TinnerFlow™2nd YearHangers, Supports & AnchorsCheck first
Do not force a nut and washer tight against a sloped face. Square the bearing surface or use an approved swivel/angled support so the rod hangs plumb.
A hanger rod wants to pull straight down. If the anchor seat is on a sloped beam face, tightening the hardware can bend the rod and side-load the anchor.
Check whether the support can be moved to a flat substrate. If not, the usual fix is an approved bevel washer, shim plate, swivel insert, or engineered bracket that keeps the load vertical.
Use this as training guidance. Foreman direction, approved drawings, project specs, manufacturer instructions, employer safety policy, and AHJ/code requirements always control the final answer.