STAINLESS STEEL BOLTS
Company Profile
Shandong Boltec Metal Industry Co., Ltd. is a professional manufacturer specializing in stainless steel fasteners, with over 15 years of industry experience. We are committed to providing reliable, durable and cost-effective fastening solutions to global customers. Our stainless steel bolts are manufactured to the highest standards, ensuring superior performance in diverse applications.
Product Features
Superior Material Quality: Made from premium 304/316 stainless steel with excellent corrosion resistance and mechanical properties. Alternative grades such as 410 and Duplex are also available.
Precision Manufacturing: Advanced cold forging and CNC machining equipment ensures consistent thread accuracy, dimensional precision, and reliable performance.
Surface Finish Options: Passivation, Ruspert, Dacromet, Procote, and other surface treatments available to enhance corrosion resistance and extend service life.
Wide Product Range: Comprehensive offerings including Hex Head Bolts, Socket Head Cap Screws, Carriage Bolts, Eye Bolts, Anchor Bolts, and more.
Customization Capability: Flexible production to meet specific customer requirements for size, thread type, length, head style, and packaging.
More Information for Stainless Steel Bolts
| Item | Details |
| Standards | DIN 931 / DIN 933 / DIN 603 / DIN 444 / DIN 580, ISO 4014 / ISO 4017 / ISO 4018, ANSI / ASME B18.2.1, JIS B1180 |
| Material | Stainless Steel 304 (A2), 316 (A4), 410, 316L, Duplex 2205 |
| Property Classes | A2-70, A4-80, A2-50, A4-70 (A2-70 = 700 MPa tensile strength) |
| Head Types | Hex Head, Socket Head Cap (Allen), Countersunk, Button Head, Cup Head, Carriage, T-Head, Eye Bolt, U-Bolt, Hook Bolt |
| Drive Types | External Hex, Internal Hex, Slotted, Phillips, Pozidriv, Torx, Square |
| Thread Types | Fully Threaded, Partially Threaded, Fine Thread, Coarse Thread, Left Hand Thread |
| Thread Standards | Metric (Coarse / Fine), UNC, UNF, Whitworth |
| Size Range | M3 – M64 (Metric), 1/4" – 2" (Inch) |
| Length Range | 5mm – 500mm (Custom lengths available) |
| Surface Finish | Plain (Bright), Passivated, Polished, Ruspert, Dacromet, Procote, Zinc Plated, Hot Dip Galvanized |
| Customized Products | Lead Time: 30-50 days for busy season, 20-30 days for slack season (depending on complexity) |
| Standard Products | DIN/ISO norm products: 15-30 days |
| Packaging | Small box in carton, then Euro EPAL pallet / Color box / Bucket / DIY packaging upon customer demand |
Bolt Types Available
Hex Head Bolts
Description: The most common type of bolt, used for general purpose fastening
Standards: DIN 931 (partially threaded), DIN 933 (fully threaded), ISO 4014, ISO 4017
Applications: Construction, machinery assembly, structural connections
Socket Head Cap Screws
Description: Cylindrical head with internal hex drive for high-strength applications
Standards: DIN 912, ISO 4762
Applications: Machine parts, tooling, automotive components
Carriage Bolts
Description: Domed head with square neck to prevent rotation during tightening
Standards: DIN 603, ISO 8677
Applications: Wood connections, conveyor systems, construction
Eye Bolts
Description: Bolt with a circular ring head for lifting and rigging applications
Standards: DIN 580, DIN 444
Applications: Lifting equipment, rigging, marine hardware
Anchor Bolts
Description: Designed to fasten structures to concrete foundations
Standards: Custom specifications available
Applications: Construction foundations, column mounting, heavy equipment installation
U-Bolts
Description: Bent bolt in U-shape with threaded ends
Standards: DIN 3570, custom specifications
Applications: Pipe supports, leaf spring suspension, frame mounting
Why Choose Our Stainless Steel Bolts?
Certified Raw Materials: We source prime quality from major steel mills, ensuring material purity and traceability with mill test certificates
Full Traceability: Material grade markings on bolt heads for easy identification
100% Quality Inspection: Every batch undergoes dimensional inspection, hardness testing, and go/no-go gauge checks
Corrosion Resistance: Superior performance in harsh environments with salt spray testing available upon request
Global Standards Compliance: Manufactured to meet DIN, ISO, ANSI, and JIS specifications
Quality Assurance
ISO 9001:2015 certified quality management system
Strict raw material inspection with material certificates provided
100% dimensional and visual inspection before packaging
Third-party testing available upon request (SGS, BV, TUV)
Compliance with international standards: DIN, ISO, ANSI, JIS[Insert Product
RFQ
- How do you let me trust you.
More than 15 years experience in Stainless steel fastener industry, Not only Boltec know the products well, but professional for the package, label, etc. can provide high quality products with reasonable price.
- How do wecontrol ourquality.
We request QC inspect every productions links for each bacth goods. And we can provide you MTC and mill certificate when the goods is finished. One Lot No. , one 3.1 certificates, can track production once have claim.
- Could you provide free samples?
For new customer, We can provide free samples for standard fastener, But the clients will pay the express charges. For old customer, We will send you free samples and pay express charges by ourself.
- Do you accept small order?
We keep lots of stock for all stainless steel common products, but faced the shipment, sometims one small order 2-3 Tons is Extraordinary economy for the price.
- How about your delivery time
General speaking, if the goods is in stock, we can delivery them 10 days, If the quantity is 1-2container, we can give you with 35-40 days, if the quantity is more than 2 container and You are very urgent, we can let factory priority produce your goods.
Sometimes depends on the different products.
- What is your packing.
Our packing is 20-25kg for one carton, 36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers' requestment.
- What is your payment term
We can accept T/T, LC for general order, Paypal and Western union for small order or samples order.
