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| Customization: | Available |
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| Material: | Carbon Steel |
| Type: | Hexagon Head |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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In the world of structural engineering, a bolt is not just a fastener; it is a critical safety element. SB (Structural Bolting) assemblies are the specialized choice for non-preloaded metal structures where structural integrity and public safety are paramount. Unlike standard hardware, SB bolts are designed to handle the dynamic stresses of modern infrastructure, from industrial warehouses to complex steel frameworks.
At Sinofastener (FAST®), we treat every SB assembly as a high-precision engine component. Our professional focus ensures:
Structural Reliability: Every SB marked set is verified for consistent tensile and yield strength to prevent catastrophic failure.
Safety Compliance: We bridge the gap between complex engineering requirements and on-site execution, providing fasteners that meet stringent global building codes.
Expert Supply: With 35 years of manufacturing legacy, we don't just sell bolts; we provide the "certified peace of mind" required by EPC contractors and structural engineers worldwide.
| Item | Specification Details |
| Standard | EN 15048 ASTM A193,A307,A325,A490 |
| Product Type | Structural Bolting Assemblies (SB) |
| Brand | FAST® |
| Property Class | Grade 8.8 / Grade 10.9 (High Tensile) |
| Size Range | M12 to M36 (Standard Lengths: 30mm - 300mm) |
| Thread Type | Metric Coarse Thread (6g / 6H fit) |
| Assembly | Consists of 1 Hex Bolt + 1 Hex Nut (Washers optional) |
| Safety Factor | High Ductility & Specified Tensile Strength for structural safety |
| Surface Finish | Hot-Dip Galvanized / Zinc Plated |
| Certification | ISO 9001:2015 |
| web | sinofastener.en.made-in-china.com |
Q1. What are your main products?
China fastener manufacturer, bolts, screws, threaded rods, nuts, washers, anchors, rivets, stamping parts, machined parts, sinofastener, zlfastener, hardware, bolt and nut, carbon steel, stainless steel.
Q2. How do you ensure quality in every process?
QC inspection every production step, strict quality control, MTC, mill certificate, ISO idea, sinofastener factory inspection, China fastener manufacturer quality assurance.
Q3. What is your delivery time for fasteners?
30-45 days delivery time, flexible according to order quantity, China bolts nuts screws lead time, OEM/ODM fastener delivery, Ningbo port shipment.
Q4. What are your payment terms?
30% T/T in advance, 70% balance against B/L copy, small order under 1000 USD 100% in advance, reduce bank charges, safe payment, trade assurance, fastener order payment.
Q5. Can you provide samples of bolts and nuts?
Free samples for standard fasteners, new customer pay express cost, China bolt nut sample, sinofastener sample policy.
Q6. Are you a manufacturer or trading company?
Sinofastener is a fastener manufacturer in Ningbo China, many years experience in bolts, nuts, threaded rods, washers, OEM/ODM factory, china supplies, zlfastener, hardware producer.
Q7. Do you provide OEM/ODM service for fasteners?
Yes, OEM/ODM accepted, custom screws, custom bolts, special nuts, carbon steel and stainless steel fasteners, drawing and sample production, China OEM fastener supplier.
Q8. How is your price for screws, bolts and nuts?
High quality fasteners with reasonable price, factory direct price, competitive China supplier, quick quotation after inquiry, sinofastener best cost performance.
Q9. How do you control your fastener quality?
QC inspect every production link for each batch, full process control from raw material to packing, provide MTC and mill certificate, stable quality, reliable China fastener manufacturer.
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