G-603-S Hinged Lead Block - Sheave Diameter 6 in Clearance Compatible With: Overhead support structures

Compatible With: Overhead support structures including crane runways

Rigging assemblies

5/16" Grade 100 Hammerlock (also known as a coupling link or connecting link) is a high-strength rigging component used to connect chain to master links

Threaded body construction – Allows precise tension control

Heat-treated components

G-603-S Hinged Lead Block - Sheave Diameter 6 in Clearance Compatible With: Overhead support structuresProduct Description: The Crosby S 603S Hinged Lead Blocks are engineered for wire rope guiding, directional pulling, and lead line applications requiring dependable sheave performance, rugged durability, and smooth cable handling. Designed with a hinged side plate for easy wire rope insertion, these heavy duty lead blocks are ideal for oilfield, utility, marine, construction, and industrial rigging operations where temporary or permanent rope