Material:body zinc alloy ;nail carbon steel .
Hammer Drive Anchor is a fast ,easy-to-use expansion anchor made of special Zinc Alloy. The Nailing design eliminates the necessity for holes-potting,develops substantial holding power,makes the bottom of anchor expanded and the fixture tightly locked in place.
The test values listed were obtained using 200-250kgs/cm2 concrete(no aggregate)
A safe working load should not exceed 25%of stated-value.