There is a Torx button head for 10/50 PC with pin screws
Description:
Material: 304 (A2-70) Stainless Steel
Size: D (thread diameter) XL (thread length)
Metric Thread Diameter:
M3 (3 mm) / M4 (4 mm) / M5 (5 mm) / M6 (6 mm)
Wire metric pitch:
0.02 inch (0.5 mm) (M3) / 0.03 inch (0.7 mm) (M4) / 0.03 inch (0.8 mm) (M5) / 0.04 inch (1 mm) (M6)
Thread Length: 0.2 - 2.0 inches (6 - 50