Infasron Fastening System(Nantong)Co.,Ltd.

Self-drilling Screws

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Self-drilling screws, often referred to as Tek screws, are high-performance fasteners characterized by an integrated drill-shaped point. Manufactured from high-strength carbon steel or stainless steel, these screws are typically finished with premium zinc plating or organic coatings to ensure maximum durability. The unique drill point allows the screw to function as both a drill bit and a fastener, enabling it to pierce and thread into metal or wood in a single, seamless operation.

Compared to traditional screws, self-drilling versions significantly enhance installation efficiency by eliminating the need for pre-drilling pilot holes. This makes them highly cost-effective for large-scale assembly. They are predominantly utilized in metal-to-metal bonding, roofing systems, steel structure fabrication, and HVAC installations.

Key Features:

  • Integrated drill-shaped point for one-step installation
  • Eliminates the need for separate pre-drilling and pilot holes
  • High-strength carbon steel core with heat treatment for rapid penetration
  • Superior shear and tensile strength for heavy-duty metal bonding
  • Available with weather-resistant coatings (C3/C4) for outdoor durability

Carbon steel countersunk head structural nail 3# 12-14 x 32

Yingfeng Fasteners (Nantong) Co., Ltd., as an enterprise specialising in the manufacture of high-quality fasteners, has long supplied Butler Building Systems with bespoke screw products. Through its exceptional product quality and precise understanding of customer requirements, Yingfeng Fasteners has not only earned Butler's profound trust but has also been honoured with the distinction of ‘Zero Defect Scrap Rate Supplier’ for 20 consecutive years.

Carbon Steel Hex Flange Countersunk Screw 3# 14-14125 Coated Screw

  • Standard Number: GB/T 3098
  • Material: C1022/1022A
  • Suitable Sheet Material: Q355B grade and below
  • Maximum Sheet Thickness for Drilling: 5.8mm
  • Effective Fastening Thickness: 110mm
  • Drive Tool: M8 Hex Magnetic Socket

Carbon steel hexagonal small flange structural nails-11

  • Standard Number: GB/T 3098
  • Material: Carbon steel
  • Drive tool: Hexagonal

Carbon steel hexagonal small flange structural nails-10

  • Standard Number: GB/T 3098
  • Material: Carbon steel
  • Drive tool: Hexagonal

Carbon steel hexagonal small flange structural nails-9

  • Standard Number: GB/T 3098
  • Material: Carbon steel
  • Drive tool: Hexagonal

Carbon steel hexagonal small flange structural nails-8

  • Standard Number: GB/T 3098
  • Material: Carbon steel
  • Drive tool: Hexagonal

Carbon steel hexagonal small flange structural nails-7

  • Standard Number: GB/T 3098
  • Material: Carbon steel
  • Drive tool: Hexagonal

Carbon steel hexagonal small flange structural nails-6

  • Standard Number: GB/T 3098
  • Material: Carbon steel
  • Drive tool: Hexagonal

Carbon steel hexagonal small flange structural nails-5

  • Standard Number: GB/T 3098
  • Material: Carbon steel
  • Drive tool: Hexagonal

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