Specification: Screws Type: Self Tapping Screw Material: Nickel plated Size: d(thread diameter) x L(thread length) For example: M4 * 20 (thread diameter 4mm * size 20mm), except for head size Metric Thread Diameter: M1.2 / M1.4 / M1.7 / M2 / M2.3 / M2.6 / M3 / M4 Package Quantity: 30/50/100/300 Pcs Self Tapping Screw The above data is manually measured and there may be some errors. Those who mind, please place orders with caution. Unit: mm