This versatile optical screw kit contains various sizes of Self-Aligning, Self-Tapping, and EZT screws. This universal kit allows the optician to easily replace missing eyewire and hinge screws. Screws come packaged in a partitioned clear container with index card in the lid - 25 screws per type, 300 total pieces.
Sher-Lock™ is an inert substance that is specifically designed to create a tighter fit that is resistant to loosening from operational movements and vibrations. The rubber based coating remains pliable, does not disintegrate and it has a very long working life.