Rust-Resistant Hexagon Screws for Outdoor and Indoor Use

• Customization: Available
• Material: Carbon Steel
• Type: Hexagon Head
• Model NO.: 1-1
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN
• Grade: 4.8
• Surface Treatment: Galvanizing
• Thread Type: Full Thread
• Applicable Industries: Construction, Manufacturing
• After-Sales: Three Months
• Transport Package: Container Loading
• Specification: 1-30
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

External hexagonal wood screws are meticulously engineered fasteners, merging the robustness of hexagonal heads with versatile self-tapping or machine tooth threads. Tailored for wood and wood composite materials, these screws excel in delivering seamless connections through tool-driven precision, offering superior torque transmission and exceptional wood compatibility. In the following discussion, we will delve into the intricate details from four key dimensions: structural characteristics, technical parameters, application scenarios, and selection criteria:

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1, Structure and Function Analysis

1. Head design

Hexagonal Drive: Adhering to ISO 4032/GB 5648 standards, this design integrates seamlessly with standard sockets and wrenches, tailored for edge dimensions like M6 (10mm). It significantly boosts torque transmission efficiency, surpassing cross grooves, with a remarkable 30% enhancement in anti-slip force.

• Transition fillet: The thoughtfully crafted R0.5-R1.0 fillet design at the junction of the head and rod adeptly disperses stress, preventing splitting and ensuring durability.
2. Thread system

Self-tapping thread:

• Sharp tip design: Featuring an 82° cone angle with 3-5 tooth high pitch, such as M6 × 1.0, this design excels by extruding wood fibers to form threads without necessitating pre-drilling, making it ideal for softer woods like pine with hardness ≤ HB60.

• Chip removal groove: The innovative double spiral groove design amplifies chip removal efficiency by an impressive 40%, significantly mitigating the risk of wood burning.

• Machine thread:

Conforming to ISO metric standards, like M8 × 1.25, this thread type requires a 7.0mm pre-drilled hole, expertly suited for high-density hardwoods, including oak and walnut.

Thread depth: Occupying 70%-80% of the total length, this ensures that engagement length is a minimum of twice the diameter, maximizing holding power.

3. Rod structure

• Smooth rod section: Featuring a 3-5mm non-threaded area beneath the head, this design avoids local compression and potential cracking of wood during installation.

• Cone control: The strategic tapering of the rod diameter by 0.1-0.2mm from the head to the bottom creates a self-locking effect, boosting pull-out resistance by an impressive 25%.

Anti-rust coating:
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summarize

The external hexagonal wood screw stands as a paragon of engineering, harmonizing efficient torque transmission via its hexagonal head with adaptable self-tapping or machine tooth threads designed for various woods. Coupled with an anti-rust coating, it offers unparalleled environmental resilience. Selection should astutely consider wood hardness, load demands, and environmental corrosiveness. Preference should be given to products complying with GB/T 15234 standards, with installation quality being assured through pre-drilling and precise torque control.