公开(公告)号：US20240418197A1

公开(公告)日：2024-12-19

申请号：US18703656

申请日：2022-11-28

Applicant: HOWMET AEROSPACE INC.

Inventor： James L. WOLLARD, Jr.

IPC: F16B19/05

Abstract: Multi-piece fasteners and methods of fastening are provided. The multi-piece fastener comprises a fastening collar and a pin. The fastening collar comprises an inner collar surface defining a collar cavity, an outer collar surface, a coating on the outer collar surface, and a lubrication layer intermediate the coating and the outer collar surface. The coating comprises a resin and a metal pigment. The pin is configured to be at least partially received by the collar cavity. The pin comprises a first pin end, a second pin end, and a shank extending intermediate the first pin end and the second pin end. The fastening collar is configured to be deformed onto the shank by forcibly contacting the outer collar surface of the fastening collar. Forcibly contacting the outer collar surface at least partially removes the coating on the outer collar surface and indicates installation of the multi-piece fastener.