2022 wholesale price Winged Self Tapping Screws - DIN 7984 – Hexagon socket thin head cap screws High strength bolt 8.8 Grade 12.9 Grade Factory Direct Sales – Dashan

Carbon steel hex socket screws are divided into 4.8, 8.8, 10.9 and 12.9 grades according to strength, among which 4.8 grade is common hex socket screws, 8.8-12.9 grade is high strength and high grade hex socket screws.Socket head cap screw is often used in mechanical fastening internal links, due to its head type external circular, can very good embedded in various junction surface, target as long as make a round hole, screw head can also be very good into the target plane, and remove the simple, hexagonal rods or pneumatic electric gun can be within the scope of work with little work. DIN7984 hex socket screws are German standard, thread specifications from M1.4 to M64