This Is Great Planes' 4-40x1¼" Lock Nut Bolt Set (4 Sets).
FEATURES: Metal construction with zinc plating to prevent rust from oxidizing
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
SPECS: Thread Size: 4-40
Screw Length: 1¼"
BOX DIMENSIONS: 2.00" W. X .50" H. X 3.75" L.
BOX WEIGHT: .03 LBS.