OEM Stainless Steel Triangle Head Screws Anti Theft Triangle Security Screws

Description

What Are Triangle Head Screws?

Triangle head screws, also known as tri-wing screws or triangular drive screws, are fasteners with a unique three-pointed recess in their head. This design provides enhanced tamper resistance compared to standard Phillips or slotted screws, making them ideal for applications where security is a priority. The triangular drive system requires a specialized screwdriver bit, reducing the risk of unauthorized removal.

Materials of Triangle Head Screws

Triangle head screws are manufactured from various materials to suit different environmental and mechanical requirements:

• Stainless Steel (A2/A4): Offers excellent corrosion resistance, making it suitable for outdoor or marine applications.

• Carbon Steel: Provides high strength and durability, often coated for additional protection.

• Brass: Used in electrical and decorative applications due to its conductivity and aesthetic appeal.

• Titanium: Lightweight yet extremely strong, ideal for aerospace and high-performance industries.

• Alloy Steel: Heat-treated for enhanced hardness and wear resistance in heavy-duty applications.

Surface Treatments

To improve performance and longevity, triangle head screws undergo various surface treatments:

• Zinc Plating: Provides basic corrosion resistance and a shiny finish.

• Black Oxide: Enhances wear resistance and reduces light reflection.

• Nickel Plating: Improves corrosion resistance while offering a polished appearance.

• Phosphate Coating: Increases lubricity and corrosion protection, often used in automotive applications.

• Dacromet Coating: A high-performance anti-corrosion treatment for harsh environments.

Specifications

Triangle head screws come in a range of specifications, including:

• Drive Types: Tri-wing (triangle recess) in various sizes (e.g., #4, #8, #10).

• Head Styles: Pan head, flat head, button head, and socket head.

• Thread Types: Machine threads (UNC, UNF) or self-tapping threads.

• Sizes: Diameters from M2 to M12, lengths from 5mm to 50mm (or custom sizes).

Applications

Due to their tamper-resistant nature, triangle head screws are widely used in:

• Electronics: Securing sensitive components in smartphones, laptops, and gaming consoles.

• Automotive: Fastening interior panels, dashboards, and license plates.

• Aerospace: Assembling critical components where vibration resistance is crucial.

• Public Infrastructure: Installing fixtures in restrooms, transportation systems, and street furniture.

• Medical Devices: Ensuring sterile equipment remains securely fastened.

Excellent Case: Securing Public Transportation Seating

In a major metropolitan subway system, traditional screws used to fasten seating units were frequently vandalized or loosened due to constant vibrations. The transit authority switched to stainless steel triangle head screws with a Dacromet coating to combat these issues.

Why It Worked:

• Tamper Resistance: The unique tri-wing drive prevented unauthorized removal, reducing vandalism.

• Corrosion Protection: The Dacromet coating protected against moisture and chemicals in the subway environment.

• Vibration Resistance: The screws remained securely fastened despite daily train movements.

Result:

Maintenance costs dropped by 40%, and seat durability improved significantly, enhancing passenger safety and comfort.