Brady, 123399, Yellow Long Body Safety Padlock with 1.5" Shackle, 6 pcs (Keyed Different) Features: Nylon Padlocks have nonconductive fiberglass-reinforced nylon bodies and unique key cylinders that prevent electricity from traveling from the shackle to the key. Lightweight, nonconductive and non-sparking body. These lightweight padlocks comply with all OSHA requirements and offer superior temperature, chemical and corrosion resistance. Non-conductive nylon padlocks are a safer alternative to metal locks for lockout applications. Each padlock is keyed differently with keys precision-machined to exacting standards, so that the key for one lock will not open another in the set.