#4-40 Hex Machine Screw Nut, Black Oxide, Steel, RoHS Compliant, by Fastener Pro (100-Pack)

Steel Pan Head Machine Screw, Black Oxide Finish, Meets ASME B18.6.3, #1 Phillips Drive, #4-40 Thread Size, 1/2" Length, Fully Threaded, Import (Pack of 100)

Steel Pan Head Machine Screw, Black Oxide Finish, Meets ASME B18.6.3, #1 Phillips Drive, #4-40 Thread Size, 3/8" Length, Fully Threaded, Import (Pack of 100)

Steel Pan Head Machine Screw, Black Oxide Finish, Meets ASME B18.6.3, #1 Phillips Drive, #4-40 Thread Size, 1" Length, Fully Threaded, Import (Pack of 100)

Steel Pan Head Machine Screw, Black Oxide Finish, Meets ASME B18.6.3, #1 Phillips Drive, #4-40 Thread Size, 3/4" Length, Fully Threaded, Import (Pack of 100)

The Hillman Group 140009 Zinc Hex Machine Screw Nut, 4-40, Pack of 100

Aven 17010 Adjustable Circuit Board Holder

Hakko CHP CSP-30-1 Wire Stripper, 30-20 Gauge Maximum Cutting Capacity

Arduino Uno R3 Microcontroller A000066