Spinlock Symmetric Sheave Box Ø38 mm

Designed to optimize onboard line handling, the Spinlock Symmetric Sheave Box Ø38 mm is ideal for efficient and discreet textile-mounted setups. Its compact, lightweight design fits easily into tight spaces while maintaining excellent load alignment. The symmetrical axle ensures stable, balanced mounting — perfect for multiple line redirects.

This modern deck hardware solution is ideal for routing halyards, reefing lines, or control lines, while minimizing rope wear. Available in five versions, from 2 to 6 sheaves, to suit your rigging configuration.

Available in 5 versions:

• ST38/2 – 2 symmetric sheaves

• ST38/3 – 3 symmetric sheaves

• ST38/4 – 4 symmetric sheaves

• ST38/5 – 5 symmetric sheaves

• ST38/6 – 6 symmetric sheaves

Technical Specifications – Spinlock Symmetric Sheave Box Ø38 mm

• Model: ST38/2 to ST38/6

• Sheave type: Ø38 mm

• Structure: High-strength composite housing

• Mounting: Textile loop

• Use: Line redirects, reefing lines, control lines

• Fixing: Central symmetrical axle

• Applications: Cruising and racing sailboats

• Manufacturer: Spinlock