![Allen Head Screws for [HD2M-B] Coupling.](http://the-green-guard.com/cdn/shop/files/20260111_165424_cropped_7d9ec0da-5f09-44c1-9ac0-46fa2d8555bd_{width}x.jpg?v=1768520655)
Allen Head Screws for [HD2M-B] Coupling.
(4) M4 x 12mm Allen Head Screws & Lock Washers for [HD2M-B] Model - Coupling to Swing Arm Connection.
(4) M4 x 12mm Allen Head Screws & Lock Washers for [HD2M-B] Model - Coupling to Swing Arm Connection.