Nagasawa Seisakusho "Annealed Silver Neck Screw No. 1 Silver Solid" for Yanagisawa/Selmer Compatible with Supreme Signature Due to the various conditions of neck joints, the design emphasizes ease of tightening, and the spoon-like shape subtly affects the sound. Because it is made of annealed silver, over-tightening may strip the threads or twist the knob, so be careful not to overtighten. Due to the annealing (soft state), the sound and vibrations from daily practice gradually temper the annealed screw. Ultimately, like the instrument itself, the player's habits and technique will determine the final finish of the annealed screw. The annealed screw is very soft and comfortable to play. The boisterous tones of the low register also resonate richly and deeply. In the mid and high registers, a beautiful sound of solid silver is obtained as well. Eventually, with a matured solid silver screw, responsiveness is added to the above. 950 silver is a material that does not age-harden, and it does not harden unless it is subjected to vibration or processing. 925 silver is a material that age-hardens, and it hardens over time even without any processing. Product Specifications ※Material: 950 silver (material that does not age-harden) Annealed state ※Compatible models: Yanagisawa/Selmer ★Selmer models without a lyre socket, such as the Supreme Signature, can also be fitted, but the screw will protrude from the lyre socket. ※Screw standard: M4-0.75 ※Surface finish: Solid silver At Nagasawa Seisakusho, The maker himself has won awards in international competitions, and based on that experience, he has repeatedly tested and prototyped, and is designing and manufacturing solid silver wind instrument boost items in his workshop in Hatoyama-machi, Hiki-gun, Saitama Prefecture. Surface finishes include solid silver, GP, PGP, and PtP. We manufacture a wide range of products in solid silver. Please feel free to contact us. We have our own website. #NagasawaSeisakusho #NeckScrew #Selmer #Yanagisawa #Sax