NOT KNOWN FACTUAL STATEMENTS ABOUT TYPES OF SCREW HEADS CHART

A variation in the TA may be the tri-issue-three, which has rounded edges to beat the TA’s significantly less- safe compatibility with hex drives. Measurements with the tri-angle travel are in sizes preceded by a TA prefix.Tri-position motorists attribute a blade with three points that produce a Y-form head about the suggestion of the driving for