*USED* Inner Hexagon Socket Head Cap Screw -M6x25

This USED M6x25 Inner Hexagon Socket Head Cap Screw is a compact, reliable fastener designed for precise mounting in metalwork, machinery, and gear-driven assemblies. With a 6 mm diameter and 25 mm length, this socket cap screw sticks to standard M6 specifications and features an internal hex (Allen) drive for a clean, flush installation in tight spaces.

• 
  Size: M6 x 25 (6 mm nominal diameter, 25 mm overall length)
• 
  Drive: Inner hex (Allen) socket for a secure, low-profile fit
• 
  Head style: Socket head cap screw – ideal for accessing into recessed or crowded assemblies
• 
  Condition: USED – may show signs of prior use; suitable for non-critical or budget-conscious projects when inspected prior to install

Where this screw excels

Ideal for equipment and projects where space is at a premium, the M6x25 socket head cap screw provides a strong, reliable hold without protruding hardware. It’s well-suited for mounting brackets, motor mounts, enclosure panels, tool racks, and other components in CNC setups, robotics, 3D printer frames, and DIY machinery builds.

Why choose used, when you know the spec

By selecting this USED M6x25 fastener, you get the same nominal dimensions and drive as a new part at a more affordable price. It’s a practical option for prototypes, non-load-bearing fixtures, or projects where multiple fasteners are required and cost-per-piece matters. Each piece should be inspected for thread integrity and head condition to ensure a reliable fit in your application.

How to install and care for this screw

Before installation, inspect the threads and head for any damage or corrosion. Clean the threaded portion if needed and lubricate lightly to promote smooth engagement. Use a proper M6 hex key (Allen key) to avoid rounding the hex socket, and tighten to the appropriate torque for your host material to prevent over-tightening. For metal-to-metal joints, ensure adequate thread engagement and avoid cross-threading during assembly. Store in a dry environment to maintain usability for future projects.

Tips for optimal results

• Pair with matching M6 nuts or tapped holes that meet standard metric thread tolerances.
• In assemblies with aluminum or softer materials, consider a small amount of anti-seize compound or light lubrication to prevent galling and ease future disassembly.
• When used in critical or high-load applications, verify that the accompanying hardware and design meet your strength requirements and replace used fasteners if there is any doubt about material integrity.