- Alloy Steel Quenched and Tempered.
- Individually proof tested to values shown, with certification.
- Proof tested with fixture sized to prevent localized point loading per ASTM A952.
- Proof test certification shipped with each link.
- Sizes from 1/2" to 2" are drop forged and have a Product Identification Code (PIC) for material traceability, along with the size and the name Crosby and USA in raised lettering.