Stainless steel T-bolt, also known as hammer head bolt or T-slot bolt, conforms to GB/T37 standard. Made of SUS304 (A2-70) or SUS316 stainless steel. The T-shaped head can slide directly into the aluminum profile groove. It realizes automatic positioning during assembly and locks with flange nut. The T-head is fixed inside the groove to prevent rotation for easy and adjustable installation. Features excellent rust and corrosion resistance and stable mechanical strength with passivated finish. Available in metric sizes M5, M6, M8, M10, M12, customizable length. Widely applied in aluminum profile frames, solar mounting brackets, machine tool fixtures, assembly lines, outdoor equipment and rail transit, serving as standard fasteners for slotted structures.