680 Construction Blocks

• Wide Range of product available:
  - Capacity: 5 to 100 tons - Larger model
  available
  - Sheave sizes: 6" to 24" O.D.
  - Wire Line Sizes:  3/8" to 1-1/4"

• Equipped with genuine Crosby® forged steel,  Quenched and Tempered shackles that contain the patented QUIC-CHECK® markings.
• Design Factor 4 to 1.
• Single sheave blocks have thimble dead-end.
  
  
       

           With Shackle

• Manufactured by an ISO 9001 and API Q1  
  Certified facility.
• All 680 Series Blocks are furnished standard
  with Bronze Bushings.
• All 680 blocks 16" and larger, are furnished with McKissick® Roll Forged® Sheaves with 
  flame hardened grooves.
• Sheaves are lubricated through center pin, with 
  a separate lube channel to each sheave.

Options Available:

• Roller bearing sheaves
• Hanger & Bolt Only models available
• Third party testing with certification
• Galvanized finish - Most models

SEE APPLICATION AND WARNING INFORMATION