Introducing a practical, cost-effective fastening solution for light-duty metalwork and quick assemblies: USED Cross recessed countersunk head Tapping screws in a carbon steel, black zinc-plated finish. These ST4.2x13 mm screws (K014) are ready to tackle projects where a flush, finished look matters, without the price of new fasteners.

• Self-tapping convenience: designed to form threads as you drive, ideal for thin metal sheets, brackets, and light frames without the need for pre-threading.
• Flush, low-profile finish: the countersunk head sits neatly against surfaces, delivering a clean, long-lasting appearance in enclosures, panels, and housings.
• Durable, corrosion-resistant coating: black zinc plating provides a protective layer that helps resist moisture and surface wear, making them suitable for garages, workshops, and indoor-use applications.
• Solid material: carbon steel delivers reliable strength for everyday fastening tasks while keeping costs down in used hardware lots.
• Precise size for common applications: 4.2 mm diameter with a 13 mm length fits many thin-gauge metal panels and brackets, offering a versatile option for quick repairs and light assemblies.
• Value-oriented choice: because these are part of a used lot, they offer substantial savings for non-critical projects, prototypes, or replacement hardware where exact-newness isn’t essential.

Ideal use scenarios

Practical installation tips

• Use a compatible Phillips (cross recessed) driver to achieve proper seating without cam-out.
• Prepare a suitable pilot hole in metal when needed to ensure clean tapping and avoid thread stripping.
• Avoid over-tightening to preserve the coating and prevent stripping of the metal workpiece.
• Inspect each fastener for any surface damage or wear before use, and store in a dry environment to maximize their remaining service life.

Whether you’re prototyping a metal frame, replacing worn fasteners in an enclosure, or outfitting a hobby project, these USED ST4.2x13 mm cross recessed countersunk tapping screws offer dependable performance with tangible cost savings. They’re the reliable, flush-mount solution you can reach for again and again, without compromising on strength or finish.