This is the little screw mainly used on Laptop, Desktop PC, Laptop Bottom case, Inspir0n 5000 7000 series, other Brand Laptop Backplate, and even some Palmrests and Base plastics. Specification: Color: Black Material: Steel Finish: Nickel Plated Groove Type: Phillips Thread Thread size: M2.5 x 7.0 mm Shoulder Diameter: 2.322.48 mm Shoulder Length: 7.0 mm (Not included head) Head Diameter: 4.04.5 mm Head Thickness (Head Height): 0.70.8 mm