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.
Frequently Asked Questions
Need your parts tomorrow? Our rapid same day dispatch has got you covered! Simply place your order before 4pm Mon-Thurs or 2pm Friday and select our Next Day Delivery service in the shopping cart. We also offer Guaranteed AM delivery when required, in addition to a Saturday delivery option.
If you don't mind waiting, we have a Free delivery method for orders over £30, and an economic £4.85 2nd Class delivery for orders between £20-£30.
Free Samples can be requested through our product pages, displayed in the sizing table beside the product you require. Please note you can always give us a call on 01233 713 581 or contact us on Live Chat to discuss samples.
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If you're unsure which part you need then please do not hesitate to give one of our friendly Sales Team a call on 01233 713 581 and they can assist you. Alternatively, we're active on Live Chat during office hours. You can open this using the button in the bottom right corner of the website. Alternatively, you can write to us using our contact form.
We offer a return period on all of our products to give you peace of mind, to view our policies and learn more about this process should it be required, please see our returns policy page.
In most cases we have the facilities to offer you different colours of a product, specific to your requirements. Minimum order quantities may apply depending on the manufacturing technique in question, but please get in touch with any queries you may have.
Please note that there is a minimum order value of £10 through our website (inclusive of VAT).
If you're new to our website you may want to check out our frequently asked questions section for answers to common customer queries.
While browsing the website you may come across abbreviations used for material names that you are unfamiliar with. You can find an explanation for these in our material abbreviations guide.