WHO WE ARE
Rankoo Fastener Co., Ltd is founded in Zhongshan city, Guangdong province with convenient transportation. Rankoo is focus on manufacturing, developing, sales and after sales service with main products of stainless steel fasteners including screws, bolts, nuts, anchors, etc. Our stainless steel products have DIN, ANSI, ISO, GB, JIS standards, and can provide customized products to meet different customers’ demands.
Rankoo always keep “quality goes first, and honesty in service” as its principal, and persist in introducing good quality new products to our customers. Rankoo offers complete solution for its customers with good quality products and excellent after sales service. Ranko is willing to establish honesty and win-win business relationship with customers from all over the world.
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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Engineering Insights: How to Prevent Thread Galling and Optimize Stainless Steel Fastener Performance
Jun 04, 2026
Stainless steel fasteners are widely celebrated across the industrial world for
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Navigating the 2026 Global Stainless Steel Fasteners Wholesale Market: A B2B Procurement Guide
Jun 03, 2026
Navigating the 2026 Global Stainless Steel Fasteners Wholesale Market: A B2B Pro
Stainless Steel 304 Stainless Steel Fasteners RANKOOFASTENER Stainless Steel 316 Stainless Steel 316L Solar Energy Corrosion Protection -
Crucial Roles: Why Renewable Energy and Marine Industries Depend on Stainless Steel Fasteners
May 28, 2026
As global industries shift toward sustainability, infrastructure projects are be
Stainless Steel 304 Stainless Steel Fasteners RANKOOFASTENER Stainless Steel 316 Stainless Steel 316L Solar Energy Corrosion Protection
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Rankoo is focus on manufacturing,
developing, salesand after sales service
Copyright © 2026 Rankoo Fastener Co., LTD.All Rights Reserved.
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