Boss Locker When you want a custom look without drilling or expensive modifications, choose Putco Boss Locker Side Rails. Boss Locker Rails install on your truck in minutes with easy no drill installation via stake pockets. Made from durable 2 +" NeveRust stainless steel, the Boss Locker will add a distinctly custom look to your truck. Putco Boss Locker Side Rails solid die cast construction allows for 500lbs. of tie down strength. The oversized Boss Locker fits all applications of the traditional Locker Side Rails.