Apex Campbell Professional Series Ratchet Binders 3/8"Turnbuckle style ratchet binders offer all steel construction, drop forged steel components, acme threaded screws, rust proofed, double acting, spring loaded pawls offering infinite adjustment. Made to bind difficult loads such as industrial machinery, steel erection, etc. Special features include: Over sized eyebolts and steel barrels provide extra strength to support loads. Drop forged high quality steel used for handles, barrels, eyebolts, gears