ZSPEC's black and silver anodized billet-aluminum battery bracket kits with stainless rods and fasteners.
These work well with both traditional (OEM-style) and flat-top style aftermarket batteries. The kit includes the top bracket, two replacement stainless battery "rods" and stainless fasteners. Note - the rods are 195mm long and come with 30-mm fasteners (measure your battery before ordering to ensure fitment).
Requires basic hand-tools for installation (not included).