Home / Blocks & Cleats / 25mm Blocks / 25mm Plain Bearing Plastic Sheave Blocks / 00.01 25mm Bolt Down Block 00.01 25mm Bolt Down Block £7.00 £5.83 (ex. VAT) 25mm plain bearing with plastic sheave 500KG BL Information The 25mm plain bearing block range is one of Sea Sure's oldest and best selling ranges. The range uses marine grade stainless steel side plates and rivets with an arnite (plastic) sheave which is incredibly hard wearing and light.This range could be used to create purchase systems for lifting, garage door mechanisms, storage solutions etc. Fixing Holes 5mm Dia Max Rope 8mm Breaking Load 500kg