Dynabolts Construction Structural Screws High Strength Molybdenum Bolt
Size：M6-M20
Manufacturing standard：ISO, GB, JIS, DIN, BS and ANSI standards, or drawings provided by customers.
Materials： iron, carbon steel, alloy steel, copper, stainless steel, plastics, high-temperature alloy, copper alloy, nickel-base alloy, high-strength alloy, corrosion-resistant alloy, etc.
Process： cold heading, punching, turning, milling, wire cutting, etc.
Treatment/Finishing: Brushing、Anodizing、Zinc Plated、Nickel Plated、Sn Plated.
Requirements： No Burrs、Scratches、Dents、Pits
Application： Structural Steel; Metal Building; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating
Packing：bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
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Product Name
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Dynabolts
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Size
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M8-M20 or Customized Size
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Material
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Steel,Stainless Steel,Alloy steel,Carbon Steel,Brass,Aluminum and So on
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Thread Type
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Fine Thread Or Coarse Thread or Hi-Lo Thread
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Grade
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4.8,8.8,10.9,12.9.etc
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Standard
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GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS etc
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Non-standards
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OEM is available, according to drawing or samples
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Finish
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Plain, black, zinc plated/according to your requirement
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Certification
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ISO9001,IATF16949,ISO14001
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Package
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according to customers requirement
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USE
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Automobile, aviation, new energy, high-speed rail
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Dynabolts, also referred to as sleeve anchor bolts, are a critical component in the construction and heavy-duty fastening industry. Manufactured predominantly from high-grade carbon steel or 304/316 stainless steel, Dynabolts provide excellent corrosion resistance and long-term mechanical stability, especially in concrete and masonry applications. The standard metric sizes (e.g., M6, M8, M10, M12) allow compatibility with a wide range of anchoring conditions.
A key feature of Dynabolts lies in their expansion mechanism. Once inserted into a pre-drilled hole, the sleeve expands against the wall as the bolt is tightened, delivering a secure and vibration-resistant hold. This makes them ideal for medium to heavy-duty anchoring of structural steel, brackets, base plates, or handrails. They conform to international standards such as DIN 529 and AS 5216:2018, ensuring reliable performance under dynamic loads.
From an engineering standpoint, the selection of Dynabolts depends on substrate material, embedment depth, load rating, and environmental exposure. For instance, 316 stainless steel Dynabolts are preferred in coastal or chemical plant environments due to their enhanced pitting resistance. Some designs include hex head, flat head, or countersunk head options to meet architectural or load distribution requirements.
In modern infrastructure projects, precision-manufactured Dynabolts play a vital role in safety-critical applications. Their design versatility and tested reliability have made them a staple in global construction practices. As manufacturers and suppliers, delivering consistent quality, tight tolerance control, and traceable material certification is essential for market competitiveness and compliance with construction codes.
