A over order in stock offers  pkt`s of 10  units of 10 mm threaded  Unistrut channel nuts fitted with long spring.

BZP plated steel overall size base tapped plate 35 x 20 x 8 mm thick 

Overall height including  plate with spring 42 mm approx

      weight pkt of 10 units 336 grams ( no bolts supplied )
                                                                                 my loc grey box lower marki shelf