Yamamoto Acoustic Crafts BT-2 Brass Bolt Set for Cartridge Mounting

The BT-2 is a set of brass bolts and nuts for use with aluminum screws, which are generally used due to their low strength and many disadvantages in terms of sound quality. The set includes two bolts of each of seven different lengths and ten nuts of 4 mm on each side. These longer screws can be used to make the separately releasedWA-1which is sold separately, to adjust the weight of the headshell and cartridge included. For fine adjustment, adjusting the number of nuts and length of bolts makes it possible to unify the weight of the headshell section and makes it easier to use. The nuts included with the BT-2 are small (4 mm on each side) and can be used in the grooves of the cartridge body without difficulty. The weight of each component is shown below for reference when adjusting the weight.