Timco 3.9x13mm Countersunk Self-Tapping Screws, Yellow Zinc (1000pc)
1000 Timco 3.9x13mm yellow zinc self-tapping screws with countersunk ribbed heads for window fabrication.
The Timco 3.9x13mm Countersunk Self-Tapping Screws are versatile fasteners designed for multiple applications in window fabrication and metalwork. These high-quality screws feature a countersunk head with ribs underneath for improved countersinking action, ensuring a flush and secure fit when installed.
These screws are self-tapping with a self-drilling point, allowing you to work efficiently with steel or aluminium reinforcements without needing to pre-drill holes. Made from durable carbon steel with a yellow zinc finish, they offer excellent corrosion resistance for long-lasting performance in demanding environments.
The Phillips drive (PH) recess provides good torque transmission and helps prevent cam-out during installation. Each pack contains 1000 screws, making this an economical choice for professionals who need bulk fasteners for fabrication projects.
Ideal for:
- Installing window hardware to reinforced frames
- Joining metal components where drill bits aren't practical
- Applications requiring flush-mounted fasteners
- Projects needing reliable, vibration-resistant connections
- Shipped within 0-2 business days
- Shipping to United States: 3-5 business days*
- Free Shipping Included
- Window frame fabrication
- Aluminium reinforcement work
- Steel frame construction
- Hardware installation
- Thread Diameter: 3.9mm
- Length: 13mm
- Head Type: Countersunk with Ribs
- Recess Type: Phillips (PH)
- Thread Type: Self-Tapping
- Point Type: Self-Drilling
- Finish: Zinc & Yellow
- Material: Carbon Steel
- Weight: 960g
- Quantity: 1000 pieces
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Free standard delivery on US mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For defective items, contact us within 14 days for a replacement or refund.
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