Left; Hammer-formed finals (4mm thick, ground, beaten & polished).
Centre: Hardwood bucks routered from decking off-cuts.
Right: Original plastic steps (loading caused rust in underlying structure).
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No annealing required. Machined nylon66 interfaces stuck with PU sealant.
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Fixings are M8 stainless countersunk bolts & M8 square weldnuts.
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themetalstore.co.uk – aluminium 5 bar checker plate
duckduckgo.com – square weld nuts
Sikaflex – EBT+ polyurethane adhesive
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knoba 