Скачать или смотреть Full details of Hex With Washer Self Drilling Screw production | HZ Fastener

Website : www.hzfastener.com E-mail : [email protected]

Hex self drilling screws can vary – the smaller screws are used in applications like fixing thin gauge metals and fixing metal to wood. The larger screws are used in roofing and other industries which require self-drilling through tough metals. Our screws come in stainless steel, alloy steel, carbon steel, and other materials that prevent corrosion. If the hex head self-drilling screws are used in extremely hard materials, it is advised to use them after a pilot hole has been drilled.

【specification】
♛Head Type: Hexagona Head
♛Point Type: Self Drilling
♛Thread Type: Coarse / Fine / Wing Teks
♛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

【Feature】
♛Made of hardened carbon steel, the screws offer strong pullout strength to hold the roofing sheets.
♛Sealing washers help against water penetration.
♛Commonly with corrosion coating.
♛Different points for different applications.
♛Sharp points for easy to screw in and damage a little.
♛Drill points for screw-in hard metal structure.
♛Various colors of paint on heads for specific applications.
♛Can be drilled near the edge of roofing sheets.
♛Long life service.

【appliocation】
♛Commonly used to fasten metal, plastic, and fiberglass roofing sheets to metal or wood structures: the roofing screws with drill points for metal structures and the ones with sharp points for wood structures.
♛Ideal for fastening the overlap roofing sheets.

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