The ball head hexagonal head canbe used at multiple angles, it is easyto enter the hexagonal nut, and thetorque is relatively small.
The flat head hexagonal headscrewed deep hole nut has a largestress area, can be used with addedforce, and has large torque.
Shandong Lisheng Machinery Co., Ltd.lt is a new generation enterprise dedicated to the machinery and tools industry.It is located in jining, Shandong Province, the hometown of Confucius and Mencius.The hardware tools and machinery produced by our factory has advanced tech-nology With complete equipment and stable quality, it sells well all over theworld.We support customization, and provide a variety of materials and process options, welcome to inquire!