China wholesale galvanised metal hexagon head tek wood stainless steel hex self drilling screw with epdm washers roofing screw

Products Details

Shandong Jute Steel Pipe company established in 2001,now,We are equipped with advanced production equipment,such as hot rolling production line,punching lines,fine rolling production lines and cold drawing production lines.Our company specializes in the production of various seamless steel pipes. Our products include common seamless steel pipes,fine pull pipes,fine rolled pipes,alloy steel pipes,special pipes,sheet steel,Steel pipe deep processing,etc. Our company invites a group of excellent technical experts and management personnel in domestic steel pipe industry to improve the technical levels of our products.Shandong Jute Steel Pipe Co.,Ltd. Contacts: Mr. Ji WhatsApp: +86 18865211873 WeChat: +86 18865211873 E-mail: jutesteelpipe@gmail.com E-mail: juteguanye@aliyun.com
Product Name China wholesale galvanised metal hexagon head tek wood stainless steel hex self drilling screw with epdm washers roofing screw
Size M2-M24,or non-standard as request&design
Material Stainless Steel,Alloy steel,Carbon Steel,Brass,Aluminum and So on
Grade 4.8,8.8,10.9,12.9.etc
Standard GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS etc
Non-standards OEM is available, according to drawing or samples
Finish Plain, black, zinc plated/according to your requirement
Certification ISO9001,IATF16949,
Package according to customers requirement

How are self drilling screws measured?

They are measured from the top of the head to the tip. Hex and hex washer head screws and bolts, although flat on the top and the bottom, are measured from the bottom of the head. From that point to the tip is the length of the screw. Self drilling screws are measured all the way to the end of the drill point tip.Do you need a pilot hole for self drilling screws?  While self-tapping screws will tap a hole into a soft material, self-drilling screws are capable of drilling a hole into anything from metal to wood. This key difference is self-drilling screws have a tip like a drill bit, so they do not need a pilot hole.Do you need a pilot hole for self drilling screws?  While self-tapping screws will tap a hole into a soft material, self-drilling screws are capable of drilling a hole into anything from metal to wood. This key difference is self-drilling screws have a tip like a drill bit, so they do not need a pilot hole. washers roofing screw6 washers roofing screw7 washers roofing screw8 washers roofing screw9

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