WHO WE ARE
Your Reliable Stainless Steel Fastener Manufacturer
Rankoo Fastener Co., Ltd. is a specialized manufacturer based in Zhongshan, Guangdong — one of China's most dynamic manufacturing hubs. We focus exclusively on stainless steel fasteners: bolts, nuts, washers, screws, anchors, and custom-engineered components.
Our products meet international standards including DIN, ANSI, ISO, GB, and JIS. With over 750 product types in our catalog and the ability to produce custom parts to your exact specifications, we serve customers across 23+ countries — from Southeast Asia to Europe, Australia to the Americas.
Quality first. Service always. That's the Rankoo promise.
245 +
Service Case
30 +
Exporting Country
350 +
Covering Industry
1000 +
Product Type
WHAT WE DO
Our Product Range
Explore our wide range of fastener designed for durability, style, and pformance
Bolts
Mainly used in fields such as mechanical manufacturing and construction engineering.
Nuts
By engaging the internal thread with the external thread of the bolt, two or more components are firmly connected to ensure the integrity and stability of the equipment.
Washers
Gaskets are key components in mechanical connections, mainly used to disperse pressure, prevent loosening, and seal
Screws
The application range of screws is very wide, covering a wide range of scenarios from daily necessities to high-end industrial equipment
Other
There are numerous varieties and specifications with different performance and uses, and the degree of standardization, serialization, and generalization is also extremely high
Bolts
Mainly used in fields such as mechanical manufacturing and construction engineering.
Nuts
By engaging the internal thread with the external thread of the bolt, two or more components are firmly connected to ensure the integrity and stability of the equipment.
Washers
Gaskets are key components in mechanical connections, mainly used to disperse pressure, prevent loosening, and seal
Screws
The application range of screws is very wide, covering a wide range of scenarios from daily necessities to high-end industrial equipment
Other
There are numerous varieties and specifications with different performance and uses, and the degree of standardization, serialization, and generalization is also extremely high
Products
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DIN 933 Hex Bolt Stainless Steel 304 316 A2-70 A4-80 M1.6-M48
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DIN912 Hex Socket Head Cap Screw Stainless Steel 304 316 M1.4-M30
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DIN934 Hex Nut Stainless Steel 304 316 A2 A4
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DIN125 Flat Washer Stainless Steel 304 316 Flat Washer M1.6-M64
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U bolt A2 A4 Customized Stainless Steel 304 316 M5-M12
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DIN6921 GB5787 Hex Flange Bolt Stainless Steel 304 316 A2 A4 M4-M12
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DIN931 Hex Bolt Stainless Steel 304 316 A2-70 A4-80 M5-M39
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DIN985 Hex Nylon Lock NutsStainless Steel 304 316 A2 A4 M2-M36
Why Choose RANKOO
Please contact us to provide you with satisfactory products and become a reliable supplier and service provider in the industry
Premium Quality Manufacturing
_____
Strict quality control ensures every product meets international standards.
Advanced Production Equipment
_____
Equipped with CNC machines and automated production lines.
Strong R&D Capability
_____
Professional engineers support product innovation and customization.
Global Export Experience
_____
Trusted by clients across Southeast Asia and worldwide markets.
Why Choose RANKOO
Please contact us to provide you with satisfactory products and become a reliable supplier and service provider in the industry
Premium Quality Manufacturing
_____
Strict quality control ensures every product meets international standards.
Advanced Production Equipment
_____
Equipped with CNC machines and automated production lines.
Strong R&D Capability
_____
Professional engineers support product innovation and customization.
Global Export Experience
_____
Trusted by clients across Southeast Asia and worldwide markets.
News
Stay updated with industry trends, product innovations, and company news.
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The Rankoo Story
Jul 08, 2026
The Rankoo StoryWe started with one goal: make stainless steel fastene
Stainless Steel 304 Stainless Steel Fasteners RANKOOFASTENER Stainless Steel 316 Corrosion Protection Customized -
Customize own mark for the customer. Ultra-long hexagonal half-threaded bolt, DIN912 M6*180.
Jul 06, 2026
Customize own mark for the customer. Ultra-long hexagonal half-threaded bolt, DI
Stainless Steel 304 Stainless Steel Fasteners RANKOOFASTENER Corrosion Protection DIN912 -
Customers requested custom-made stainless steel 316 double-headed bolts based on the drawings
Jul 04, 2026
Australian customers requested custom-made stainless steel 316 double-headed bol
Stainless Steel Fasteners RANKOOFASTENER Stainless Steel 316 Corrosion Protection Customized
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