The Torpedo hitch pin is a high-security locking hitch pin that was designed and developed here in Australia for demanding consumers and climates. Suitable for DO35 hitches, Poly block hitches and most other hitch systems, the Torpedo hitch pin is made from high-strength steel and is tow-rated up to 3500kg. Give yourself some peace of mind with this small but strong hitch pin you can take with you anywhere.