20-Pack SVSQS-M12-30 NBK Cross Recessed Flat Head M12 length 30mm Vacuum Vented Screws Japan Made

Lot of 5 SVSQS-M12-30-NBK Cross Recessed Flat Head M12 length 30mm Screws

SVSQS-M12-30 NBK Hex Socket Head Cap Screws with Captive Washer and Ventilation Hole. Pack of 20

Part Number	M	L	D1	D	L1	B	t	T (Approx.)	d (max.)
SVSQS-M3-5	M12	30mm	18mm	24mm	12mm	10mm	2.5mm	3	3

The ventilation hole easily releases gas trapped in the screw holes of equipment and machines, and supports vacuum drawing of vacuum devices. Flat washers and spring washers are captive, therefore prevent separation from screws. It is unnecessary to assemble washers. It simplifies work when wearing gloves in a clean room. Application: Vacuum devices, vacuum chambers, FPD production equipment,semiconductor devices, and electron microscopes