We adopt advanced manufacturing technology from Taiwan and have extensive experience in the industry. Our company is equipped with state-of-the-art machinery and production lines, supported by a team of skilled technicians and efficient administrative staff. With many years of experience, we are committed to delivering high-quality products and exceptional service that meet all customer needs. Our strict quality control ensures that our products are well-received by clients around the world.
Our main product range includes self-drilling screws, self-tapping screws, Tek screws, roofing screws, Buildex screws, particle board screws, sheet metal screws, bi-metal screws, thread-cutting screws, thread-forming screws, and more.
Key specifications:
- **Standard:** ISO 15480, DIN 7504
- **Diameter:** 2.9mm – 8.0mm
- **Length:** 9.5mm – 350mm
- **Material:** Carbon steel & stainless steel
- **Plating Options:** White/Yellow/Black Zinc, Dacromet, Ruspert, Plain, Xylan, etc.
- **Packing:** Bulk, PP bags, plastic boxes, color boxes in cartons with pallets
Product Features:
- **Model No.:** 3.9 / 4.2 / 4.8
- **Type:** Hexagon Head with Flange
- **Head Style:** Hexagonal
- **Connection:** Self Drilling
- **Color:** Painted Head
- **Washer:** EPDM Bond Washer
- **Stock Availability:** Yes
- **Box in Carton:** Brown or Color Box in Carton
- **Wing:** Customized
- **Serration:** Csk 4/6 Ribs
- **Transport Package:** Box in Carton, Bulk in Carton (as required)
- **Specifications:** DIN, ANSI, GB, IFI
- **Origin:** China
- **HS Code:** 7318140000
Below is a detailed table showcasing various types and specifications of screws:
FLAT | PAN | HWH | HWF | BUGLE | WAFER | PAN WASHER | OVAL | TRUSS | ROUND | |
DRIVE | Â | Â | Â | Â | Â | Â | Â | Â | Â | |
PHILLIPS | SQUARE | POZI | SQUARE+PHIL | TORX | SLOTTED | PHIL+SLOTTED | OTHER | Â | Â | |
POINT TYPE | Â | Â | Â | Â | ||||||
TEK#1 | TEK#2 | TEK#3 | TEK#4 | TEK#5 | TYPE 17 | Â | Â | Â | Â | |
THREAD TYPE | Â | Â | Â | |||||||
TYPE-A | BSB TYPE | CSB TYPE | HI-LOW | MACHINE | DOUBLE | OTHER | Â | Â | Â | |
10#-12 THD | 6#-20 THD | 8#-32 THD | Â | Â | Â | Â | Â | Â | Â | |
12#-11 THD | 7#-19 THD | 10#-24 THD | Â | Â | Â | |||||
14#-10 THD | 8#-18 THD | 12#-24 THD | Â | Â | Â | |||||
 | 10#-16 THD | 14#-20 THD |  |  |  | |||||
PLATING | Â | Â | ||||||||
PLAIN | ZINC PLATED | COLOR ZINC PLATED | BLUE ZINC PLATED | BLACK PHOSPHATE | GRAY PHOSPHATE | BLACK ZINC PLATED | WHITE ZINC PLATED | Â | Â | |
BLACK OXIDE | DECROTIZEO | RUSPERT | XYLAN | NICKEL | BRONZE | SPRAY PAINT | OTHER | Â | Â | |
 |  | |||||||||
SERRATION UNDER HEAD | W / O WASHER | W / BONDED WASHER | W / PVC WASHER | W / STEEL EPDM | W/RUBBER WASHER | W / HEAD MARK | W / WING | OTHER | Â |
Scholastic Paper,Woodfree Scholastic Paper,Scholastic Writing Paper,White Scholastic Paper
Puyang Longfeng Paper Co.,Ltd. , https://www.lonfonpaper.com