Turnbuckle - StB - Stainless body with bronze thread, Stainless Terminals, 1/4", Swage terminal/Eye, For ø4 mm wire, Hole ø6,5 mm ø29 mm Clevis Pin The block is designed with

The block is designed with lightweight ø5 mm Delrin ball bearings and features a composite sheave

Fasteners: 6xM8

Keelboat mast heels and Single-Line reef systems

Easy to install on deck with included hardware

The Seldén BBB20 Double Ball Bearing Block is designed for trim lines on dinghies and keelboats

Turnbuckle - StB - Stainless body with bronze thread, Stainless Terminals, 1/4", Swage terminal/Eye, For ø4 mm wire, Hole ø6,5 mm ø29 mm Clevis Pin The block is designed withStB Turnbuckles Stainless & Bronze With its elegant and functional design, this turnbuckle is the natural choice for both new builds and rigging upgrades. The body and terminals are made of acid resistant stainless steel AISI 316, ensuring maximum durability in marine environments. A bronze thread insert reduces friction, providing smooth adjustment and long service life. The round body features a distinctive wrench grip for a firm hold with an