The hole is to be punched through an unequal angle 64mm x76 mm x 6mm (Electrical substation structure being maintained) .
We think the dimension refers to the bolt, namely:
5/8" (diameter) x 29/16" (length) - 1/8" (Pitch?) and that a generic tolerance on the hole is applied.
Does this make...
We need to manufacture a structural component, but we do not understand the imperial hole dimensions given on the drawing:(we went metric in South Africa in the 1960's)
5/8"x29/16"-1/8"
We think it may describe the bolt and not the hole, but are unsure what it means.
Can anybody help?