公开(公告)号：US20250084884A1

公开(公告)日：2025-03-13

申请号：US18580242

申请日：2022-08-16

Applicant: HOWMET AEROSPACE INC.

Inventor： Arnaud BRUNET

IPC: F16B19/05

Abstract: The present disclosure relates to fastening collars, multi-piece fasteners, and methods for fastening. A fastening collar comprises a first collar end, a second collar end, and an elongate portion intermediate the first collar end and the second collar end and defining a longitudinal axis of the fastening collar. The elongate portion comprises an external collar surface, an inner collar surface defining a collar cavity, and a groove on at least one of the external collar surface and inner collar surface. The groove extends a first distance along the longitudinal axis.