Please note  : Picture just as a reference.the actual delivered goods shall prevail !

Type :  T type Square Nuts 

Apply To : For European standard  20 Series  Aluminum Profile

Model Size : M3 , M4 , M5 , M6

Please check which Size and the Quantity  you need . 

Note : the 30 series is Nickel plating , the 20/40/45 series are Zinc-Coated plating.