Mounting Bolts/Nuts 4-40 (4) (DUB127)

4-40 x 1-1/4 inch engine mounting hardware kit, including four bolts, four flat washers, four lock washers, and four blind nuts, designed for securing engines to mounting surfaces in hobby builds.

This complete set provides a ready-to-use mounting solution, with washers to distribute load, lock washers to resist vibration, and blind nuts for a durable captive fastening system that makes installation and servicing straightforward.