Mounting clamp

Calculation a di dimensions a one construction clamp

Please indicate dimensions inna millimeters

D - Pipe diameter
B - Stud diameter
H - length a threaded parts
Z - Space

Buying construction fasteners a nuh problem now. Dem have fasteners fi sale fi any occasion. Clamps fi fasten pipes, clamps fi repairs a various sizes an purposes. But sometimes yuh mait no have a fastener store nearby an yuh need fi mek a clamp yuhself.
Di clamp consist a one threaded rod wid nuts an a pressure plate. Di pin ben fi fit di diameter a di pipe an di metal clamp ready. Two holes dem drill inna di pressure plate. Dem put it pan a pin an press it gens di pipe like a clamp. Often use inna di construction a fences, weh crossbars dem attach to di plate.