Hooks Listings National 500 Ton HA500 Hook – Used By admin 8 years ago National 500 Ton HA500 Hook. This one is really new surplus but it has been sitting for 7 yrs. Mfg by NOV 2009 Continue Reading Previous 200 Ton Gardner Denver Rotary Swivel – UsedNext 13-5/8” 5M Shaffer Spherical Annular Bolted Cover Type – Rebuilt