M10 threaded bar / studding in A2 / 304 stainless steel
Strength is midway between mild steel and high tensile.
Being stainless it can be cut to length without increased risk of corrosion.
Nuts and washers (both stainless) for this item are here.
P&P is cheaper for the 0.5m length (only) if you phone the order through ! The 1.0m length must go by carrier so is the standard carriage charge.