uxcell Knurled Thumb Nuts, M3 Round Knobs with, Nickel Plating, Pack of 20 Size:M3 Aluminum Oxide abrasive material is

Aluminum Oxide abrasive material is more aggresive than Silicon Carbide

Package Included: Acorn Cap Hex Nuts 1/2- 13 x 10 PCS About Acorn Cap Nuts Acorn nut are hex nuts with a domed top to cover the end of the bolt tip so to protect the thread and provides a finished appearance The exposed threads should not be longer than the inside height of the cap nut

5 mil thickness clear filament duct tape

which is made of polyester film tape

1pcs 3mm A1 broach and 1pcs shim

uxcell Knurled Thumb Nuts, M3 Round Knobs with, Nickel Plating, Pack of 20 Size:M3 Aluminum Oxide abrasive material isuxcell Knurled Thumb Nuts, M3 Round Knobs with, Nickel Plating, Pack of 20 1. A thumb nuts with a knurled outside surface, this facilitates tightening by hand. 2. The circular nut with knurled is easy to assemble and disassemble. 3. Made of good quality metal material, nickel plated finished, wear resisting and durable to use. Specification: Material: MetalFinish: Nickel platedThread Size: M3 x 0. 5mmOutter Diameter: 11mm 0. 43"Overall Height: 7mm 0.