Website : www.hzfastener.com E-mail : admin@tjhz.com

Self Drilling Screw have a point that acts as a drill bit and sharp cutting threads that tap the hole during installation. Self drilling screws are a commonly used variety of screw for quick drilling into both metal and wood. However, self-drilling screws can usually be identified by their tips and groove (notch) tips.

【Product Attributes】
♛Color: Plain,Zinc Plated
♛Screw Length: 9.5mm~127mm
♛Diameter: m3.5 / m3.9 / m4.2 / m4.8 / m5.5 / m6.3
♛Finish: Black / Grey Phosphated,Yellow / Blue White Zinc
♛Packing: Small box or bulk in carton with or without pallet
♛Service: OEM/ODM is accepted

【Feature】
♛Engraved on metal and wooden surfaces, so there is no need to drill a separate pilot hole.
♛Full thread: The screw structure with full thread ensures that the screw can better distribute the tension and withstand greater force in a longer period of time.

【The difference between self-tapping screws and self-drilling screws】
♛The most important difference between self-tapping and self-drilling screws is that self-tapping screws cannot go through metal without a pilot hole, which must be pre-drilled or pre-punched.
♛Unlike self-tapping screws, self-drilling screws need no pilot hole to cut and fasten; they can drill, tap, and fasten in one go, which saves you the extra step of drilling, then fastening.
♛However, between the two, self-drilling screws have two obvious advantages: saving time and cost during assembly, and reducing installation errors. If the size of a drill is wrong, installation errors usually occur.

【Application】
♛Solar panel installation
♛Metal-to-metal fastening
♛Metal and light steel framing
♛Used for heavier gauge metal fastening applications

Welcome to email(admin@tjhz.com) us for inquiry&visit our official website (www.hzfastener.com) to view more about us.

Tianjin Huazhen Fastener Co.,Ltd
Add: Unit 709, Yinli Center, No.111 South Youyi Road, Xiqing District 300385, Tianjin,China

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