1/16 x 3/8 MS9245, Extended Prong Chisel Point Cotter Pins T321 Stainless DFAR 1/4-20 NTE while the flange helps to

while the flange helps to distribute the load and prevent the bolt from pulling through the material

It has a hexagonal head for easy tightening with a wrench

10-16 x 2 #8HD Phillips Pan High Low Screw Fully Threaded 18-8 Stainless Steel

These nuts are designed to be used with bolts or screws of the same size and thread pitch

They have a type 18 point and a slotted drive

1/16 x 3/8 MS9245, Extended Prong Chisel Point Cotter Pins T321 Stainless DFAR 1/4-20 NTE while the flange helps to1 16 x 3 8 MS9245, Extended Prong Chisel Point Cotter Pins T321 Stainless DFAR are designed for use in high strength applications where vibration and shock resistance are critical. They are manufactured from T321 stainless steel, which provides excellent corrosion resistance and high strength. The extended prongs provide increased holding power, while the chisel point ensures a secure fit in the hole. These cotter pins meet the requirements of MS9245