#4-40 x 1/4" Socket Head Cap Screw Fully Threaded Coarse Alloy Steel Nylon-Patch Thermal Black Oxide, 1000 pcs/Pack Package:1000 Their six-sided design ensures a

Their six-sided design ensures a secure connection between components

Thread Size: M6-1

Flange nylon insert lock nuts combine a flange base with a nylon insert to prevent loosening due to vibration

SAE flat washers are standard flat washers designed to provide a smooth bearing surface and distribute load under bolts

Thread Size: 1/2-12

#4-40 x 1/4" Socket Head Cap Screw Fully Threaded Coarse Alloy Steel Nylon-Patch Thermal Black Oxide, 1000 pcs/Pack Package:1000 Their six-sided design ensures aHigh quality Socket Head Cap Screw, perfect for various applications. Thread Size: #4 40 Length: 1 4 Material: Alloy Steel Finish: Nylon Patch Thermal Black Oxide Thread Type: Fully Drive Style: Socket System Of Measurement: Inch