Shoulder Diameter: 2.32~2.48 mm, Shoulder Length: 7.0 mm; Head Diameter: 4.0~4.5 mm; Head Thickness: 0.7~0.8 mm Application to Laptop, Desktop PC, Laptop Bottom case, Inspiron 5000 7000 series, other Brand Laptop Backplate, and even some Palmrests and Base plastics. This Screw has a Thin flat-head, it has a Phillips style head. Please check your OLD SCREWS is EXACTLY THE SAME BEFORE Purchasing!! Each pack includes: 10x M2.5x7.0 mm Phillips Flat-Head Screws w/ Nickel (Black). 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