early production number screw started with B-8881 and B 8881, later are 124967marked B-8881-6 and B 8881-6. these screws with the drawing number were used into the 19K serial range
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early production number screw started with B-8881 and B 8881, later are 124967marked B-8881-6 and B 8881-6. these screws with the drawing number were used into the 19K serial range