Loose bolts/nuts/washers M30 acid-resistant or galvanised

Loose bolts, nuts and washers in size M30 are used when a flanged joint needs completing or when individual parts need replacing, instead of ordering a complete bolt set. M30 is the size found in flanged joints with 33 mm holes, for example PN10 in DN800 and DN900, PN16 in DN500 and PN25 in DN350. The bolts are available in acid-resistant design for corrosive environments and in galvanised design for normal installations, with lengths from 120 mm up to 280 mm. Choose the bolt length according to the flange wall thickness and gasket thickness so that the nut achieves full thread engagement. The nuts in acid-resistant design are treated against seizing, making them easier to tighten and loosen during installation and service.