- Top washer has the following features:
- The Working Load Limit and Recommended Torque value are permanently stamped into each washer.
- Washer is color coded for easy identification: Red - UNC thread.
- Individually Proof Tested to 2-1/2 times Working Load Limit.
- Bolt specification is a Grade 8 Alloy socket head cap screw to ASTM A 574. All threads listed are UNC.
- BOLT SIZE IDENTIFICATION: The size of the bolt will be stated as in the drawing below. Illustration shows meaning of each dimension given.
- Frame 2 and larger are RFID EQUIPPED.
- Also available in Stainless Steel.
HR-125 UNC Threads
* Ultimate Load is 5 times the Working Load Limit.
** Ultimate Load is 4.5 times the Working Load Limit for 7000# Hoist Ring when tested in 90 degree orientation.
† Long Bolts are designed to be used with soft metal (i.e., aluminum) work piece. While the long bolts may also be used with ferrous metal (i.e.,steel and iron) work piece, short bolts are designed for ferrous work pieces only.
‡ Bolt specification is a Grade 8 Alloy socket head cap screw to ASTM A 574.
# Hex head bolt used on Frame 8 (100,000 lb.) Hoist Ring.