Phono Cartridge Mounting Bolts and Nuts Brass

Cartridge to Headshell Mounting Brass Machine Screw Set (12BA x 6.35 mm)

Description
This precision brass machine screw and nut set is specially engineered for mounting phono cartridges to record player headshells and turntable tonearms. Manufactured from solid brass, these fasteners are non-magnetic, ensuring they will not attract or interfere with sensitive phono cartridge coils and internal magnet assemblies. Featuring a natural brass finish, slotted round head profile, and fully threaded shafts, this hardware delivers reliable clamping while preserving authentic vintage aesthetics. Supplied as a complete pair, this set is ideal for vintage turntable restorations, cartridge upgrades, or fine precision mechanical applications requiring non-ferrous 12BA hardware.

Key Features:

• Non-Magnetic Solid Brass: Solid brass material prevents magnetic interference with delicate phono cartridge coils and magnet assemblies.
• 12BA Thread Standard: Precision 12BA thread size suited for specialised turntable headshell mounting slots and vintage cartridge bodies.
• Slotted Round Head: Low-profile round head slotted screw design for easy alignment using standard flathead precision screwdrivers.
• Fully Threaded Shafts: Provides continuous thread engagement along the entire 6.35 mm shaft length.
• Complete Hardware Pair: Includes two 12BA slotted screws and two matching 12BA hex nuts.

Technical Specifications:

• Thread Size: 12BA (approx. 1.3 mm diameter with a 0.28 mm pitch)
• Screw Shaft Length: 6.35 mm (approx. 0.25 inches)
• Head Style: Slotted round / dome head
• Nut Type: Matching 12BA hex nut
• Material: Solid brass
• Finish: Natural brass
• Package Quantity: 1 pair (2x 12BA screws, 2x 12BA hex nuts)

Suggested Uses & Applications:

• Securing phono cartridges to turntable headshells and vintage tonearm mounts.
• Precision electronic, instrument, or fine mechanical assemblies requiring small non-magnetic brass fasteners.

Installation & Handling Tips:

• Gentle Tightening Caution: Brass is a soft metal compared to steel or stainless steel. Tighten hex nuts carefully using appropriate miniature screwdrivers and tools to avoid stripping threads or over-compressing headshell materials.
• Stylus Safety: Keep protective stylus guards in place over the phono cartridge needle during installation to prevent accidental damage while positioning hardware.