Heavy-Duty Hexagon Screws for Tough Construction and 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
• 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

Discover the engineering marvel of external hexagonal wood screws, expertly crafted to marry hexagonal heads with self-tapping or machine tooth threads, tailored specifically for wood and composite wood materials. These fasteners are the epitome of efficiency, achieving robust connections through tool drive with superior torque transmission and perfect harmony with wooden substrates. Let's delve deeper into their wonders across four pivotal dimensions: structural characteristics, technical parameters, application scenarios, and selection criteria:

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1, Structure and Function Analysis

1. Head design

Hexagonal Drive: Engineered to comply with ISO 4032/GB 5648 standards, these screws are compatible with standard socket wrenches, matching edge dimensions (like M6 with a 10mm fit), and deliver a remarkable increase in torque transmission efficiency—30% more anti-slip force than traditional cross grooves.

• Transition fillet: With an R0.5-R1.0 fillet design at the junction of the head and rod, stress is effectively distributed to prevent splitting, enhancing durability.
2. Thread system

Self-tapping thread:

• Sharp tip design: Featuring an 82° cone angle paired with a 3-5 tooth high pitch (such as M6 × 1.0), these screws extrude wood fibers into seamless threads, eliminating the need for pre-drilling—a perfect match for woods like pine with a hardness ≤ HB60.

• Chip removal groove: The innovative double spiral groove design boosts chip removal efficiency by 40%, minimizing the risk of wood burning and ensuring a smooth job.

• Machine thread:

Adhering to ISO metric standards (e.g., M8 × 1.25), these require a pre-drilled hole of 7.0mm diameter, ideal for dense hardwoods like oak and walnut.

Thread depth: Commanding a presence with 70%-80% of total length, the engagement is secured at a length of at least twice the diameter, ensuring steadfastness.

3. Rod structure

• Smooth rod section: A strategically non-threaded area of 3-5mm below the head to prevent local wood compression and cracking, preserving the integrity of the wood.

• Cone control: Ingeniously, the rod tapers by 0.1-0.2mm from head to base, creating a self-locking effect that boosts pull-out resistance by 25%, adding a layer of security.

Anti-rust coating:
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summarize

The external hexagonal wood screw, a paragon of design, champions efficient torque transmission with its hexagonal head, while its self-tapping and machine tooth threads cater to varying wood types. Enhanced with an anti-rust coating, these screws boast impressive environmental adaptability. When selecting such screws, consider wood hardness, load requirements, and environmental corrosiveness thoroughly. Opt for products aligning with the GB/T 15234 standard, and ensure top-notch installation quality through pre-drilling and precise torque control.