The stainless steel adapter cube from LBTEK is machined from a solid 304 stainless steel block to provide exceptional structural rigidity and durability. Its surface undergoes passivation treatment to enhance the natural protective layer while removing debris and oils for improved cleanliness. The cube is demagnetized for compatibility with low-magnetic environments. The top features an M4 countersunk hole for connection to Ø12.7 mm stainless steel optical posts using M4 socket head cap screws, while four M4 tapped holes on the sides enable adaptation to other LBTEK mechanical components.