Original MTD flat‑head, hex‑socket screw (part number 710‑1054) — a countersunk screw used to secure blades and flails on MTD chipper/shredder equipment. The screw is specified as 5/16‑24 UNC × 1.00 in (≈7.94 mm major diameter × 25.4 mm length; thread pitch ≈1.06 mm) with a hex (Allen) drive so the head sits flush in the blade mounting surface. Designed for original MTD machines and compatible with a wide range of MTD/Troy‑Bilt/Craftsman chipper‑shredder models — examples include model's such as 103A, 203/203B, 242‑645‑000 / 242A645‑000, CS4265, CS4325 and similar chipper/shredder units. This genuine MTD replacement part is a direct fit when your blade mounting screw is stripped, lost, or damaged and is listed among MTD spare parts for chippers and shredders.