Screws
Countersunk Self-Drilling Screws
Phillips Flat Head Self-Drilling Tek Screws
Our countersunk self-drilling screws feature an integrated drill point that eliminates the need for pre-drilling, significantly reducing installation time. The flat Phillips countersunk head sits flush with the workpiece surface, providing a clean, smooth finish. Manufactured through precision cold heading and thread rolling, these screws deliver consistent performance for metal-to-metal fastening applications.
Key Features
Integrated drill point - no pre-drilling required
Flat countersunk head for flush surface finish
Phillips drive for easy installation with power tools
Case-hardened for superior drilling performance
Sharp, consistent threading for strong pull-out resistance
Available with various point types for different steel thicknesses
Technical Specifications
| Product Name | Countersunk Self-Drilling Screws |
| Chinese Name | 沉头钻尾螺丝 |
| Brand | ZCM / Zhongchun |
| Head Type | Phillips Countersunk (Flat Head) |
| Drive | Phillips (#2) |
| Point Type | Self-Drilling / Tek Point (#2, #3, #5) |
| Material | Carbon Steel (1022A), Stainless Steel (410, 304) |
| Size Range | #6 x 3/4" to #14 x 3" |
| Surface Treatment | Zinc Plated (White/Yellow/Blue), Dacromet, Ruspert, Plain |
| Standards | DIN 7504P, GB/T 15856.2, Custom |
| Hardness | Surface HV 560-700, Core HRC 28-38 |
| Drilling Capacity | Up to 5mm steel plate (depending on point type) |
| Packaging | Box / Carton + Pallet, or per customer request |
| MOQ | Contact us for details |
| Lead Time | 15 days for standard orders |
Applications
Countersunk self-drilling screws are widely used wherever a flush finish is needed in metal-to-metal fastening.
Steel framing and light-gauge metal stud construction
Sheet metal ductwork and HVAC installations
Roofing and wall cladding inner fastening
Prefabricated building panel assembly
Electrical enclosure and cabinet assembly
Automotive body panel and trim attachment
Drywall to steel stud applications
General thin-to-thick metal connections
Interested in Countersunk Self-Drilling Screws?
Send us your specifications for a competitive quote. Standard orders delivered in 15 days.