Description:
1. Material: Both the screws and metal washers are made of carbon steel, the surface of the screws is galvanized, with fine workmanship, strong and durable, corrosion-resistant, and not easy to rust; the washers are made of EPDM, which is wear-resistant, anti-oxidation, and has a long service life.
2. Design: The head of these self-drilling screws has a tip that can cut the material when rotating, and can be easily driven into the substrate, providing better torque transmission and more stable performance. The force is evenly distributed and not easy to slip, suitable for replacing old screws at any time. The hexagonal washer head has a flange and an EPDM rubber gasket at the bottom to prevent leakage, loosening and damage to the mating surface.
3. Easy To Use: Simple operation, convenient and quick installation. Hexagonal head, easy to drive, able to drill holes by itself during installation, no pre-drilling is required, you only need to use a power drive tool to install it.
3. Wide Application: The hex head self-tapping screws are commonly used for metal-to wood, and metal-to-metal, they are suitable for thin metal, roofing, steel nails, DIY furniture appliance repairs, electronic products, etc.

Specification:
Material: Carbon Steel
Color: Silver Tone
Thread Dia.: #12 (5.5mm)
Length(not include hex head): 2"(50mm)
Thread Pitch: 1.8mm
Hex Head Size: 8x5.4mm / 0.31" x 0.21"(WxT)
Flange Dia.: 11mm / 0.43"
Washer Size: 16 x 3.5mm / 0.63" x 0.14"(D*T)
Package Content: 200Pcs x Self Drilling Screws