They have a 1/4-inch across the flats hex head
This 5/16" Machine Screw Washer is made of zinc-plated steel and is designed to be used with 5/16" machine screws
Crafted from durable steel and coated in black phosphate for corrosion resistance
The thermal black finish provides corrosion resistance and a professional appearance
The 4-40 x 1 1/8 Slotted Round Machine Screw is a fully threaded screw made of 18-8 stainless steel
3/16X2-1/2 Medium, Standard Duty Coil Pin Plain Steel And Oil KPRW They have a 1/4-inch across3 16X2 1 2 Medium, Standard Duty Coil Pin Plain Steel And Oil This 3 16" x 2 1 2" medium, standard duty coil pin is made of plain steel and is oil hardened for increased strength and durability. It is designed for use in a variety of applications, including securing and aligning components, and is commonly used in machinery, equipment, and other industrial settings. The plain steel construction provides good corrosion resistance, while the oil