38mm Aluminum Beefy Swivel Ratchet Sailing Block 360 Degree Swivel Fits 3/8 Inch Line SWL 540 Lbs Breaking Strength 1300 Lbs Heavy-Duty 6061T6 Anodized Rigging Block for Sails and Winches

Single 38mm Aluminum Swivel Ratchet Block with 360° Swivel
✔️ 38mm sheave, 3/8 in line, SWL 540 lbs, BS 1300 lbs

The 38mm single ratchet swivel block is a high-strength rigging accessory, made from 6061T6 aluminum with a thick anodized coating for salt and air exposure. It’s a go-to piece for sails and winches, offering either fixed 0°/90° or 360° swivel options to suit your rigging setup. Delrin ball bearings ensure smooth operation, while 316 marine-grade stainless steel hardware resists rust.

✅ SWL 540 lbs (250 kg)
✅ Breaking load 1300 lbs (600 kg)
✅ Sheave diameter 38 mm; max line diameter 10 mm (3/8”)
✅ Shackle pin 13.2 mm; 6 mm diameter
✅ 6061T6 aluminum with thick anodized coating
✅ 316 marine-grade stainless steel hardware

💡 What is a handy 38mm aluminum swivel ratchet block used for in sailing?

Designed to manage lines on sails and rigging with smooth operation and secure control. - guides mainsheet, jib sheet, and control lines with reduced friction
- helps prevent line wear by keeping lines aligned and supported
- offers 360° swivel plus fixed 0°/90° options for flexible setup✝️