*USED* Inner Hexagon Round Head Carbon Steel Black Zinc Plated Screws-M4*12

Used Inner Hexagon Round Head Carbon Steel Black Zinc Plated Screws - M4 x 12 offer a compact, dependable fastening solution for metal-to-metal assemblies. The rounded head and internal hex drive combine a clean appearance with reliable torque transfer in tight spaces.

• Size: M4 x 12 mm
• Drive: Internal hex (Allen)
• Head: Round head for a low-profile finish
• Material: Carbon steel
• Finish: Black zinc plating for a subtle look and corrosion resistance
• Condition: Used (may show light cosmetic wear from prior use; functional threads and drive intact)

The inner hex socket provides secure engagement and reduces cam-out, making these screws ideal for electronics enclosures, metal brackets, and compact assemblies where space is limited. The black zinc finish not only looks professional but also protects against rust in typical indoor environments.

Ideal use cases:

• Electronics enclosures and control panels
• Metal brackets, frames, and chassis assemblies
• Furniture repair or assembly where a small, discrete fastener is preferred
• DIY projects requiring a durable, repeatable fastening solution

Tips for use:

• Use an appropriately sized hex key (Allen wrench) to avoid stripping the drive
• Ensure you have a receiving tapped hole or compatible nut for the M4 thread
• Inspect the threads and head area when reusing used screws; replace if threads are damaged or if the finish is severely worn

These M4 x 12 mm inner-hex round head screws in a black zinc finish are a practical, cost-effective choice for projects that require a sturdy, compact fastener with a clean, professional look. Sold as-used, they're ready to support your next build or repair with reliable performance and easy drive access.