THE PREMIUM ROOF FIXING SCREWS

FASTER & STRONGER

ADVANCED PREMIUM PLATING TECHNOLOGY

LIFETIME DURABILITY

RoHS COMPLIANT GREEN PRODUCTS

PIONEERING ANTI-RUST TECHNOLOGY

Australian Standard AS 3566.2-2002

According to internal assessments by KOKEN, the NEXUS-X6 coating achieved a salt spray test duration of 2,544 hours under AS 3566.2-2002 / AS 2331.3.1-2001 standards — significantly outperforming other products on the market.

Optimal waterproofing

KOKEN self-drilling screws are equipped with a 3mm thick EPDM-Aluminum washer or an EPDM seal, offering optimal waterproofing, anti-aging properties, and superior wind resistance.

Characteristics

  • Extremely high rust resistance

    NEXUS-X is a surface treatment technology that significantly enhances rust resistance for metal screws, outperforming conventional plating methods through its unique multi-layer molecular bonding structure. NEXUS-X delivers 20% to 40% greater anti-rust performance compared to other products in the same category.

  • Environmental standard RoHS

    NEXUS – X is a technology that meets European green standards – RoHS, does not contain 10 substances that are carcinogenic and toxic to the environment and humans.

  • Optimize packaging

    Durable materials for superior product protection. KOKEN packaging is made from impact-resistant, waterproof, and dustproof materials, ensuring reliable protection against external factors.
    Smart design, easy to use KOKEN product packaging is often designed with smart details, making it easy for users to open, close and use the product.

  • EPDM Aluminum Washer

    3mm thick EPDM rubber layer: withstands high temperatures on the roof and has the best leak-proof ability.

Specifications

  • Head type

    Hexagon (soket 8mm).

  • Material

    Specific hardened steel

  • Thread type

    Double thread

  • Thread diameter

    #12 gauge (5.5mm).

  • Washer

    EPDM seal or Alu EPDM bonded washer.

  • Pitch

    14 thread/inch.

  • Drill capacity

    Max 6.0mm.

  • Coating

    KOKEN self-drilling screws apply Hi-tech coating technology, tested according to Australian standard AS3566.2 and DIN 50018 for corossion effectiveness more than 2 - 4 years compared to orther traditional Galvanized oating screws.

  • Application

    Used for corrugated steel roof at high waves.

  • Size

    #12-14×50 (5.5-14×50); #12-14×55 (5.5-14×55); #12-14×68 (5.5-14×68); #12-14×75 (5.5-14×75); #12-14×95 (5.5-14×95); #12-14×120 (5.5-14×120).

Community engagement

KOKEN

There are successes that come from the desire to make a difference. There are achievements that are the result of tireless work. There are marks created by outstanding qualities. And there are breakthroughs that inspire the dream of bringing happy homes to millions of Vietnamese families. The journey to build KOKEN's brilliant achievements. It is the superiority in quality, the priority in applying advanced science and technology, and the ability to understand market needs that helps us firmly affirm our position as a leading supplier of construction accessories.