4.2 mm x 12.7 mm Phillips Truss Head Screw

When assembling or repairing audio equipment, the smallest components often make the biggest difference to long-term reliability. These Phillips truss head screws, measuring 4.2 mm in diameter and 12.7 mm in length, offer a dependable fastening solution for a wide range of electronic and audio applications. Their robust construction ensures that connections remain secure, even in equipment subject to vibration or frequent handling.

Ideal for securing speaker terminals, mounting circuit boards, or fixing chassis panels, these screws are particularly well-suited to audio builds where a stable, rattle-free assembly is essential. The truss head profile provides a broad bearing surface, distributing clamping force evenly to protect delicate components from damage. Whether you are repairing vintage amplifiers, constructing custom loudspeakers, or maintaining professional studio gear, these screws deliver consistent performance.

Technically, each screw features a cross-drive Phillips recess that offers excellent bit engagement, reducing the risk of cam-out during tightening. The 4.2 mm thread diameter provides a strong hold in pre-tapped holes or plastic bosses, while the 12.7 mm length is versatile enough for most standard mounting depths. The truss head design also allows for a lower profile than pan or round heads, making it ideal for confined spaces. Supplied individually, this screw is a practical addition to any technician’s fastener kit, ensuring you always have the right part for the job.