Release time：2020-01-16 18:44 Browse：
Hex Washer Head Extra Long Bi-Metal Self-Drilling Screw with EPDM Washer
This product is a one-piece extra-long bi-thread self-drilling screw with a hex washer head, suitable for heavy-duty applications such as steel frame assembly, thick steel plate fastening, and metal roofing systems. Made from carbon steel or stainless steel, it offers high strength and excellent corrosion resistance. The screw features a #5 drill point with triple-flute design and a moon-cut tip, allowing efficient chip removal and smooth penetration through steel plates of 6 mm thickness or more. The EPDM-bonded washer provides superior waterproofing, making it suitable for outdoor use.
Features:
Hex washer head ensures stable installation and anti-slipping
Bi-thread design enhances holding power
#5 drill point with triple-flute design for efficient drilling
Moon-cut tail prevents jamming and improves drilling speed
Equipped with EPDM sealing washer for long-term water resistance
Customizable length, surface coating, and material available
