Yamamoto Sound Craft High rigidity bolt & washer set for cartridge mounting

This is a set of high rigidity screws and cartridges for weight balance adjustment.
Commonly used aluminum screws have low strength and disadvantages for sound quality. Since the cartridge picks up the unevenness of the record board as a music signal, the influence of the vibration appears greatly. Of course, the effect on the sound quality of the head shell is large, but the screw that fixes the cartridge also greatly affects the sound. It has the effect of improving sound quality by stopping the cartridge using high strength screws.
Two types of bolts are available: titanium alloy and brass. Two nuts are set with several different lengths. The attached nut is 4mm smaller and can be used for the groove part of the cartridge body. WA-1 is a brass non-magnetic underground treatment 24-gold-plated washer that can be used for the purpose of increasing weight when installing analog cartridges on the headshell. Use a long screw to adjust the weight including the head shell and cartridge in combination with the WA-1. For fine-tuning, adjusting the number of nuts and the length of the bolts makes it possible to unify the weight of the head shell, making it easier to use. If the total weight of the cartridge and the head shell is unified, the needle pressure adjustment is no longer necessary at the time of the carlidge change, and cartridge replacement is easier.

WA-1 is a set of 10 washers made of brass with 24 gold plated non-magnetic underground processing.
BT-1 material is titanium alloy lightweight high rigidity screw. BT-2 is a non-magnetic underground treatment 24 gold plated brass screw.

WA-1

Format	Large brass washer for M3,M2.6
Dimensions	Diameter 11mm, inner diameter 3.1mm, thickness 2mm
Weight	1.47g/1pcs

BT-1

Format	Bolt nuts for cartridge mounting
Set contents	Plus Head Titanium Bolt M2.6 Length 6mm, 8mm, 12mm, 15mm Brass gold plated nut, 4mm opposite side type 2 pieces
Material	Titanium alloy bolt fabric finish (light black color)· brass gold plated nut

BT-2

Format	Bolt nuts for cartridge mounting
Set contents	M2.6 bolt length 6, 8, 12, 15, 18, 20, 25mm each 2 M2.6 4mm opposite nut 10 pieces
Material	Brass, non-magnetic underground treatment, 24 gold plated finish