Part No. 306 Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. Sheave (mm)38 mm Sheave (in)1 1/2 in Weight (g)92 g Weight (oz)3.25 oz Maximum wire (in)1/8 in Maximum wire (mm)3 mm Maximum line (mm)5 mm Maximum line (in)3/16 in Fasteners (mm)5 RH mm Fasteners (in)#10 RH in Mounting hole spacing (mm)75 mm Mounting hole spacing (in)2 15/16 in Cutout (mm)13 x 59 mm Cutout (in)17/32 x 2 5/16 in Maximum working load (kg)680 kg Maximum working load (lb)1500 lb Breaking load (kg)1361 kg Breaking load (lb)3000 lb

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