connection_rivet_spacing
3″ O.C. TWO RIVETS AT EA. POINT CSK OUTSIDE3 in
Printed local annotation; registration and applicability remain unaccepted. Review correction review-correction-20261013m-struct-gap-20261012k-1321-m035: Same W407 light-court section fastener/fill-point line explicitly prints 3′-0″ O.C.; prior transcription recorded 3 in. Crop preserves the foot mark, zero-inch component and two-rivet instruction. This is a same-image notation/unit correction candidate only; prior reading retained and no historical revision or physical geometry selected.
Drawing notation: 3″ O.C. TWO RIVETS AT EA. POINT CSK OUTSIDE
Printed local annotation; registration and applicability remain unaccepted.