Brass is a material that can never rust. Brass padlocks are available in a huge number of sizes and variations.
Robust, universal and reliable - The wide range of variants from ABUS
ABUS 75IB/50 Chrome-Plated Solid Brass Padlock —
Abus 65/50 Brass Padlock
Brass Padlock & Cabinet Locks, Abus Brass Padlocks – Lock Shop
ABUS 70IB All Weather Padlock Keyed to Differ
Abus T84MB/40 B KD Blue Weatherproof Brass Padlock Outdoor Nautic Locks - The Lock Source
ABUS 65 SERIES SOLID BRASS PADLOCK - KEYED DIFFERENT - MBA USA, Inc.
ABUS Brass 82 Monobloc Security Padlock 82/70 Keyed Different
ABUS 65IB/40 Brass Padlock - 63mm Stainless Steel Long Shackle
Abus Vinyl Coated Lockout Padlock, Keyed Differently, Yellow
Abus Vinyl Coated Brass Padlock Yellow