This is the 4-40x1-1/4" Bolt Set with Lock Nuts from Du-Bro.
FEATURES: High strength steel construction. Round head screws/bolts with a slotted drive insert. Plain Silver 4-40 lock nuts with Burgundy nylon inserts. Plain Silver flat washers (.123" ID).
INCLUDES: (4) Bolts (4) Flat Washers (4) Lock Washers
SPECS: Thread Size: 4-40 Screw/Bolt Length: 1-1/4"