Pb fastener zinc plated steel mf spacers m5 packs of 10 pb fastener s48050x45 these zinc plated steel mf spacers m5 x 45mm from pb fastener amp components are 45mm long hexagonal m5 tapped spacers manufactured to a high standard using galvanised steel and designed with a 1x 10mm external male thread and 1x 11mm internal female thread at each end these quality spacers fit a 8mm spanner opening and come supplied in packs of 10 pb fastener s48050x45 zinc plated steel mf spacers m5 x