600 Grit Silicon CarbideSandpaper 4-1/2" x 11" Sheet (500 Sheets), 500PK It is best for metals (particularly harder metals) and is the only grain that can be used on glass, stone and marble..
R-361 Square O-Ring (ID: 6", CS 3/16", OD 6 3/8"), 48PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
Rounded on one side, flat on the other; Ideal for rounding out holes, files can be used on concave, convex, and flat surfaces; Rapidly removes material but leaves a smooth finish.
Machine screws are used in fastening nearly all types of hard materials.#12-24 x 1 in Slotted Flat Machine Screw, Plain Brass, 20 PK Commonly used with flat or lockwashers. Especially useful in metal-to-metal or where heavy duty fastening is required..