1/2"-20 x 1-1/4" Button Socket Head Cap Screw Fully Threaded Fine Alloy Steel Thermal Black Oxide, 300 pcs/Pack Package:300 Dowel pins are cylindrical rods

Dowel pins are cylindrical rods used to align and secure components in mechanical assemblies

Countersunk serrated lock washers feature a unique design that provides a secure grip and prevents loosening under vibration

while the nylon insert grips the threads of the bolt

Thread Size: 1/8-12

Drive: External Hex

1/2"-20 x 1-1/4" Button Socket Head Cap Screw Fully Threaded Fine Alloy Steel Thermal Black Oxide, 300 pcs/Pack Package:300 Dowel pins are cylindrical rodsHigh quality Button Socket Head Cap Screw, perfect for various applications. Thread Size: 1 2 20 Length: 1 1 4 Material: Alloy Steel Finish: Thermal Black Oxide Thread Type: Fully Head Style: Button Drive Style: Socket System Of Measurement: Inch