![Allen Head Screws for [SD] Coupling.](http://the-green-guard.com/cdn/shop/files/20250222_201228_{width}x.jpg?v=1741134775)
Allen Head Screws for [SD] Coupling.
(4) M4 x 12mm Allen Head Screws for [SD] Model - Coupling to Swing Arm Connection.
(4) M4 x 12mm Allen Head Screws for [SD] Model - Coupling to Swing Arm Connection.