Self drilling screws, also known as ADS screws, are a commonly used type of threaded fastener. The tail end of the screw has a drill bit-like structure that can automatically drill holes, cut threads, and complete fastening when screwed into the material.
Drill screws are different from self-tapping screws, they are highly efficient fasteners that can be directly driven into thin metals, wood, and composite materials without the need for pre-drilling. They combine the functions of a drill bit, tap, and screw. In steel structure engineering, they achieve the lightest load and fastest cutting speed.
Specifications
| Size | Diameter #6 – #14, length 10 – 500 mm. |
| Thread | UNC thread, UNF thread, ISO thread, Metric thread, Imperial thread, Full thread, Half thread, Coarse thread, Fine thread |
| Material | Carbon steel, stainless steel(304, 316, 410), brass, aluminum alloy |
| Strength | Grade: 4.8, 6.8, 8.8, 10.9, 12.9; A2-70, A2-80, A4-70, A4-80 |
| Head Types | Hex washer head, flat countersunk, pan head, truss head, etc. |
| Standard | ISO, DIN, UNI, JIS. |
| Packaging | Plastic bag packaging, plastic box packaging, cardboard boxes, pallets or customized packaging services. |
Self Drilling Screws Manufacturer in China
Surface Finishing
| Hot-dip Galvanizing | Black Oxide | Nickel Plating | Phosphating | Polishing | Dacromet |
| Black Zinc Plating | White Zinc Plating | Stainless Steel Passivation | Mechanical Galvanizing | Color Zinc Plating | Chrome Plating |
| Powder Sherardizing | Olive Zinc | Copper Plating | Composite Plating | Electrophoresis | Baking Paint |
| Rustban Coating | Silver Plating | Cadmium Plating | Gold Plating | Zinc-Nickel Alloy | Electroless Nickel |
| Teflon (PTFE) | Atotech | QPQ | Cleaning | Nylok (Nyseal) | Magni Coating |
| Anodizing | Adhesive Coating | Zinc-Aluminum-Magnesium | Blue Zinc Plating | Yellow Zinc Plating | Zinc-Cobalt Alloy |
Advantages of Self-Drilling Screws from 51fasteners
Phillips Self-Drilling Screws
Phillips Pan Head Self-Drilling Screw
Standard: DIN 7504N, DIN 7504M, DIN 7516, NF E25-857, JIS B1124
- Diameter: ST3.5-ST46.3
- Length: 13-100mm
Phillips Countersunk Thread Cutting Screw
Standard: DIN 7504P, DIN 7504O, DIN 7504 R, DIN 7516DE, ISO 15482, JIS B1125, NF E25-858, UNI 8119
- Diameter: ST3.5-ST6.3
- Length: 13-100mm
Phillips Wafer Head Self-Drilling Screw
Standard: AS 3566.1-1.2
- Diameter: ST3.5-ST6.3
- Length: 13-100mm
Hex Self-Drilling Tapping Screws
Hex Washer Self-Drilling Screw
Standard: DIN 7504K, DIN 7504L, ISO 15480, NF E25-856, UNI 8117
- Diameter: ST4.2-ST6.3
- Length: 16-165mm
Hex Flange Thread Cutting Screw
Standard: GB /T 15856.4
- Diameter: ST4.2-ST6.3
- Length: 16-165mm
Torx Thread Cutting Screws
Torx Pan Head Thread Cutting Screw
Standard: QC/T 875, AS 3566.1
Torx Flat Head Thread Cutting Screw
Standard: QC/T 873, QC/T 874
Self-Drilling & Tapping Screw Production Process
Customized Combination W/Screw & Washer
- RAL, RR or customized colors option
- Complete automatic production system
- Automatic Spray Painting Machine
- High Production Capacity
- Evenly Painted
- Obvious Head Marking
- Large Automatic Oven with Stabilized Temperature
- Customized Paint Colors (RAL and RR)
- High Quality Paint Powder
- SGS Certified
- Well-managed QC Tests
Select Self-Drilling Screws for Your Project
Self-drilling screws are widely used in metal curtain walls, metal strips, indoor and outdoor applications, steel structures, angle steel, channel steel, aviation, and many other industries.
- Construction and Steel Structures – Fixing of wall panels and ceiling panels such as light steel studs, color-coated steel sheets, resin tiles, rock wool boards, composite panels, etc.
- Automotive Manufacturing – Sheet metal parts, body assembly
- Furniture – Aluminum doors and windows, wooden structure decoration
- Livestock – Animal husbandry, aquaculture fencing and factory construction
- Mechanical Equipment – Used for securing industrial and civilian equipment components.
- Home Appliances – Used for fixing air conditioning and refrigeration equipment, smart home devices, and traditional appliances.
- Shipbuilding Industry – Decks, bulkheads, doors, ventilation systems, pipe supports, bathroom fixtures, fences, lighting systems, and signage.
Custom Self-Drilling Screws
