Welcome to HAILIANG
Jiangsu Hailiang Dongfang Import and Export Co., Ltd. is a professional fastener manufacturer, supplier, and exporter with over 20 years of experience. We specialize in high-quality fastener products, including a comprehensive range of bolts, nuts, screws, washers, anchors, and rivets. As an experienced fastener factory in China, we offer competitive prices, fast delivery, and strict adherence to ISO standards. Together with our Hong Kong branch, HAILIANG GROUP LIMITED, our strong global network and commitment to quality make us a trusted partner for clients worldwide.
Competitive Price
Deliver Faster
Quality Promise
Third-Party Inspection
30+
Factories
1-on-1
Service
24/7
Available
100+
Exporting Countries
Our Product Categories
Bolt
Bolts are threaded fasteners with various head types and materials, used across industries. Hailiang offers stainless & carbon steel bolts, M3–M100, with custom coatings and full traceability.
Nut
Nuts are internally threaded fasteners in various styles and materials, used with bolts across industries. Hailiang stocks M3–M100 sizes, with multiple coatings and standards, ensuring durability and corrosion resistance.
Screw
Screws securely join materials across industries, with types like machine, wood, self-tapping, and concrete. Available in steel, stainless, brass — with coatings and standards for strength, corrosion resistance, and precise fit.
Our Blog
Hex Bolt vs. Heavy Hex Bolt: How to Choose the Right One Based on Load Requirements
March 9, 2023
Why Bolt Selection Starts With Understanding the Difference Hex bolts and heavy hex bolts may look similar at a glance — both feature six-sided heads and external threading — but their structural differences significantly impact load capacity, fatigue resistance, and suitability for specific applications. Choosing the wrong type can lead to joint failure, maintenance overload,
Are Flange Bolts and Flange Nuts a Perfect Match? A Complete Breakdown of Flange Fastener Systems
November 30, 2022
Why Flange Fasteners Are More Than Just a Design Choice Flange bolts and flange nuts are often seen together in automotive, pipeline, and industrial assemblies — leading many to assume they are a “perfect match.” But is that always true? This article dives into the mechanics, advantages, and ideal use cases for flange fastener systems,
U-Bolt Selection Pitfall Guide: How Material, Bend Radius & Surface Treatment Impact Service Life
June 12, 2022
Why U-Bolts Fail — And How to Prevent It U-bolts may look simple, but their failure in critical applications — like securing truck axles or industrial piping — can lead to catastrophic downtime, safety hazards, or costly recalls. The root causes often trace back to three overlooked factors: material selection, bend radius design, and surface
