Reliable Hexagonal Concrete Screws for Customizable Manufacturing Needs

• Customization: Available
• Material: Carbon Steel
• Type: Hexagon Head
• Model NO.: 1-1
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN
• Grade: 4.8
• Application: Machinery
• Finish: Color-Zinc Plated
• Thread Type: Full Thread
• Applicable Industries: Construction, Manufacturing, etc.
• Whether to Support Customization: Support
• Product Grade: Level a
• Transport Package: Container
• Specification: 1-30
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

The Concrete Self-Tapping Anchor Bolt represents a revolutionary post-anchoring technology fastener. This innovation carves a firm anchoring effect in concrete, thanks to its hard threads. The analysis below explores its multifaceted capabilities:

1. Core Features

1. Self-attacking Anchoring Mechanism

Utilizing high-hardness threads, typically crafted from grade 10.9 or higher carbon steel, these bolts effortlessly cut into the concrete wall. This establishes a robust threaded interlocking structure, eliminating the need for pre-drilling or chemical bonding agents. Its anchoring prowess is demonstrated through destructive tensile tests, often resulting in the failure of the concrete cone, rather than the bolt itself.

2. Reversible Installation Design

Designed for flexibility, these bolts support disassembly through rotational direction adjustments, making them ideal for temporary fixes like scaffolding or formwork support. This significantly minimizes engineering renovation expenses.

2. Technical Parameters and Adaptability

1. Principle of Specification Matching

The anchor bolt's diameter must precisely match the drilled hole (e.g., M8 bolt for an 8mm hole). Different length models (e.g., 6 × 35, 6 × 55) cater to various substrate thicknesses, ensuring the anchoring depth fulfills bearing standards.

2. Material Performance Grading

• Basic Version: Grade 8.8 or higher carbon steel, perfect for conventional environments.

Anti-Corrosion Enhanced Version: Constructed with 410 stainless steel and surface anti-corrosion treatment, these bolts withstand extreme conditions like marine climates and chemical corrosion.

High Strength Version: Tailored from grade 12.9 carbon steel, this variant is perfect for heavy equipment fixation and seismic fortification zones.

3. Application Scenarios

1. Building Structure Reinforcement

Implementing seismic supports and suspension systems in concrete beams, slabs, and columns becomes seamless. Quick anchoring is achieved without jeopardizing substrate integrity.

2. Equipment Installation

Ideal for fixing curtain wall keels and mechanical and electrical pipeline supports, these bolts adapt to intricate spatial layouts with their compact installation feature.

3. Temporary Works

In scenarios like event venues and exhibition construction, these bolts ensure swift detachable anchoring of scaffolding and stage frameworks.

4. Technical Advantages

1. Construction Efficiency

Compared to traditional expansion anchor bolts, installation time per piece is slashed by over 60%, with no adhesive curing wait time required.

2. Bearing Capacity

In C30 concrete, a single anchor bolt boasts a tensile bearing capacity of 8-15kN and a shear bearing capacity of 5-10kN, depending on specifications.

3. Environmental Adaptability

Material upgrades enable a temperature range coverage from -20 ºC to 80 ºC, along with IP68 dust and water resistance.

5. Selection and Construction Points

1. Substrate Evaluation

Concrete strength (C25 or above recommended), crack width (≤ 0.3mm), and steel density must be assessed to avert conflicts between anchor bolts and steel reinforcement.

2. Tool Matching

An electric wrench with torque control is advisable, ensuring installation torque is within ±15% of the nominal value.

3. Quality Control

Post-installation, a sampling pull-out test is mandatory, with a bearing capacity standard set at 1.5 times the design value for qualification.