Larhe Head Hex Socket Drive Serrated Flange Nut M4-M20 Stainless Steel 304/316

• Customization: Available
• Material: Stainless Steel
• Type: Round Head
• Model NO.: CC-1038A
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN, ANSI, GB, JIS, GOST, BSW
• Grade: 8.8
• Mode of Action: Hand Screwing
• Thread Diameter: 4.9 mm
• Management System: GB/T19001-2016/ISO9001:2015
• Nut Length: 9 mm
• Specification Available: 5mm,6mm 7mm 8mm 9mm 10mm
• Nut Thread Available: M4,M5,M6,M8
• Custom: Yes
• Mode of Transport: Air, Sea, Road Transport
• Thread Available: Unf, Unc, Metric Thread
• Finish Available: Bright Nickel, Zinc Plated, Black Zinc
• Transport Package: Box/Carton/Pallet/Plywood Cases
• Specification: M5 X 7.9 mm
• Trademark: CHANG CHUN
• Origin: Xiamen China
• HS Code: 7318160000
• Production Capacity: 800 Tons / Month
• Package Size: 27.00cm * 20.00cm * 16.00cm
• Package Gross Weight: 20.000kg

Product Description

 

Product Description

Hex Socket Large Flange Nuts (also known as Large Head Hex Socket Drive Nuts) are high-performance fasteners combining a large integrated flange with an internal hex socket drive.
Core Advantages

-Superior Load Distribution: The large flange acts as a built in washer, spreading clamping force over a much larger surface area, reducing bearing pressure and preventing material deformation, especially on thin or soft substrates.

-Excellent Vibration Resistance: Serrated flanges (optional) bite into the mating surface, creating a mechanical lock that resists loosening under heavy vibration, often eliminating the need for additional lock washers.

-High Torque Transmission: The internal hex socket design allows for efficient torque application with an Allen key, enabling higher tightening torques in confined spaces without slippage.

-Space saving & Aesthetic: The low profile, large flange design provides a stable base while maintaining a clean, finished appearance, ideal for visible assemblies.

-Material & Strength: Available in carbon steel (grades 4.8, 8.8, 10.9, 12.9), stainless steel (304, 316), and alloy steel, offering options for high strength, corrosion resistance, and durability.

-Efficient Assembly: One piece design combines nut and washer functions, simplifying inventory, reducing part count, and speeding up assembly lines.


 

Types of Nuts & Application Scope
Nut Type	Design Feature	Industry Applications
Hex Nuts	Standard 6-sided profile, general-purpose fastening.	Machinery assemblies, automotive components, general industrial fastening.
Lock Nuts	Nylon insert (Nyloc), deformed threads, or serrated flange to resist vibration loosening.	Aerospace systems, robotics, engine mounts, off-road vehicles, high-vibration environments.
Slotted / Castle Nuts	Slots cut axially to accommodate a cotter pin for positive locking.	Aircraft control systems, steering linkages, suspension components, safety-critical joints.
Knurled Thumb Nuts	Textured outer surface (knurling) for manual operation without tools.	3D printers, CNC machines, laboratory fixtures, photography equipment, battery compartments, access panels
Flange Nuts	Integrated wide flange to distribute pressure, often serrated.	Automotive chassis, plumbing, joining soft materials.
Wing Nuts	Protruding "wings" for quick hand tightening and removal.	Access panels, temporary fixtures, exhibition equipment, consumer goods.
Cap Nuts / Acorn Nuts	Domed top covers exposed bolt threads for safety and aesthetics.	Food machinery, furniture, decorative automotive applications.
T-Nuts	Designed to be inserted into a T-slot.	Work holding fixtures, machine tables (CNC routers), aluminum profiles.

 

Detailed Photos

 

 

 

Company Profile

 

Our products meets the international quality system,such as ANSI and BS. We provide the high quality and professional fastener for construction steel, car, machinery and equipment, energy,furniture, ship, railway and so on.  In the whole production process, We have professional engineers to monitor the quality,we can guarantee the quality of our product.   We are committed to continuously improvement and innovation, to meet customer requirements, provide qualified parts, competitive prices and best service to every customer.    We would like to thank you for your interest in our company and hope that our website will help you. If you need more information, please contact our sales department.

 

Factory corner

FAQ

 

Are you a Trading company or a Manufacturer?

We are an Industry&Trade Company .
 

What's your product range?

Our product range includes screws, nuts, knobs, bolts, washers, rivet, anchor and CNC parts. We strictly implement various quality standards like GB, ISO, DIN, JIS, AISI NFE and BSW.Non-standard products also accepted.
 

Which industry field are your product is suitable used in ?

Our products are  widely use in machine assembling, electronics, constructional engineering furniture cabinets, etc.
 

Why should I choose you? What's your advantages? Industries you are serving?

We are a professional manufacturer and have 9 years production and management experience in the field of fasteners .
We can provide our customers with a good solution in the area of production design, production process,packaging and after-sale service.Customer satisfaction is our sole pursuit.
 

What services do you offer?

We provide Non-standard/standard/OEM/ODM/customized service.
 

After Sales Service

 

1.The goods must meet the applicable quality standards of the manufacturing country.
 

2. The product warranty period of 12 ( twelve )  months.
 

3. If quality defects are found during the warranty period, the seller is obliged to repair the defects or replace the defective parts.
 

4. If the buyer finds that the quantity is short within 20 calendar days after receiving the goods and submits to the Seller, the seller shall supplement the quantity to the buyer, or convert it into an amount to compensate the buyer.
 

5. The buyer needs the third-party company certification issued by the seller, such as RoHS, REACH report, etc. to inform the seller before the inquiry.
 

Any more questions or demands, pls feel free to contact me!