Oyaide SCR-L High quality M2.5 headshell screw/nut/washer set (Longer Lengths Set)

Carbon Graphite Nylon Washer

The audio industry’s first new material “carbon graphite nylon washer” is the key component of “SCR-L” and “SCR-S”.

This washer combines the characteristics of both metal and resin, i.e., moderate slipperiness and cushioning, to reduce screw spinning and enable tighter fastening. This increases the adhesion between the cartridge and headshell and eliminates cartridge rattling, which can cause deterioration of sound quality.

The washer has an outer diameter of 4.7 mm, which is larger than the outer diameter of the screw head/nut, thereby expanding the contact area with the cartridge / headshell. By distributing the screw seating pressure, deformation and sinking around the cartridge are mitigated, and the screw is less likely to loosen.

wo Lineups: “SCR-L” with Screw Stem Lengths of 12/14/17mm Set and “SCR-S” with Screw Stem Lengths of 6/8/10mm Set

Two stem length sets are available: “SCR-S” with screw stem lengths of 6/8/10mm set and “SCR-L” with screw stem lengths of 12/14/17mm set. You can choose the right one for your cartridge / headshell without wasting your money.

【SCR-L】

【SCR-S】

＜When in Use＞

• Please check the screw length of the product you have before purchasing.
• The length indicated on the screw is the length under the neck (excluding the screw head).
• The washer can be installed on either side of the screw/nut.
• Please provide your own precision screwdriver (flat-blade screwdriver).
• Do not overtighten the nut as it may be damaged.
• When installing the nut, insert the screw from the tapered hole side toward the inside.
• Cartridges (e.g., ortofon) with M2.5 female screws (screw holes) can be installed.

🔧 Key Features

✅ Extended Screw Lengths

• Designed for:

  • Thick-bodied cartridges (e.g., Koetsu, Shelter, My Sonic Lab)

  • Cartridge spacers (e.g., Oyaide MCS-CF)

  • Exotic or thick headshells

• Eliminates the struggle of short, barely-gripping screws in high-end setups

✅ Non-Magnetic Stainless Steel

• Avoids magnetic interference near sensitive phono cartridges

• High structural rigidity = better vibration damping

• Threading is smooth and precise, making setup frustration-free

✅ Soft Isolation Washers

• Prevent over-tightening

• Help damp high-frequency vibration transmission from headshell to cartridge

✅ Optimized for Vibration Control

• Improves mechanical coupling while reducing unwanted resonance

• A small but sonically significant upgrade for analog purists

🎧 Use Case Scenarios

• Mounting with carbon fiber cartridge spacers (e.g., Oyaide MCS-CF)

• Using headshells with curved or thick bases

• Audiophile installs where precision, torque consistency, and vibration control matter

🛠️ Pro Installation Tips:

• Use equal torque on both screws to avoid cartridge tilt.

• Don’t overtighten — allow washers to lightly compress.

• After mounting, re-check azimuth, overhang, and VTA.

• Combine with a digital stylus force gauge for complete setup accuracy.

Specs