The FTX GRUB SET SCREW M4 X 4MM FTX-SS021 would be most suitable in applications requiring high precision and reliability, such as automotive engine parts or electronic devices, due to its accurate threaded size and robust material.
FTX GRUB SET SCREW M3 X 3MM FTX-SS010
FTX RAVINE SET SCREW 2.5 X 2.5MM (12) FTX7309
FTX CENTAUR CRUB SCREW BOLT 3*20MM FTX10466
Axial M3 x 30mm, Cup Point Set Screw (10) Z-AXI235330
JConcepts 4-40 Future Thumb Nut w/ Set Screw 2pc - Blue JC5240-1
CARISMA M40S 2.0 3MM SHAFT COLLAR WITH GRUB SCREW SET CA16669