b"T20 The T20 is a larger shackle designed for mid to large sized boats. They are popularon the America's Cup racing circuit. The T-20 has a breaking strength of 20,000 lbs.Standard bail configurations weigh only 11.9 oz. Ideal for 40 to 70 foot sailboats.SB- Actual SizeLB- Actual SizeCB- Actual SizeSHACKLE A B C D E THICKNESS WEIGHT WORK LOAD BREAKING RECOMMENDEDTYPE in (mm) in (mm) in (mm) in (mm) in (mm) in (mm) oz (gm) lb (kg) STRENGTH lb (kg) APPLICATIONST20 SB 31 32 (24.6) 15 16 (23.8) 15 16 (23.8) 31 32 (24.6) 5 (127) .57 (14.5) 11.9 (338) 10,000 (4,545) 20,000 (9,091) 40-70 BoatsT20 LB 31 32 (24.6) 15 16 (23.8) 13 8 (34.9) 11 2 (38.1) 59 16 (141.3) .57 (14.5) 14.3 (406) 10,000 (4,545) 20,000 (9,091) 40-70 BoatsT20 CB 31 32 (24.6) 15 16 (23.8) 11 16 (27) 7 8 (22.2) 55 8 (143) .57 (14.5) 15.6 (441) 10,000 (4,545) 20,000 (9,091) 40-70 BoatsT30 SB 11 4 (31.8) 11 8 (28.6) 11 8 (28.6) 11 4 (31.8) 63 8 (161.9) .78 (19.8) 26.4 (636) 15,000 (6,818) 30,000 (13,636) 60-80 BoatsT30 LB 11 4 (31.8) 11 8 (28.6) 127 32 (46.8)129 32 (48.4) 73 16 (182.6) .78 (19.8) 29 (824) 15,000 (6,818) 30,000 (13,636) 60-80 Boats6 T30 CB 11 4 (31.8) 11 8 (28.6) 11 4 (31.8) 11 16 (27) 613 16 (173) .78 (19.8) 30.6 (866) 15,000 (6,818) 30,000 (13,636) 60-80 BoatsSB - Standard Bails| LB - Large Bails| CB - Clevis Bails Tylaska Marine Hardware, 800 Flanders Road, Mystic, CT 06355USA| Phone (860) 572-8440| Fax (860) 572-0534| www.Tylaska.com"