Beefy Single Swivel Aluminum Sailing Block With 57 Mm Sheave, 7/16 In Max Line, 12 Mm, SWL 1100 Lbs, Breaking Load 3500 Lbs, Swivel Head 0 Degree 90 Degree Or 360 Degree, 6061T6 Aluminum Alloy With Delrin Bearings

57mm Single Swivel Sailing Block with Delrin Bearings
✔️ 57mm 12mm rope capacity, SWL 1100 lb, 0°/90°/360° swivel

Designed for marine rigging, this 57mm single-swivel block is built for high strength and smooth line handling. It’s ideal for main sheets, jib sheets, control lines, and vang setups in sailing yachts and small craft.

✅ SWL 1100 lbs (500 kg)
✅ Breaking Load 3500 lbs (1600 kg)
✅ 57 mm sheave, 12 mm line capacity, Delrin bearings
✅ 6061T6 aluminum with twice-thick anodized coating
✅ 0°, 90°, or 360° swivel head

💡 What is a sailing block used for in boat rigging and line management?

This handy rigging piece keeps lines running smoothly and lets you route control lines with flexibility.

- For mains sheets, jib sheets, vangs, and control lines - Helps redirect loads with multiple swivel options - Uses Delrin bearings for low friction and long life - Built with corrosion-resistant 316 stainless hardware ✝️