3/8"-16 x 4" Socket Head Cap Screw Partially Threaded Coarse Alloy Steel Nylon-Patch Thermal Black Oxide, 100 pcs/Pack Package:100 Fender washers have a larger

Fender washers have a larger outer diameter to improve load distribution on thin surfaces

Shoulder Diameter: 3/8"

Shoulder Length: 2

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

to enhance stability

3/8"-16 x 4" Socket Head Cap Screw Partially Threaded Coarse Alloy Steel Nylon-Patch Thermal Black Oxide, 100 pcs/Pack Package:100 Fender washers have a largerHigh quality Socket Head Cap Screw, perfect for various applications. Thread Size: 3 8 16 Length: 4 Material: Alloy Steel Finish: Nylon Patch Thermal Black Oxide Thread Type: Partially Drive Style: Socket System Of Measurement: Inch