4-40 x 1/4 x 3/32 Standard Pattern Hex Machine Screw Nut Black Zinc NFG It has a hex head

It has a hex head and a 3/4-inch length

This 1 1/2-6 x 4 Hex Cap Screw Grade 5 Zinc is a high-strength fastener designed for use in a variety of applications

It has a diameter of 3/8 inches and a length of 1 1/4 inches

The 3 1/4-inch length provides ample reach for a variety of applications

They are also known as prevailing torque nuts or lock nuts

4-40 x 1/4 x 3/32 Standard Pattern Hex Machine Screw Nut Black Zinc NFG It has a hex headThis 4 40 x 1 4 x 3 32 Standard Pattern Hex Machine Screw Nut is made of durable steel and finished with a black zinc coating for corrosion resistance. It has a standard pattern hex shape for easy tightening with a wrench or socket. The nut is designed to be used with 4 40 machine screws and is commonly used in a variety of applications, including automotive, construction, and manufacturing.