Conforming Material Concrete, Masonry and Features: The most common reliable female screw anchor. There are no protrusions on the concrete surface after installation, and it can be used for hex bolts, differentiators, and hanging bolts. CA type W screw chromate processing Product number Thread diameter outer diameter (mm) Total length (mm) Hole length (mm) Hole condition Embedded depth (mm) Maximum pulling strength (kN) Hole diameter Hole depth 28CA W1/4 10.5 30 10 11.0 30 30 16.2 258CA W/5/16 2.0 3 5 14 12.5 35 35 17.7 38CA W3/8 14.0 40 14 14.5 42 40 23.7 48CA W1/2 17.5 50 22 18.0 53 50 40.7 58CA 5/8 2 1.5 60 24 22.0 65 60 44.1 68CA W3/4 25.5 80 30 26.0 87 80 72.0