Laptop screw set in carbon steel with black plating available in 450PCS, 650PCS or 720PCS flat head machine screw kits for PC and laptop repair with 1.4mm diameter and 16mm length cross recess countersunk head screws
Laptop Screw Set in Three Sizes: 450PCS, 650PCS or 720PCS Flat Head Machine Screws for PC Repair

When working on laptop and PC repairs, having the right fasteners on hand can streamline maintenance tasks and reduce downtime. This laptop screw set offers three different quantity options—450, 650, or 720 pieces per box—providing flexibility for both occasional home repairs and more frequent professional use. Each screw features a 1.4mm diameter and 16mm length with standard thread specifications, making them suitable for various computer assembly applications where small, precise fasteners are required. The countersunk head design ensures these screws sit flush with surfaces, while the black plating offers both corrosion resistance and a consistent appearance across your repair projects.
Features and Construction

This laptop screw set combines practical design elements with material specifications suited to computer hardware applications. The set's construction follows industry standards for small machine screws, with attention to dimensions and surface treatment that make these fasteners suitable for electronic device assembly and repair work.
Material and Build
These laptop screws are manufactured from 4.8 grade carbon steel, a material choice that provides the necessary structural strength for fastener applications in electronic devices. The black plating surface treatment applied to each screw offers corrosion resistance, which helps maintain the screws' appearance and function over time. Each screw is graded A grade, indicating consistent manufacturing quality across the set. The standard thread specification with 4h tolerance ensures reliable engagement with threaded components in laptops and PCs.
Size and Practical Fit
With a diameter of 1.4mm and length of 16mm, these screws are dimensionally suited to laptop and small PC assembly requirements. The countersunk head design allows the screw head to sit flush with surfaces, which is particularly important in electronic devices where space is limited and protruding components could interfere with other parts. The cross recess groove accommodates standard Phillips screwdrivers, making these screws compatible with common tool sets used in computer repair work. The hand-twist mode of action indicated for these screws suggests they are designed for manual installation rather than power tool use.
Uses and Placement

Understanding where and how to use these laptop screws helps maximise their practical value in different repair scenarios. The set's specifications make it suitable for various applications within computer hardware, from basic home repairs to more extensive professional maintenance work.
Event or Professional Use
For professionals working in computer repair services or IT departments, the larger set sizes—650PCS or 720PCS—provide sufficient quantities for multiple repair jobs without frequent reordering. The consistent specifications ensure reliable performance across different devices, while the black plating maintains a professional appearance in finished repairs. The standard thread specifications with 4h tolerance mean these screws should fit appropriately in properly threaded components, reducing the risk of cross-threading during installation.
Everyday Home Use
For home users performing occasional laptop repairs or upgrades, the 450PCS set offers a practical quantity for common maintenance tasks. The hand-twist installation method makes these screws accessible to users without specialised tools, while the cross recess design ensures compatibility with household screwdriver sets. The flush-fitting countersunk head prevents protruding screws that could snag on laptop bags or other surfaces, maintaining the device's streamlined profile after repair work.
Benefits and Buying Value

The practical advantages of this laptop screw set extend beyond the immediate repair task, offering value through material specifications, quantity options, and design features that support various computer maintenance scenarios.
Reuse and Low Maintenance
The carbon steel construction with black plating treatment contributes to the screws' durability and resistance to corrosion, supporting potential reuse across multiple repair cycles. The standard thread specifications mean these screws should be interchangeable with existing laptop fasteners in many cases, reducing the need to source multiple screw types for different devices. The three quantity options allow users to select a set size that matches their expected usage frequency, minimising waste while ensuring adequate supply for planned repair work.
Why Choose This Product
This laptop screw set offers distinct practical advantages for computer repair work through its specific material and dimensional specifications. The 4.8 grade carbon steel provides appropriate strength for electronic device applications, while the black plating offers both functional corrosion resistance and visual consistency. The availability in three different set sizes—450, 650, or 720 pieces—provides flexibility for users with varying repair frequency needs. The 1.4mm diameter and 16mm length dimensions target laptop and small PC applications specifically, unlike general-purpose screw sets that may include unsuitable sizes.
