Lot of 20 SVSL-M3-8 NBK Socket Head Cap Vacuum Vented Screws with Ventilation Hole - SUS316L M3 length 8mm Made in JapanLot of 20 SVSL M3 8 NBK Socket Head Cap Screws with Ventilation Hole SUS316L M3 length 8mm Hex Socket Head Cap Screws with Fine pitch thread SVSL M3 8 NBK One Screw Characteristics: Made of SUS316L. Excellent corrosion resistance. The ventilation hole easily releases gas trapped in the screw holes of equipment and machines, and supports vacuum drawing of vacuum devices. Part Number M L D1 L1 B Quantity Per Pack SVSL M3 8 m3 8mm 5. 5mm 3mm 2. 5mm 1. 2