1. Descriptions:
Flat Head Winged Sheathing Screw is self drilling screws with
wings, Type T4PF flat head Tek 4 winged drill point screws are
designed for attaching plywood and sheathing to heavy gauge metal.
NanoGard exterior grade coating improves corrosion resistance
Performance range is lumber (1/4 to 1”) to 16 gauge steel to .210
steel.
We are factory to supply full range of self drilling screws. every
month we can ship 15-20 containers to the world market....
2. Specifications:
1. Name: Flat Head Winged Sheathing Screw
2. Material: stainless steel, carbon steel
3. Size: #4x3/8''~~#14x8''
4. Thread Type: Type BSD, Type ASD, Type CSD, with wings, with
flute, with Notch
5. Point: drill point with wings
6. Groove: philips , square, pozi , torx , slot , 6-Lobe drive
7. Packing: bulk packing, small box packing, plastic box packing,
as customer requirements
3. Applications:
Self Drilling Screws, Also Known as TEK Screws, Drill Point, Self Drillers and Self
Tapping
Self Drilling Screws are used primarily when fastening into steel
or other metals and are typically used to join materials like sheet
metal.
Point Wings are used on some screws that fasten thicker materials,
such as wood, to metal. The wings enlarge the hole in the fastened
material, allowing the threads to pass through without contacting
the fastened material. This added clearance prevents separation of
the fastened material from the base metal (known as "jacking"). The
wings will break away on contact with the metal before the threads
engage in the metal..
4. Drawing Technical Data
| Coarse Thread Self Drilling Screws – #3 Point |
| Nominal Size or | Threads | T | t | A | B |
| Basic Screw | Per Inch | Major Diameter | Minor Diameter | Drill Point Length | Drill Point Diameter |
| Diameter | | Max | Min | Max | Min | Max | Min | Max | Min |
| 5/16 | 0.3125 | 12 | 0.315 | 0.307 | 0.272 | 0.263 | 0.421 | 0.361 | 0.27 | 0.265 |
| 3/8 | 0.375 | 12 | 0.38 | 0.37 | 0.308 | 0.298 | 0.354 | 0.314 | 0.338 | 0.33 |
5. Advantages:
1.The Special technology treatment of the surface makes the product
anti-corrosion , antirust and durable.
2.Exact forging standard of knife edge and high hardness of surface
make it easy to drill.
3.Using the advanced technology to control the core hardness,
avoiding rupture effectivity,
4. Quick self drilling , drilling , tapping, locking the oncce, and
combining with the strength.
5. Save contruction time, improve working efficency.
6. Technology, professional manufacturing , quality assurance.
6. More pictures:
Wing Tek Self Drilling Screws, Self Drilling Screw, Winged
