Self-Drilling Screws
The tail of the self-drilling screw is in the shape of a drill tail or a pointed tail. No auxiliary processing is required. It can be directly drilled, tapped, and tightened on the setting material or foundation material, greatly saving construction time. They are commonly used in construction, manufacturing, and various DIY projects.
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Stainless Steel Self Drilling Metal ScrewsDetailDimension Table
Stainless steel self-drilling metal screws are specially designed screws that can drill holes in metal materials for installation without pre-drilling steps, thereby improving work efficiency. These screws are usually made of stainless steel, have high strength and corrosion resistance, and are suitable for quick installation on stainless steel plates. Stainless steel self drilling screws are widely used in the need for rapid installation and high connection strength requirements, such as steel plate fixation in the construction industry, and parts assembly in machinery manufacturing.
Thread Size ST2.9 ST3.5 (ST3.9) ST4.2 ST4.8 ST5.5 ST6.3 P Pitch 1.1 1.3 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.3 1.4 1.6 1.8 1.8 dk max=nominal size 5.5 6.8 7.5 8.1 9.5 10.8 12.4 min 5.2 6.44 7.14 7.74 9.14 10.37 11.97 k ≈ 1.7 2.1 2.3 2.5 3 3.4 3.8 r max 1.1 1.4 1.5 1.6 1.9 2.1 2.4 Socket No. 1 2 2 2 2 3 3 M1 3 4.2 4.6 4.7 5.1 6.8 7.1 M2 2.8 4 4.2 4.4 5 6.3 7 dp max 2.3 2.8 3.1 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 0.7~2.4 1.75~3 1.75~4.4 1.75~5.25 2~6 -
Stainless Steel Round Head Self Drilling ScrewsDetailDimension Table
Stainless steel round head self-drilling screw is a kind of screw with high strength, corrosion resistance. It adopts self-drilling design, which can directly drill into wood and metal without pre-drilling, and has the advantages of simple installation and fast speed. At the same time, stainless steel self-drilling screw is not easy to rust, have good corrosion resistance, and long service life. In addition, the round head design improves the efficiency of tightening, reduces the chance of surface pressure, and can better protect the surface of the item. Therefore, stainless steel round head self-drilling screws are widely used in construction, furniture manufacturing, and other fields.
Thread Size ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3 P Pitch 1.1 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.4 1.6 1.8 1.8 dk max 5.6 7 8 9.5 11 12 min 5.3 6.64 7.64 9.14 10.57 11.57 k max 2.4 2.6 3.1 3.7 4 4.6 min 2.15 2.35 2.8 3.4 3.7 4.3 r min 0.1 0.1 0.2 0.2 0.25 0.25 R ≈ 5 6 6.5 8 9 10 dp 2.3 2.8 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 1.75~3 1.75~4.4 1.75~5.25 2~6 Socket No. 1 2 2 2 3 3 M1 3 3.9 4.4 4.9 6.4 6.9 M2 3 4 4.4 4.8 6.2 6.8 -
Stainless Steel Truss Head Self Drilling ScrewsDetailDimension Table
The stainless steel truss head self-drilling screws are a type of fastener designed for use in metal-to-metal or metal-to-wood applications, providing both the drilling and fastening functions in a single component.These screws are ideal for outdoor projects and applications where corrosion resistance is required, as they are made from high-quality stainless steel that is able to withstand harsh weather conditions. The truss head design offers a larger surface area for improved grip and increased strength, making it an excellent choice for heavy-duty projects.
Thread Size ST3.5 (ST3.9) ST4.2 ST4.8 ST5.5 ST6.3 P Pitch 1.3 1.3 1.4 1.6 1.8 1.8 a max 1.3 1.3 1.4 1.6 1.8 1.8 dk max 6.9 7.5 8.2 9.5 10.8 12.5 min 6.54 7.14 7.84 9.14 10.37 12.07 k max 2.6 2.8 3.05 3.55 3.95 4.55 min 2.35 2.55 2.75 3.25 3.65 4.25 r max 0.5 0.5 0.6 0.7 0.8 0.9 R ≈ 5.4 5.8 6.2 7.2 8.2 9.5 Socket No. 2 2 2 2 3 3 M1 ≈ 4.2 4.4 4.6 5 6.5 7.1 M2 ≈ 3.9 4.1 4.3 4.7 6.2 6.7 dp max 2.8 3.1 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~2.25 0.7~2.4 1.75~3 1.75~4.4 1.75~5.25 2~6 -
Stainless Steel Phillips Flat Head Self Drilling ScrewsDetailDimension Table
Made from high-quality stainless steel, these screws offer exceptional corrosion resistance, making them ideal for use in demanding environments such as outdoor, marine, and industrial applications. And the countersunk head design allows for a flush surface upon installation, enhancing aesthetics and minimizing the risk of snagging or obstruction. This feature makes them an excellent choice for projects where appearance and functionality are equally important.
AYA Fasteners is committed to providing high-performance fastening solutions that meet strict quality standards. Whether for construction, woodworking, or industrial applications, these countersunk self-drilling screws offer a perfect balance of strength, efficiency, and professional-grade results.
Thread Size ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3 P Pitch 1.1 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.4 1.6 1.8 1.8 dk max 5.5 7.3 8.4 9.3 10.3 11.3 min 5.2 6.9 8 8.9 9.9 10.9 k max 1.7 2.35 2.6 2.8 3 3.15 r max 1.2 1.4 1.6 2 2.2 2.4 Socket No. 1 2 2 2 3 3 M1 3.2 4.4 4.6 5.2 6.6 6.8 M2 3.2 4.3 4.6 5.1 6.5 6.8 dp 2.3 2.8 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 1.75~3 1.75~4.4 1.75~5.25 2~6 -
Stainless Steel Countersunk Head Self Drilling ScrewsDetailDimension Table
AYA Fasteners’ stainless steel countersunk head self-drilling screws are high-quality fastening solutions designed for durability, efficiency, and safety. These screws combine the benefits of a self-drilling tip with a countersunk head, providing a seamless finish while eliminating the need for pre-drilling.
With sharped threads, these screws deliver superior holding power, reducing loosening over time. We can provide in a variety of sizes and specifications, ensuring compatibility with diverse applications such as roofing, decking, framing, and machinery assembly.
Thread Size ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3 P Pitch 1.1 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.4 1.6 1.8 1.8 dk max 5.5 7.3 8.4 9.3 10.3 11.3 min 5.2 6.9 8 8.9 9.9 10.9 k max 1.7 2.35 2.6 2.8 3 3.15 r max 1.2 1.4 1.6 2 2.2 2.4 Socket No. 1 2 2 2 3 3 M1 3.2 4.4 4.6 5.2 6.6 6.8 M2 3.2 4.3 4.6 5.1 6.5 6.8 dp 2.3 2.8 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 1.75~3 1.75~4.4 1.75~5.25 2~6 -
Stainless Steel Pan Head Phillips Self Drilling ScrewsDetailDimension Table
Stainless Steel Self Drilling Phillips Pan Head Screws, sometimes called Tek Screws, are designed to both bore and tap a hole through steel in one operation. Self Drilling Phillips Pan Head Screws are available in screw diameters from ST2.9 to ST6.3, and thread lengths from 9.50mm to 50.00mm. All of AYA’s Self Drilling Phillips Pan Head Screws are manufactured from high-quality Stainless Steel, and comply with DIN or ASME Standards. Additional material can be made available on request, please contact our sales team for details.
Thread Size ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3 P Pitch 1.1 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.4 1.6 1.8 1.8 dk max 5.6 7 8 9.5 11 12 min 5.3 6.64 7.64 9.14 10.57 11.57 k max 2.4 2.6 3.1 3.7 4 4.6 min 2.15 2.35 2.8 3.4 3.7 4.3 r min 0.1 0.1 0.2 0.2 0.25 0.25 R ≈ 5 6 6.5 8 9 10 dp 2.3 2.8 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 1.75~3 1.75~4.4 1.75~5.25 2~6 Socket No. 1 2 2 2 3 3 M1 3 3.9 4.4 4.9 6.4 6.9 M2 3 4 4.4 4.8 6.2 6.8 -
Stainless Steel Pan Head Self Drilling ScrewsDetailDimension Table
AYA stainless steel pan head self-drilling screws are manufactured using high-quality stainless steel, ensuring excellent resistance to rust, corrosion, and extreme weather conditions. These screws are ideal for both indoor and outdoor environments, providing long-term durability and performance. These AYA stainless steel pan head self-drilling screws are engineered for professionals who need reliable, high-performance fasteners for a variety of construction, industrial, and DIY applications.
Thread Size ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3 P Pitch 1.1 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.4 1.6 1.8 1.8 dk max 5.6 7 8 9.5 11 12 min 5.3 6.64 7.64 9.14 10.57 11.57 k max 2.4 2.6 3.1 3.7 4 4.6 min 2.15 2.35 2.8 3.4 3.7 4.3 r min 0.1 0.1 0.2 0.2 0.25 0.25 R ≈ 5 6 6.5 8 9 10 dp 2.3 2.8 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 1.75~3 1.75~4.4 1.75~5.25 2~6 Socket No. 1 2 2 2 3 3 M1 3 3.9 4.4 4.9 6.4 6.9 M2 3 4 4.4 4.8 6.2 6.8 -
Stainless Steel Hexagon Self Drilling ScrewDetailDimension Table
AYA Hex Washer Head Self-Drilling Screws are designed for superior fastening performance in various applications, providing reliable and efficient drilling without the need for pre-drilling.
Thread Size ST2.9 ST3.5 (ST3.9) ST4.2 ST4.8 (ST5.5) ST6.3 P Pitch 1.1 1.3 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.3 1.4 1.6 1.8 1.8 c min 0.4 0.6 0.6 0.8 0.9 1 1 dc max 6.3 8.3 8.3 8.8 10.5 11 13.5 min 5.8 7.6 7.6 8.1 9.8 10 12.2 e min 4.28 5.96 5.96 7.59 8.71 8.71 10.95 k max 2.8 3.4 3.4 4.1 4.3 5.4 5.9 min 2.5 3 3 3.6 3.8 4.8 5.3 kw min 1.3 1.5 1.5 1.8 2.2 2.7 3.1 r max 0.4 0.5 0.5 0.6 0.7 0.8 0.9 s max 4 5.5 5.5 7 8 8 10 min 3.82 5.32 5.32 6.78 7.78 7.78 9.78 dp 2.3 2.8 3.1 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 0.7~2.4 1.75~3 1.75~4.4 1.75~5.25 2~6 -
SS Hex Head Self Drilling ScrewsDetailDimension Table
AYA SS Hex Head Self Drilling Screws combine high-quality stainless steel with a practical hex head design and a self-drilling tip, offering a reliable and efficient fastening solution for various applications. Whether for construction, automotive, manufacturing, or DIY projects, these screws provide durability, ease of use, and superior performance.
Thread Size ST2.9 ST3.5 (ST3.9) ST4.2 ST4.8 (ST5.5) ST6.3 P Pitch 1.1 1.3 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.3 1.4 1.6 1.8 1.8 c min 0.4 0.6 0.6 0.8 0.9 1 1 dc max 6.3 8.3 8.3 8.8 10.5 11 13.5 min 5.8 7.6 7.6 8.1 9.8 10 12.2 e min 4.28 5.96 5.96 7.59 8.71 8.71 10.95 k max 2.8 3.4 3.4 4.1 4.3 5.4 5.9 min 2.5 3 3 3.6 3.8 4.8 5.3 kw min 1.3 1.5 1.5 1.8 2.2 2.7 3.1 r max 0.4 0.5 0.5 0.6 0.7 0.8 0.9 s max 4 5.5 5.5 7 8 8 10 min 3.82 5.32 5.32 6.78 7.78 7.78 9.78 dp 2.3 2.8 3.1 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 0.7~2.4 1.75~3 1.75~4.4 1.75~5.25 2~6 -
Stainless Steel Hex Washer Self Drilling ScrewsDetailDimension Table
AYA Hex Washer Head Self-Drilling Screws are designed for superior fastening performance in various applications, providing reliable and efficient drilling without the need for pre-drilling.
Thread Size ST2.9 ST3.5 (ST3.9) ST4.2 ST4.8 (ST5.5) ST6.3 P Pitch 1.1 1.3 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.3 1.4 1.6 1.8 1.8 c min 0.4 0.6 0.6 0.8 0.9 1 1 dc max 6.3 8.3 8.3 8.8 10.5 11 13.5 min 5.8 7.6 7.6 8.1 9.8 10 12.2 e min 4.28 5.96 5.96 7.59 8.71 8.71 10.95 k max 2.8 3.4 3.4 4.1 4.3 5.4 5.9 min 2.5 3 3 3.6 3.8 4.8 5.3 kw min 1.3 1.5 1.5 1.8 2.2 2.7 3.1 r max 0.4 0.5 0.5 0.6 0.7 0.8 0.9 s max 4 5.5 5.5 7 8 8 10 min 3.82 5.32 5.32 6.78 7.78 7.78 9.78 dp 2.3 2.8 3.1 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 0.7~2.4 1.75~3 1.75~4.4 1.75~5.25 2~6 -
Hex Washer Head Self-Drilling ScrewsDetailDimension Table
AYA Hex Washer Head Self-Drilling Screws are designed for superior fastening performance in various applications, providing reliable and efficient drilling without the need for pre-drilling.
Thread Size ST2.9 ST3.5 (ST3.9) ST4.2 ST4.8 (ST5.5) ST6.3 P Pitch 1.1 1.3 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.3 1.4 1.6 1.8 1.8 c min 0.4 0.6 0.6 0.8 0.9 1 1 dc max 6.3 8.3 8.3 8.8 10.5 11 13.5 min 5.8 7.6 7.6 8.1 9.8 10 12.2 e min 4.28 5.96 5.96 7.59 8.71 8.71 10.95 k max 2.8 3.4 3.4 4.1 4.3 5.4 5.9 min 2.5 3 3 3.6 3.8 4.8 5.3 kw min 1.3 1.5 1.5 1.8 2.2 2.7 3.1 r max 0.4 0.5 0.5 0.6 0.7 0.8 0.9 s max 4 5.5 5.5 7 8 8 10 min 3.82 5.32 5.32 6.78 7.78 7.78 9.78 dp 2.3 2.8 3.1 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 0.7~2.4 1.75~3 1.75~4.4 1.75~5.25 2~6 -
Stainless Steel Hex Head Self Drilling ScrewsDetailDimension Table
AYA Stainless Steel Hex Head Self Drilling Screws are engineered for both industrial and construction applications without the need for pre-drilling. Made from high-quality stainless steel, these screws offer excellent corrosion resistance, making them ideal for use in various environments, including outdoor and marine applications.
Thread Size ST2.9 ST3.5 (ST3.9) ST4.2 ST4.8 (ST5.5) ST6.3 P Pitch 1.1 1.3 1.3 1.4 1.6 1.8 1.8 a max 1.1 1.3 1.3 1.4 1.6 1.8 1.8 c min 0.4 0.6 0.6 0.8 0.9 1 1 dc max 6.3 8.3 8.3 8.8 10.5 11 13.5 min 5.8 7.6 7.6 8.1 9.8 10 12.2 e min 4.28 5.96 5.96 7.59 8.71 8.71 10.95 k max 2.8 3.4 3.4 4.1 4.3 5.4 5.9 min 2.5 3 3 3.6 3.8 4.8 5.3 kw min 1.3 1.5 1.5 1.8 2.2 2.7 3.1 r max 0.4 0.5 0.5 0.6 0.7 0.8 0.9 s max 4 5.5 5.5 7 8 8 10 min 3.82 5.32 5.32 6.78 7.78 7.78 9.78 dp 2.3 2.8 3.1 3.6 4.1 4.8 5.8 Drilling range(thickness) 0.7~1.9 0.7~2.25 0.7~2.4 1.75~3 1.75~4.4 1.75~5.25 2~6
