This is Yokomo High-Precision Cutting Brass M3x6mm Flat Head Screws 10 pcs. It is a brass screw that is used when fixing parts from the bottom of the machine and can be finished with soft rigidity while having the same weight as a steel screw. It is made by high-precision machining, and it is possible to improve the assembly accuracy of the machine. The size is M3 x 6 mm. Contains 10 pieces.
Yokomo High-Precision Cutting Brass M3x6mm Flat Head Screws (10 pcs)