*USED* Hexagon ocket ig lat ound ead 4x16 crew fter-sales ssembly

Used hexagon socket head cap screw, 4x16

This pre-owned fastener delivers reliable performance in a compact, widely-used size. With a 4x16 footprint (4 mm diameter, 16 mm long), it’s a common choice for brackets, enclosures, and small machinery where a strong, clean drive is needed. The hex socket (Allen) drive provides even torque transfer and a neat, low-profile appearance in assembled projects.

• 
  Condition: Used
• 
  Drive: Hex socket (Allen)
• 
  Head style: Socket head cap screw
• 
  Dimensions: 4 mm diameter x 16 mm length
• 
  Applications: After-sales assembly, repairs, and budget-friendly replacements in machinery, electronics housings, and DIY builds

Why this matters: using a standard-sized, used hex socket head screw can make repairs faster and more economical. You can keep a few on hand for quick field repairs, restorations, or projects where a robust, dependable fastener is required without paying for new parts.

How to use:

1. Choose the correct hex key (Allen wrench) size for the drive on the screw.
2. Align the fastener with the threaded hole and hand-thread it to avoid cross-threading.
3. Use the hex key to tighten until snug, then stop to avoid over-torquing and potential head damage.

Note: As a used item, expect minor cosmetic wear consistent with previous use. This listing focuses on functionality and value for after-sales assembly and ongoing maintenance projects.