New 1 Inch Pioneer Sealife ReefMaster Base Stay Screw for SeaLife Underwater Cameras and Flashes (SL-96022) Don't get caught on your next live aboard dive trip without having an extra Base Stay Screw onboard!!! For connecting additional strobes and accessories to all SeaLife U/W cameras such as the SL320, SL321, DC500, DC600, DC800, DC1000, DC1200 & the DC1400!!!