Keywords: hammer bolt, hammer head bolt, T bolt, T slot bolt. Function: the installation for stainless steel series is very convenient,put it directly into the slot from outside of the profile, clockwise 90 degrees for automatically locking, this series of products are widely used in outdoor equipment such as solar photovoltaic power plant. Materials: carbon steel Threads: M8 Surface Length: 70mm Customized deigns are accepted Packing: polybag, polybag in carton, then in pallets With other various types, each type has various densities of stripes on surface