These bolts are for tapped threaded hole flanges and follow ISO-LF standards for flange sizes of NW-63. ISO flanged vacuum fittings are commonly used to build process vacuum plumbing and systems for industrial applications. The fittings are quick to assemble using double claw clamps and a centering ring. The Viton? centering ring contains a rubber/elastomeric o-ring. The ISO standard sizes for large flanges are NW-63, NW-80, NW-100, NW-160, NW-200, NW-250, NW-320, NW-400, NW-500, NW-630. These vacuum fittings are made of corrosive resistant stainless steel.

Bolts, for Tapped Threaded Hole NW-63, Vacuum Flanges, Stainless Steel, Quantity of 4

ISO-LF Flange Size: NW-63

Quantity: 4 bolts include washers

Common Dimensions: Bolt Size M8X30 Pitch 1.25mm