All SHUR-LOC® hooks have the following features: 
• Forged Alloy Steel - Quenched and Tempered.
• Recessed trigger design is flush with the hook body, protecting the trigger from potential damage.
• Easy to operate with enlarged thumb access.
• Positive Lock Latch is Self-Locking when hook is loaded.
• The SHUR-LOC® hook, if properly installed and locked, can be used for personnel lifting applications and meets the intent of OSHA Rule 1926.550 (g) (4) (iv) (B).
Eye Style incorporates these added features:
• Individually Proof Tested to 2-1/2 times the Working Load Limit with certification.
• S-1316 meets the performance requirements of EN1677-3:2001
• Fatigue rated at 1-1/2 times the Working Load Limit at 20,000 cycles.
• 25% stronger than Grade 80.
• Suitable for use with Grade 100 and Grade 80 chain.
• Designed with "Engineered Flat" to connect to S-1325 chain coupler



