Security Countersunk AB Self Tapping Screws

Countersunk Security Self Tapping Screws are designed for flush fitting, leaving a smooth surface once installed. The countersunk head sits level with the material, making them ideal for applications where appearance and snag-free finishes are important, such as signage, access panels, and public fixtures.

Available drive types include:

• Pin Torx
• 5-Lobe
• Pin Hex
• 2-Hole (Snake Eye)
• Clutch

These screws are produced in A2 (304) stainless steel and A4 (316) stainless steel, providing excellent durability and corrosion resistance for both indoor and outdoor use—including marine and other harsh environments.

What is an AB Self Tapping Screw?

AB Self Tapping Screws feature a sharp point and spaced, coarse threads, designed to cut into softer materials like sheet metal, plastic, and wood. They create their own thread in a pre-drilled pilot hole, eliminating the need for tapping tools. This makes installation quicker, more efficient, and highly reliable across a wide range of applications.

Why Choose a Security Screw Over a Regular Drive?

Security screws are specifically developed to prevent unauthorised removal and tampering. Unlike standard Phillips or Pozi drives that can be undone with everyday tools, security drives such as Pin Torx or 2-Hole require specialised bits or drivers. This makes them a superior choice for protecting installations in areas at risk of theft, vandalism, or misuse, including:

• Public access areas
• Safety and security equipment
• External fixings
• Restricted-access panels

For quick quotes, same day dispatch or bulk discounts on countersunk self tapping screws, call our sales line on 01233 713 581. Businesses can register for a Vital Parts Business Account for priority shipping, trade pricing, free product samples, credit accounts and a dedicated account manager.