Harken 38mm High-Strength Wire Cheek Block with high-load composite bearings to carry axial loads.

Harken's Lightweight, low-friction blocks with high-load composite bearings carry wire halyards and control line cascades. Side-load balls reduce friction from twists or unfair leads on 304-311. 300-303 has thrust washers. Blocks open to allow passage of swaged wire. Hard Lube-anodized sheave for strength and corrosion resistance. Cheek blocks include fasteners.

• Impregnated Hardkote anodized aluminum bearings
• Side-load carbon-black Delrin® washers
• Use for wire halyards, vangs, control lines
• Polished stainless steel strap type fixed shackle
• Sheave Diameter: 1 1/2" (38 mm)
• Max. Wire Diameter: 1/8" (3 mm)
• Max. Working Load (MWL): 1500 lb. (680 kg)
• Breaking Load: 3000 lb. (1361 kg)
• Weight: 3.25 oz. (92 g)