4-40 x 3/16 x 1/16 Small Pattern Hex Machine Screw Nut Black Oxide and Oil 8-32 064-105 It has a round head

It has a round head with a square neck and is threaded along its entire length

The bolt has a fully threaded shank for maximum holding power and a hex head for easy installation

The hex head design allows for easy installation with a wrench or socket

They are easy to install and can be used with a variety of nuts and washers

4-40 x 3/16 x 1/16 Small Pattern Hex Machine Screw Nut Black Oxide and Oil 8-32 064-105 It has a round headThese 4 40 x 3 16 x 1 16 Small Pattern Hex Machine Screw Nuts are made of steel and have a black oxide and oil finish. They are designed to be used with 4 40 machine screws and have a small pattern hex head. These nuts are perfect for use in a variety of applications, including automotive, construction, and manufacturing. They are also corrosion resistant, making them ideal for use in outdoor applications.