A hardware bolt on a climber has a hex head that protrudes 0.6 inch but is recessed inside a countersunk hole. How should the inspector measure protrusion?
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A
From the surface of the equipment to the top of the bolt head
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B
From the bottom of the countersunk recess to the bolt head
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C
From the ground to the bolt head
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D
Protrusion is not measured when the bolt is recessed