Hex Head Self Drilling Screws

Hex Head Self Drilling Screws

Our Yellow Zinc Plated Hex Head Self-Drilling Screws are the ultimate solution for high-speed, heavy-duty fastening into metal. Engineered to drill, tap, and fasten all in one motion, these screws eliminate the need for pre-drilling, saving significant time and labor costs on the job site. Featuring a robust external hex head for high-torque driving and a durable yellow zinc coating for enhanced corrosion resistance, they are the go-to fastener for construction, metal fabrication, roofing, and HVAC applications.

Product Details

This screw’s innovative design combines three tools in one. The tip of the screw is a precision-formed drill point, capable of drilling through light to medium gauge steel without a pilot hole. Immediately following the drill point are the self-tapping threads, which cut their own mating threads into the metal as the screw is driven.

The external hex head is designed to be driven with standard nut drivers or socket wrenches, allowing for high torque application and providing a secure, slip-free installation. The entire screw is made from hardened carbon steel to withstand the stress of drilling and tapping into metal. The yellow zinc chromate plating provides a good level of corrosion resistance, making these screws suitable for various indoor and outdoor applications where moderate moisture may be present.

Product Parameters

The following table outlines the technical and commercial specifications for our Hex Head Self-Drilling Screws. As a large-scale manufacturer, we can accommodate bulk orders and offer flexible shipping options.

General Specifications:

ParameterDescription
Product NameYellow Zinc Plated Hex Head Self-Drilling Screw
Head StyleExternal Hex Head
Drive TypeExternal Hex
Point TypeSelf-Drilling (Drill Point Tip)
MaterialHardened Carbon Steel (typically)
Finish / Surface TreatmentYellow Zinc Plated
Supply Ability500 Tons per Month
Minimum Order Quantity2 Tons (for bulk production; smaller inquiries may be considered)
PackagingBag/Box with Pallet, customizable
Shipping PortsTianjin, Qingdao, Shanghai, Ningbo
Delivery Time5 – 30 days, depending on quantity
Payment TermsT/T (Telegraphic Transfer), L/C (Letter of Credit)

Product Features

Our screws are manufactured for maximum efficiency and reliability, offering several key advantages:

  • Drill, Tap, and Fasten in One Step: The self-drilling point eliminates the need for separate drilling and tapping operations, dramatically increasing productivity.
  • High-Torque Hex Head: Allows for fast and secure installation with standard power tools, reducing driver slippage and ensuring a tight fit.
  • Enhanced Corrosion Resistance: The yellow zinc plating provides a durable protective layer against rust and corrosion, extending the life of the connection.
  • Strong and Reliable: Made from hardened steel to ensure the drill point and threads can effectively penetrate and secure metal components.
  • Large-Scale Production: With a supply ability of 500 tons per month, we can reliably fulfill large-volume orders for major projects.

Product Applications

The speed and strength of these screws make them indispensable in a variety of metal-to-metal fastening applications:

  • Metal Roofing and Siding: Securely attaching metal panels to steel purlins or framing.
  • Steel Frame Construction: Assembling light-gauge steel studs, tracks, and other structural components.
  • HVAC Installation: Fastening ductwork, brackets, and equipment supports.
  • General Metal Fabrication: Quickly joining sheet metal, steel plates, and profiles in a workshop or on-site.
  • Electrical and Conduit Work: Attaching clips, brackets, and junction boxes to steel structures.
  • Automotive and Trailer Assembly: Used for fastening components to metal frames.