■ material: carbon steel ■ surface: nickel plating ■ thread: M3,M4,M5,M6 ■size:for 20 seires of aluminum profile ■packing:bag+carton+pallet ■free sample provided Detailed pictures for hammer head T nuts show: 20TM_ad.jpg 20TM-1_ad.jpg TM_ad.jpg Detailed size drawing for hammer head T nuts: 20TM-S_副本.png Installation application for hammer head T nuts: 20TM-installation_副本.png Our workshop: mmexport1475544394297_副本.jpg Our warehouse: 15086324982062894.jpg Our packing: 整装_副本.jpg