Stainless Steel Hex Bolts & Sets (DIN 931 / DIN 933)
Hex bolts are the most common fasteners used in construction, machinery, and industrial assembly. Our stainless steel hex bolts are made to DIN 931 (half-threaded) and DIN 933 (fully threaded) standards, with matching nuts and washers available as complete sets. They are widely used for securing parts together in structural connections, equipment bases, and outdoor installations where strength and corrosion resistance matter.
We offer these bolts in a range of materials, including A2-70 (304) and A4-80 (316) stainless steel, as well as carbon steel options with grades like Class 4.8, 8.8, 10.9, and 12.9. They come with finishes like plain polished, zinc-plated, or untreated, to suit different environments. Sizes cover thread sizes from M2 to M100, with lengths from 6mm up to 500mm, so you can find the right fit for standard or custom projects.
All bolts are precision manufactured with tight size tolerances, smooth and burr-free surfaces, and clean, bright threads. They are tested for corrosion resistance and strength to ensure reliable performance, even in high-temperature or wet conditions.
Main Advantages
Key Specifications
Product Variations
Choose the exact configuration for your project: fully threaded, half-threaded, full sets, or specialty alloys. All options follow strict quality control and are available in multiple finishes.
🔩 DIN 933 Fully Threaded Hex Bolts
Threaded from end to end, ideal for use with nuts and washers in through-hole applications. Uniform thread engagement for consistent clamping force.
⚙️ DIN 931 Half Threaded Hex Bolts
Partially threaded, designed for applications where the smooth shank provides shear strength. Perfect for structural joints and high-load connections.
📦 Complete Bolt Sets
Bolt + matching nut + flat washer + spring washer, ready for installation. Save time and ensure compatibility for every assembly line.
🏗️ Special Material Options
Available in Duplex, Hastelloy, Inconel, Titanium and other alloys for high-temperature, high-corrosion environments. Ideal for offshore or chemical plants.
Common Applications
These hex bolts are widely used in various industries, including:
- Machinery and equipment assembly
- Structural steel connections
- Marine and offshore construction
- Automotive and transportation systems
- Building and infrastructure projects
- Textile machinery bases
- Outdoor furniture and fence installations
- Food processing and pharmaceutical equipment
- Custom industrial and commercial projects
Whether it is heavy industrial framework or delicate food-grade installations, our hex bolts deliver reliable clamping force and long-lasting corrosion resistance.
Real Customer Case – Bulk Order to Australia
We recently completed a large order of A2-70 stainless steel hex bolts for an Australian customer who supplies industrial equipment to mining and construction sites.
The customer needed 10,000 pieces of M10 x 55mm fully threaded hex bolts with matching nuts and washers. They required consistent quality, smooth threads, and reliable corrosion resistance to handle Australia’s harsh outdoor conditions.
We confirmed the material, finish, and dimensions with the customer, then ran full inspections on thread pitch, hardness, and surface finish. The complete bolt sets were packed in standard cartons with clear labeling and shipped to Australia. After receiving the goods, the customer confirmed the bolts fit perfectly with their equipment and met all their requirements for strength and rust resistance.
This order is a typical example of our ability to meet both standard and bulk custom requirements for fasteners. We keep common sizes in stock and offer fast delivery for repeat orders.
Why Choose DISLAB Precision
At DISLAB Precision, we are your trusted global supplier of industrial parts and accessories, including fasteners, spacers, standoffs, and custom hardware solutions.
Backed by a network of 300+ qualified partner facilities, we deliver over 50 million pieces monthly, supporting both small sample orders and large-volume bulk projects. Every product undergoes strict quality checks for material grade, dimensional accuracy, and surface finish before delivery.
With 40+ engineering and sourcing experts on our team, we ensure consistent quality, reliable lead times, and flexible solutions tailored to your needs. We offer OEM/ODM services, custom material options, and flexible packing to meet the unique requirements of customers worldwide.
If you need industrial parts or accessories for your project or bulk supply, contact us today to discuss your specifications and get a quote.
✅ High quality | 🌍 Global shipping | 📐 Custom drawing support
Direct Contact Channels
- One-stop service: design, customization, production, and global delivery
- OEM/ODM solutions for industrial and export-oriented buyers
