Harken 12 mm "D" Shackle 747 The Carbo Ratchamatic® is a

The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase

ball bearings

Breaking load (lb)2380 lb

Long shackles have a similar shape to "D" shackles but are proportionally longer for their width

BL (lb)=300

Harken 12 mm "D" Shackle 747 The Carbo Ratchamatic® is aPart No. 2126 Forged stainless steel shackles are polished to a high luster and are stamped with the screw pin diameter. "D" shackles are the most common type of shackle. They are best suited for aligned attachment points. Shackle pin (mm)12 mm Shackle pin (in)1 2 in Weight (g)190 g Weight (oz)6. 7 oz Maximum working load (kg)3230 kg Maximum working load (lb)7120 lb Breaking load (kg)6460 kg Breaking load (lb)14240 lb