![Schaefer Single Aluminum Block – 51mm Sheave [504-05]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/schaefer-single-aluminum-block-51mm-sheave-504-05.webp)
Description
Single Aluminum Block – 51mm SheaveSingle block with anodized aluminum cheeks. Delrin sheave ensures smooth operation with high safe working load. Swivel head may be locked in place to avoid twist.Specifications:Sheave Dia. 2″ (51mm)Thickness 15/16″ (24mm)
![BoatLIFE LifeSeal Sealant Tube 2.8 FL. Oz – Clear [1160]](https://www.bestmarinewiring.com/wp-content/uploads/2026/08/boatlife-lifeseal-sealant-tube-2-8-fl-oz-clear-1160.webp)
