4 soportes aisladores de vibraciones de goma (1-1/4 de diámetro x 3/4) con pernos de 5/16-18 x 11/16"

(1-1/4" Dia x 3/4" thick) Rubber Vibration Isolator Mounts with 5/16-18 x 11/16" Studs NOS. These have 5/16-18 threads with 11/16" long studs on both ends as shown.

eBay