As the professional manufacturer, we would like to provide you high quality 1022A+SCM435 Hot Rust Treasure Hex Flange Head Roofing Screw /Self Tapping Screw/Composite Screws/Bi-Metal Screw.
Self-tapping screws are often exposed outdoors and have strong corrosion resistance. The rubber sealing ring can ensure that the screw is impervious to water and has good corrosion resistance.
Self-tapping screws are usually described by screw diameter series, screw number per inch length and screw length. There are 10 and 12 screw diameter series, the corresponding screw diameter is 4.87mm and 5.43mm respectively; There are 14, 16 and 24 threads per inch. The more threads per inch, the better the self-drilling capability.
1022A+SCM435 Hot Rust Treasure Hex Flange Head Roofing Screw /Self Tapping Screw/Composite Screws/Bi-Metal Screw
|DIN,ASTM/ANSI JIS EN ISO,AS,GB
|Stainless Steel;Hot rust treasure;mechanical zinc plating
|Steel Grade: DIN: Gr.4,5,6,8.8,10,; SAE: Gr.2,5,8; ASTM: A563
Polishing, Plain, Sand Blasting;Hot rust treasure;mechanical zinc plating
hex bolt；socket bolt；carriage bolt；T bolt；thread rod
|Busy season:15-30days,Slack seaon:10-15days
|stainless steel:bolts and nuts
|Get Free Samples for standard fastener from Gangtong Zheli Fastener