Description: DIN 7991 – 1986 Hexagon Socket Countersunk Head Cap Screws
Application :The driving of this screw with a hex wrench or insert bit makes these screws more efficient than slotted screw products, as the hex socket drive has more resistance to cam-out, and can be used alongside power drivers, enabling faster installation and higher torque to be achieved.
Type: machine screw
Materials: Steel , stainless steel A2/A4
Surface treatment: zinc plated, black oxide, hot dip galvanized, passivated
Head Type: Socket Countersunk head
Standard: DIN 7991 – 1986
Certificate：Material Chemical Certificate, Inspection Report
About us
Shanghai ScrewTool Industrial is a subsidiary of Jiaxing Victor Screw Company, we serve the market of end-user customers , supplying economic fastener solutions to industry customers.
Address:
Office: #1409, No.26, Lane 777, Guangfulin Road, Songjiang District, Shanghai, China 201600
Factory: No.1, Guan-He Road, Haitou Town, Lianyungang, China