Genuine DeWalt carriage / adjusting bolt — part #098128-85 — designed to restore the adjusting mechanism on compatible DeWalt circular saws. This original DeWalt replacement is a small, durable carriage-style bolt (left‑hand thread on affected models) sold individually and listed among DeWalt spare parts.

Key details: roughly 14.0 × 12.7 × 26.7 mm (converted from the manufacturer listing), hex / carriage head style with a short shank and left‑hand thread where used for blade / rail adjustment. Example fitment includes several DeWalt circular saw models such as DCS565P1, DCS565B, DCS373P2 / DCS373B, DCS391B / DCS391P1, DCS512B / DCS512J1 and DCS566B (also appears in parts lists for older DC300 / DC310 / DC390 ). Check your model parts diagram to confirm location before installing.

Use it to replace a worn or stripped carriage bolt that controls angle / rail adjustment and get your saw back to accurate cutting — a straightforward repair using genuine DeWalt parts that belong in any collection of handy parts for power tools.