Countersunk Phillips Self-Tapping Screw
The ALSA0600101 self-tapping screw features a countersunk head, Phillips drive, and thread-cutting notch for fastening applications that require a neat, low-profile finish. Made from 1018 steel with an eco-friendly antique bronze finish, this screw is specified for electronics applications where compact dimensions and surface appearance are important.
With a specification of 2.3 × 5 KT, this small self-tapping screw is designed for applications that require a suitable combination of screw dimensions, head style, and fastening performance. The countersunk design allows the head to sit flush with a properly prepared mating surface when the hole and head geometry are compatible.
Product Specifications
Product Code | ALSA0600101 |
Description | Countersunk Phillips-head self-tapping screw with thread-cutting notch |
Specifications | 2.3x5 KT |
Material | 1018 (Steel) |
Surface Treatment | Eco-friendly antique bronze finish |
Application Industries | Electronics application |

Product Features
Countersunk Head for a Flush Finish
The countersunk head is suitable for assemblies where a protruding screw head needs to be minimized. Correct seating depends on the mating hole, countersink angle, and screw dimensions.
Phillips Drive for Convenient Installation
The Phillips drive is compatible with a matching screwdriver or driver bit. Using the correct tool helps improve installation control and reduce the risk of damaging the screw head.
Thread-Cutting Notch
The thread-cutting notch helps form mating threads in compatible materials. Whether a pilot hole is required depends on the material, hole dimensions, and assembly design.
1018 Steel Construction
This self-tapping screw is made from 1018 steel. The material and any additional mechanical requirements should be evaluated according to the intended application and relevant product specifications.
Antique Bronze Surface Finish
The eco-friendly antique bronze finish provides a distinctive bronze-colored appearance for components where surface aesthetics matter. Actual corrosion resistance and coating performance should be confirmed against the applicable finish specification.
Applications
The ALSA0600101 is specified for electronics applications. Its compact dimensions and countersunk head make it a candidate for compatible assemblies where a neat finished surface is required.
Small self-tapping screws are also used in various hardware and component assemblies, but suitability for any additional application depends on the screw dimensions, mating material, and engineering requirements.
When selecting small Phillips screws for an electronic product, check the available installation space, material thickness, hole size, required thread engagement, and head clearance before ordering.

Frequently Asked Questions
What is a countersunk self-tapping screw?
A countersunk self-tapping screw combines a tapered head with a thread-forming or thread-cutting design. It is used where a flush or low-profile screw head is required and the mating material is suitable for the screw.
What size is the ALSA0600101 screw?
The listed specification is 2.3 × 5 KT. Please refer to the approved product drawing to confirm the dimensional definitions, head dimensions, and the meaning of KT.
What material is this self-tapping screw made from?
The ALSA0600101 is specified as 1018 steel with an eco-friendly antique bronze surface finish.
Can self-tapping screws be used in electronics?
Yes, self-tapping screws are used in compatible electronic product assemblies. The appropriate screw depends on the housing material, hole design, available space, and required fastening performance.
How do I choose the right small self-tapping screw?
Check the screw diameter, length, head type, drive style, base material, and required thread engagement. For compact electronic assemblies, the screw must also fit the available installation space and avoid interference with internal components.
Custom Self-Tapping Screws from AOYI
AOYI provides fastening products for customers with standard and customized screw requirements. If you need small self-tapping screws with specific dimensions, head styles, materials, or surface finishes, share your technical drawing or sample for evaluation.
Contact AOYI to discuss product specifications, customization feasibility, minimum order quantity, lead time, and pricing.
Looking for a countersunk Phillips self-tapping screw for your next project? Send AOYI your requirements to request a quotation.