Reliable External Thread Anchor Bolts for Sturdy Curtain Wall Construction

• Customization: Available
• Application: Concrete Anchoring
• Finish: Zinc Plated
• Grade: 4.8
• Head Style: Flat Head
• Material: Steel
• Standard: ANSI
• Type: Bonded Anchor Bolt
• Applicable Industries: Construction Industry
• Strength Level: 4.8
• Use: Standard
• Whether to Support Customization: Support
• Transport Package: Container
• Specification: 1-100
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

The external thread anchor bolt is an indispensable fastening connector that performs superb mechanical fastening and anchoring functions. It works in harmony with nuts, connected parts, or substrates through meticulously processed threads on its outer surface. Delve into its comprehensive features from multiple perspectives:

• Structural Design

Screw Body: The outer surface is adorned with threads, typically circular in cross-section. These threads can be categorized into coarse and fine variants. Coarse threads boast a larger profile with a wider pitch, facilitating swift installation and offering substantial strength. Conversely, fine threads exhibit a smaller tooth profile paired with a narrow pitch, delivering excellent self-locking performance and remarkable anti-loosening capability, ideal for conditions enduring impact, vibration, or necessitating delicate adjustments.

Head Type: Tailored to diverse usage scenarios and installation imperatives, various head forms are available. The hexagonal head lends itself to easy tightening with a wrench and ensures even force distribution, while the sinking head allows for a seamless and aesthetically pleasing surface post-installation. Moreover, the hexagonal head demands minimal operating space, rendering it suitable for constricted areas.

Length Specifications: Spanning from a few millimeters to multiple meters, shorter lengths cater to thin plate connections, whereas longer ones excel in deep hole anchoring. This range adeptly accommodates the connection requisites of materials or structures with varying thicknesses.

• Materials and Properties

Material Selection: Typical materials encompass carbon steel, stainless steel, and alloy steel. Carbon steel is cost-effective and robust, making it ideal for standard environments. Stainless steel, famed for its exceptional corrosion resistance, thrives in corrosive settings like humidity, acidity, and alkalinity. Alloy steel, enhanced with specific alloying elements, remarkably boosts strength, toughness, and high-temperature resistance, meeting special working conditions' demands with aplomb.

Mechanical Properties: Exhibiting high tensile and shear strength, these bolts endure significant axial tensile and transverse shear forces, guaranteeing the connection or anchoring parts' stability. Additionally, some external thread anchor bolts possess commendable toughness and ductility, adeptly absorbing external impacts and averting brittle fractures.

• Working Principle

Conventional Connection: In tandem with a nut, the nut's rotation induces axial movement along the bolt's external threads, generating a tightening force that clamps and fixes multiple components together. This is achieved by leveraging friction and self-locking characteristics between the threads, ensuring the connection's unwavering reliability.

Anchor Connection: In concrete or similar substrates, the process begins with drilling a hole, inserting the anchor bolt, and applying torque to expand the bolt. This action squeezes the substrate or utilizes chemical agents for a robust bond. The anchoring force is derived from mechanical bite or chemical bonding, effectively securing the connected part to the substrate.

• Application Areas

Construction: Predominantly utilized in connecting concrete structures, installing steel frameworks, and fixing curtain walls within construction projects. Tasks like joining steel beams to concrete columns or affixing decorative panels on building exteriors ensure the building structure's integrity and safety.

Mechanical Manufacturing: Essential in assembling components of mechanical equipment like machine tools and automotive engines. These bolts facilitate precise positioning and ensure reliable connections, vital for the equipment's smooth operation.

Bridge Engineering: Integral in bridge construction, they connect bridge piers with the main structure and secure bridge deck expansion joint devices. Their role is critical in bearing vehicle loads and withstanding environmental effects, ultimately maintaining the bridge's structural stability.