51 Type different Screws head.
Special Short Shaft and Flex Shaft Most favor to Boat installation.
Good Quality Stainless Steel : up to HR56
T3....T10, T15, T20
Philips 001.5, 002.0, 0, 1, 2
Hex M2.5....5.5
Hex 1.0 ... 4.0
- 1.3, 1.5, 2.0, 2.5
* 0.8, 1.5, 2.0
^ 2.0, 2.3, 2.6
PZ 0, 1
Y 1.5, 2.0, 3.0
H 2.3 O. 1.0
