Marine
Hengrui Fastener Products for Marine Industry
Shanghai Hengrui supplies marine-grade fasteners and hardware used in shipbuilding, docks, offshore structures, and port facilities.
We manufacture stainless steel and hot-dip galvanized bolts, nuts, washers, and U-bolts that resist corrosion from saltwater and humidity. Designed for steel-to-wood and steel-to-steel joints in decks, hull fittings, and equipment mounts.
We provide materials such as A2/A4 stainless steel (304/316) and carbon steel with marine coatings. Common surface treatments include zinc-nickel, Dacromet, and hot-dip galvanizing for extended service life.
Commonly Used Products
U-Bolts and Clamps
Anchor Bolts
Hex Bolts
Threaded Rods
Why Marine Trust Shanghai Hengrui
Marine-Grade Materials
We use A2/A4 stainless steel (304/316) and hot-dip galvanized carbon steel, ensuring excellent performance in saltwater and humid environments.
Strong Corrosion Protection
Coatings such as zinc-nickel, Dacromet, and HDG extend service life, meeting the high standards required for marine and coastal projects.
Custom Production Capability
We produce U-bolts, anchors, and special-thread parts based on drawings, supporting both standard and non-standard marine applications.
Quality Control & Reliability
All fasteners are tested for tensile strength, coating thickness, and salt spray resistance, manufactured under ISO 9001:2015 to guarantee consistent quality.
Your Trusted Fastener Partner
Since 2020, our commitment to quality, customer satisfaction, and on-time delivery has been the foundation of our success. We continuously leverage our engineering knowledge, manufacturing capabilities, and innovative solutions to meet the unique needs of each project, ensuring that every fastener we deliver meets the highest standards.
Frequently Asked Questions
A4 (316) stainless steel and hot-dip galvanized carbon steel are preferred for long-term resistance to corrosion in seawater and coastal air.
We apply zinc-nickel, Dacromet, and hot-dip galvanizing, which provide strong resistance to rust and salt spray.
Yes. We supply bolts, nuts, and anchors designed for offshore platforms, piers, docks, and ship maintenance structures.
With proper material and coating selection, Hengrui fasteners can last 15–25 years with minimal corrosion in typical marine exposure.
Yes, we provide material certificates, salt-spray test reports, and coating inspection data with every shipment
Custom Fastener Made Easy
At HengRui, We turn complex Into Simple! Follow the following 3 steps to start today!
Tell Us What You Need
Tell us as specific as possible of your needs, provide the drawing, reference picture and share your idea.
Get Solution & Quote
We will work on the best solution according to your requirements and drawing, the specific quote will be provided within 24 hours.
Approve for Mass Production
We will start mass production after getting your approval and deposit, and we will handle the shipment.
We Are Ready To Help You
- Get free sample!! Contact us today
- We will contact you within 24 hours
- Minimum order quantity: 1,000 Kg
