrical engineering and plumbing fixtures.

Surface Treatment & Finishes

Plain / Oiled : Natural metallic finish protected by a light layer of anti-rust oil. Cost-effective and optimal for internal or oil-submerged mechanical systems.
Zinc Plating (Blue/White/Yellow): Electro-galvanized coating with an eco-friendly Cr3+ finish, providing everyday corrosion resistance (24–72 hours salt spray test). 
Hot-Dip Galvanized (HDG): Thicker zinc layer fused at high temperatures. Delivers extreme outdoor protection (500+ hours salt spray) for structural engineering, coastal utilities, and solar tracking arrays.
Dacromet / Geomet: High-performance, thin-film coating. Engineered specifically for high-strength steel (Class 10/12) to ensure zero risk of hydrogen embrittlement. 
Black Oxide: Sleek matte-black chemical finish that provides mild corrosion resistance without altering the tight dimensional tolerances of precision threads. 

Industrial Applications
Heavy Machinery & Industrial Equipment : Securing high-stress joints, gearboxes, pumps, and agricultural conveyors subject to mechanical movement. 
Steel Structure & Construction Engineering : Fastening structural frameworks, building brackets, bridges, and solar PV mounting systems alongside high-strength bolts and washers. 
Automotive & Rail Transit: Extensively used in passenger vehicle chassis assemblies, suspension frames, engine brackets, and railway wagon structures.
Petrochemical & Piping Infrastructure: Paired with stud bolts to clamp high-pressure pipeline flanges, process valves, and fluid treatment vessels.

Why Choose Us? 

As a professional B2B fastener manufacturer, we provide reliable DIN 934 hex nuts with strict QC, custom packaging, and complete Mill Test Certifications. Contact us today for factory-direct prices, samples, and global shipping solutions!

Specification

Products Name	Metal Nuts
Standards	DIN 934; DIN936; DIN985; DIN971; DIN6915; DIN315; DIN980; DIN 7967;DIN 931;DIN436;JIS; ASME, GB
Surface Treatment	Plain/ Self Color (S/C); Polished; Zinc Plated (ZP); Zinc Yellow (Y2P) Zinc CR 3+; Oxide Black; HDG (Hot Dip Galvanized); Nickel Plated Phosphated ; Mechanical Galvanized; Dacromet; Geomet;  Zinc Nickel Alloy Plated;Tin Plated
Material	304/316 Stainless Steel; Brass; Bronze; Steel; Alluminum Cooper; Silicon Bronze; Alloy
Hardness ( for carbon steel material)	Grade 4.8/ 6.8/ 8.8/10.9/12.9;  Q235 (90-200HV); #45 (1045); #60;  38-45HRC ( above 300HV)
Heat Treatment ( for carbon steel material)	Tempering;  Hardening;  Spheroidizing;  Stress Relieving.
Size	M1 -M36; Customized
Avaliable Packing	Bulk in cartons +wood Pallet or according to customer special demand
Application	Food/ Chemical/ Pharmaceutical Industries, Aerospace, High-speed Rail, Automotive, Wire Connectors, Engines, Plumbing Fittings, Electronic Equipment
Delivery Method	By sea/ By air/ By express

Packing & Delivery

Packing:
Products are packed in carton boxes or plastic bags. We offer OEM service, so customized packing is warmly welcomed.

Delivery:
1. Express such as FedEX/ DHL/ UPS/ TNT for samples.
2. By Air or by Sea for mass production. Please advice airport or destination port.
3. Customers specify freight forwarders or shipping methods.

Company Profile

Hangzhou Better Fastener Technology Co., Ltd.

Founded in 2001, Hangzhou Better Fastener Technology Co., Ltd. specializes in fastener R&D, production and sales. Leveraging Jiaxing Fastener Industry Belt's advantages, it has a mature supply chain, offering quality products and customized solutions globally.
Our main products include standard & non-standard customization per drawings/parameters (washers, bolts, nuts, stamping parts, etc.) for petrochemicals, construction and machinery and more, 
Adhering to international standards (ASTM, ANSI, ISO, etc.) and strict quality control, its products perform well. With monthly output over 500 tons, we meet bulk orders timely.
With 20+ years of international trade experience, we serves 80+ countries (Europe, America, Asia, etc.) via "high standards" service. We have professional teams covering R&D, production to after-sales.
Upholding "Better fastener, quality, service", we're seeking win-win cooperation with global customers for new industry value.

FAQ

Q1:Why is there oil in the product? 
A:There will be a layer of anti-rust oil on the surface of the product, in order to prevent the product from rusting, but it may feel a little dirty during use
 
Q2:How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. Or it is 30-45 days if the goods are not in stock. It's according to quantity.
 
Q3: Do you provide OEM/ ODM service?
 A: Yes, we welcome OEM and ODM absolutely, and we also have strong ability to carry your OEM&ODM orders.
 
Q4: Do you offer sample? 
A: Yes. We could provie samples ( standard & in stock) according to your demand for free charge but we're not responsible for freight cost.

Q5: Which industries can your products be applicated?

A: Our fasteners can be used in many industries, Such as Food/ Chemical/ Pharmaceutical Industries, Aerospace, High-speed Rail, Automotive, Wire Connectors, Engines, Plumbing Fittings, Electronic Equipment, Construction, etc.