500 X 1/4" Stainless steel (metal) Tripod screws.
1/4" metal male thread with flat head screwdriver slot.
Shaft is 10mm in length, approx 5.1mm threaded, 5mm unthreaded
Total length including base is 13.1mm.
Head Diameter is 12mm.
Enter a buy quantity of 1 and you get 500 screws.