Products Name：Customized special flat head self-drilling screws
Surface treatment: passivate, plated, polishing
Material: Aluminum / stainless steel
Head/Tread styles: According client's requires
Tips for Use
1 . Use a hex wrench to drive set screw .
2 .The thread moving direction is from right to left to drill into workpiece , and back out in reverse direction .
3 . Do not use a sharp tool or bladed tool to drive the screws .
4 . Do not scratch the screw in harden something in order to keep bright surface .
5 . Keep the set screw in the dry warehouse .
Yuyao Jianfeng Hardware Co., Ltd. was established in 2004.is a professional China Customized special flat head self-drilling screws factory.Please contact us if you have any enquiry