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4-40UNC CSK Socket Screws Stainless Steel
Description
CSK Socket Screws 4-40 UNC Stainless Steel
These 4-40 UNC CSK (countersunk) socket screws are crafted from corrosion-resistant stainless steel for reliable fastening in compact, precision applications. The Unified National Coarse 4-40 thread is ideal for securing small components in metal, plastic, and composite materials.
With a low-profile countersunk head that sits flush with the surface and an internal hex (Allen) drive for controlled torque, these screws are commonly used in electronics, instrumentation, robotics, and fine mechanical assemblies. Their stainless steel construction ensures long-term performance, even in environments exposed to moisture or vibration.
