Package Content: You will receive 120 pieces of metal self tapping screws in two colors, 30 black 8x1/2inch, 30 black 8x3/4inch, 30 silvery 8x1/2inch and 30 silvery 8x3/4inch. Sufficient quantity and assorted sizes can meet your and replacement. High Quality: Our self tapping screws are made of high-quality a new type of magnetic stainless steel, environmental friendly, sturdy and durable, hard to break and bend, providing you a long-time service. and our product is twice as hard as copper, not easy to be stripped. Reliable Design: The deep thread design of round head tapping nails is and provides good holding power in different materials for a tight joint. Fine Workmanship: Using high-precision cutting technology, the thread is very precise and clean, deep and clear and it can penetrate the sheet metal to a firm fixation, while not easy to deformation and sliding use. Multi-: round head sheet metal self-tapping screws are mainly used in a wide range of general industry, because it has good holding power. And for non-metals or soft metals with no mounting holes, just screwing directly into to achieve the effect of connection fastening. Product Description Specification: Color: Black & Silver Material: stainless steel Product Size: as shown in the detail picture Package Contents: 1 set x stainless steel screw Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.