#4 NAS620 Flat Washer 300 Series Stainless Steel DFAR KPM188 The plain finish provides a

The plain finish provides a basic appearance and is suitable for general-purpose use

They have a Phillips flat head and a fully threaded shaft

while the slot drive accommodates both flathead and Phillips screwdrivers

6-20 x 3/8 Square Pan Self Tapping Screw Type B Fully Threaded Zinc:

#4 NAS620 Flat Washer 300 Series Stainless Steel DFAR KPM188 The plain finish provides a#4 NAS620 Flat Washer 300 Series Stainless Steel DFAR is a type of washer that is used to distribute the load of a screw or bolt over a larger surface area. It is made of 300 series stainless steel, which is a corrosion resistant material. This washer meets the requirements of the Defense Federal Acquisition Regulation Supplement (DFARS), which ensures that it is of high quality and meets the standards of the US Department of Defense. It is commonly