This Is Great Planes' 4-40x1 Lock Nut Bolt Set (4 Sets).
Metal construction with zinc plating to prevent rust from oxidizing on parts.
Lock nuts have a White nylon insert
High round cap head screws with hexagon socket drive insert
Plain black steel hex wrench
Comes in a Parts-Pak clear plastic box with resealable lid
One year quality guarantee
Includes: (4) Lock Nuts
4) Socket Head Screws
4) Flat Washers
1) Hex Wrench