Aerospace Series - Holes and traps for T-head bolts - Design standard
|Publication Date:||1 July 1995|
|ICS Code (Bolts, screws, studs):||49.030.20|
Specifies a procedure for calculating traps for T-head bolts. This provides standard traps which prevent the bolts from rotating during tightening and prevent incorrect mating. The application of T-head bolts may cause flange deformations (notches). Where only small notches are acceptable due to high notch sensitivity of the trap surface, close tolerance bolts and their associated holes for rotating parts shall be used in static parts.