Salsa battery mounting hardware. Salsa Battery Mounting Hardware for Tributary 1.0 aluminum frames and all Notch aluminum frames with the Bosch BES 3 BDU smart system Includes upper and lower battery mounting frame hardware, M5 x 0.8 12L T25 socket-head screws, M5 x 0.8 10L T25 socket-head screws, and upper mount washers Fits size MD-XL Tributary 1.0 aluminum frames with Bosch BES 3 BDU smart system Fits Notch 1.0 and 2.0 aluminum frames with Bosch BES 3 BDU smart system