Roofing Screws, Siding Screws, Pole Barn Screws, Screws with Bonded Washers Manufacturer in China

Zhenkun offer Roofing Screws, Siding Screws, Pole Barn Screws, Screws with Bonded Washers in different sizes & standards.Roofing Screws, Siding Screws, Pole Barn Screws, Screws with Bonded Washers are also available in different materials and grades.Roofing Screws, Siding Screws, Pole Barn Screws, Screws with Bonded Washers used for construction materials for projects such as docks, bridges, highway systems, mechanical equipment,and homes, among other things.

Roofing Screws

Roofing Screws, also called a Siding Screws or a Pole-Barn Screws, are a specific type of self-tapping screw with a pre-assembled steel and neoprene washer to protect against the elements. They usually have a hex washer head and come in a variety of points depending on the application.

Roofing Screws Diameters

Roofing Screws are available from Zhenkun factory with Imperial/US diameters that range from #2 to 2 and with Metric diameters that range from M4.2 to M6. The length of Roofing Screws is usually measured from the point to the underside of the head.

US/Imperial diameters

• •#2     •#6     •#8     •#10     •#12     

• •#14     •1/4     •5/16     •3/8     •9/16     

• •5/8     •3/4     •7/8     •1 1/4     •2     

Metric diameters

• •M4.2     

• •M5     

• •M6     

Roofing Screws Lengths

Roofing Screws are available from Zhenkun factory with lengths that range from 5/16 to 10.

US/Imperial lengths

• •5/16     •3/8     •7/16     •1/2     •5/8     •3/4     •7/8     •1     

• •1 1/4     •1 3/8     •1 1/2     •1 7/8     •2     •2 1/4     •2 1/2     •2 7/8     

• •3     •3 1/2     •4     •5     •6     •7     •8     •10     

Metric lengths

• •6     •8     

• •13     •16     

• •20     •25     

Roofing Screws Materials

Roofing Screws are available from Zhenkun factory in materials that range from Steel to Rubber, Buna-N etc.

• •Steel     •300 Stainless (A1,A2, 18-8,304,310 etc.)     •316, 317, A4 Stainless     •400 Stainless (405, 410,416,420,430 etc.)     •Copper     

• •Aluminum     •Silicon Bronze     •Plastic     •Rubber, Buna-N etc.     

Roofing Screws Finishes

Roofing Screws are available from Zhenkun factory in finishes or coatings that range from Plain to Painted

• •Plain     •Zinc/Clear     •Zinc/Yellow     •Zinc/Black     •Galvanized     

• •Aluminum zinc flake (Dacromet, Magnigard, Doerken)     •Anti-corrosion (Stalgard, Climaseal, XLCoat)     •Black Oxide     •Painted