Lot of 10 SVLS-M8-20 NBK Socket Head Cap Vacuum Vented Screws with Ventilation Hole with Low Profile M8 length 20mm Made in JapanLot of 10 SVLS M8 20 NBK Socket Head Cap Screws with Ventilation Hole with Low Profile M8 length 20mm Socket Head Cap Screws with Ventilation Hole with Low Profile SVLS M8 20 NBK 10 Screws Characteristics: The ventilation hole easily releases gas trapped in the screw holes of equipment and machines, and supports vacuum drawing of vacuum devices Socket head cap screws have low head heights. These screws are intended for the reduction of the size of