Cap head screws are a versatile type of fastener that is widely used in various industries. Their distinctive mushroom-shaped head provides a high-bearing surface and prevents the screw from over-tightening. Among the different sizes available, the M2.5 x 10 cap head screw is a popular choice due to its ideal combination of strength and functionality.
The "M2.5" designation indicates the screw's nominal diameter of 2.5 millimeters. The "10" refers to the screw's length in millimeters, which in this case is 10 millimeters.
M2.5 x 10 cap head screws are typically made from either stainless steel or low-carbon steel. Stainless steel screws offer superior corrosion resistance, while low-carbon steel screws provide a more economical option.
The grade or class of the screw indicates its tensile strength. Common grades for M2.5 x 10 cap head screws include A2 and A4 for stainless steel and 4.8, 8.8, and 10.9 for low-carbon steel.
Cap head screws can come with different drive types, such as Phillips, slotted, and Torx. The most common drive type for M2.5 x 10 screws is the Phillips #1 drive.
M2.5 x 10 cap head screws are suitable for a wide range of applications, including:
Material | Grade | Tensile Strength (MPa) |
---|---|---|
Stainless Steel | A2 | 500-700 |
Stainless Steel | A4 | 700-850 |
Low-Carbon Steel | 4.8 | 400-500 |
Low-Carbon Steel | 8.8 | 800-1000 |
Low-Carbon Steel | 10.9 | 1000-1200 |
Drive Type | Symbol |
---|---|
Phillips #1 | PH1 |
Slotted | SL1 |
Torx T6 | T6 |
Application | Description |
---|---|
Electronics Assembly | Securing PCBs and other electronic components |
Medical Devices | Fastening medical devices and implants |
Automotive Parts | Assembling small automotive parts, such as sensors |
Appliances | Fixing panels and components in appliances |
Furniture | Assembling furniture, such as drawers and shelves |
Cap head screws have a mushroom-shaped head, while socket head screws have a hexagonal head. Cap head screws provide a higher bearing surface but are less suitable for high-torque applications.
The best material for cap head screws depends on the application. Stainless steel provides excellent corrosion resistance, while low-carbon steel is more economical.
The grade of a cap head screw indicates its tensile strength. Higher grades indicate stronger screws. Common grades for M2.5 x 10 cap head screws include 4.8, 8.8, and 10.9.
Washers are used to distribute the load and prevent the screw from sinking into soft materials.
You can prevent cap head screws from loosening by applying a small amount of thread-locking compound to the threads before tightening.
The recommended torque for M2.5 x 10 cap head screws varies depending on the material and grade. Generally, the torque range is between 2.5 and 5.5 Newton-meters.
Yes, you can use cap head screws in outdoor applications if they are made from corrosion-resistant materials, such as stainless steel.
M2.5 x 10 cap head screws can be purchased from hardware stores, home improvement centers, and online retailers.
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