*USED* Hexagon socket countersunk head carbon steel black zinc plated screws after-sales spare parts package-M4*16 K023

Keep a dependable, ready-to-use fastener on hand with this USED Hexagon socket countersunk head screw set. Sized M4×16 and crafted from carbon steel with a black zinc finish, it’s packaged as an after-sales spare parts kit (K023) for convenient repairs and replacements.

• Type: Hexagon socket countersunk head screw
• Material: Carbon steel
• Finish: Black zinc plating
• Size: M4 diameter, 16 mm length
• Condition: Used
• Packaging: After-sales spare parts package
• Part code: K023

The countersunk head sits flush with the surface, creating a clean, snag-free mounting that’s ideal for panels, housings, brackets, and other assemblies where a low-profile fastener is essential. The hex socket design lets you tighten securely in tight spaces, even when tool access is limited, making it a practical choice for maintenance, refurbishing equipment, or DIY projects.

Who benefits from this set? Technicians, hobbyists, and maintenance teams who frequently replace or stock standard fasteners for enclosures, electronics cabinets, furniture assemblies, or machinery housings. The included spare parts package format helps you keep your toolkit stocked without paying for new, never-used fasteners.

Practical usage notes: inspect each screw for wear or thread damage before installation, choose a compatible torque to avoid stripping, and consider a light thread locker if the application involves vibration. Given its carbon steel composition and protective black zinc coating, this fastener delivers dependable performance in everyday, non-extreme environments.