Thank you for viewing. FAS-LINK PREMIUM Light Gauge Steel Drywall Screw 3.0 x 7 x 20 Color: Bugle Head This product has improved penetration speed compared to conventional products due to the modification of the screw tip. Improved work efficiency. It penetrates easily with light force, and the screw doesn't roll, allowing for stress-free work. Two screw threads (blades) to the tip cut sharply into the light gauge steel base, enabling penetration with light force. Diameter: 3mm Head Diameter: 7mm Length: 20mm Part Number: PK-20 [Condition of the product] Used, approximately 400 screws have been used. The box is damaged. Please check the images. Due to packaging material constraints, the screws may be removed from the box and placed in a bag for shipping. The shipping method may be changed from Rakuraku Mercari Bin to Yuuyu Mercari Bin or vice versa. Please be aware of this. Instant purchase is welcome. Please feel free to ask if you have any questions.