4-40 x 1/2 Phillips Fillister Machine Screw Fully Threaded 18-8 Stainless Steel 6-18 1/4-20-2B Cage Nuts Zinc are

1/4-20-2B Cage Nuts Zinc are designed to provide a secure and reliable mounting solution for rack-mounted equipment

this wing nut is compatible with various bolts and threaded components

This 1-1/8-12 Hex Jam Nut

and it is also automation style

It is non-ribbed and has a countersunk head

4-40 x 1/2 Phillips Fillister Machine Screw Fully Threaded 18-8 Stainless Steel 6-18 1/4-20-2B Cage Nuts Zinc areThese 4 40 x 1 2" Phillips Fillister Machine Screws are made of durable 18 8 stainless steel, providing excellent corrosion resistance. Their fully threaded design allows for a strong and secure hold in various applications. The Phillips drive style ensures easy installation and removal using a standard Phillips screwdriver. These screws are ideal for use in marine, automotive, and other demanding environments where corrosion resistance is crucial.