Color: 22 Pcs Thread Reducer Screws This is international standard precision made 1/4"to 3/8" Threaded Screw Adapter.
Material: Aluminium alloy And Stainless Steel (metal) 5 Pcs 1/ 4 inch to 3/ 8 inch male threaded screw adapter 5 Pcs 1/ 4 inch to 1/ 4 inch male threaded screw adapter 5 Pcs 1/4" female to 3/8" female screw adapter 5 pcs 1/4 inch female to 3/8 inch male screw adapter 2 pcs 1/4" to 3/8" male to female brass screw.