*USED* Cross recessed countersunk head tapping screws -ST4.2x13- carbon steel

Meet a compact, dependable fastening solution built for metalwork and quick assemblies: the USED Cross recessed countersunk head tapping screws in ST4.2x13, crafted from carbon steel. These self-tapping screws are designed to bite into sheet metal and thin materials with ease, delivering a flush, clean finish you can rely on.

Why these screws stand out

• Cross recessed countersunk head with a Phillips drive for balanced torque and a low-profile seating that sits flush against the work surface.
• Self-tapping design forms its own threads in pre-drilled holes, reducing assembly time and eliminating the need for nut involvement in many projects.
• ST4.2x13 size provides a precise 4.2 mm diameter and 13 mm length, ideal for light-to-moderate metal fastening without protrusion.
• Carbon steel construction delivers dependable strength and durability for everyday applications, from hobby projects to small-scale fabrication.
• Used condition these screws are pre-owned and sold as-is, offering an economical option for projects where perfect新品 isn’t required or where you’re stocking up for repetitive tasks.

Ideal use cases

• Sheet metal assemblies in electronics enclosures, chassis, or DIY metal projects where a flush finish is desired.
• Cabinetry, metal framing, or light appliance installations where quick, secure fastening is beneficial.
• Repair or retrofit work involving thin metal panels where self-tapping capability saves time.

How to install

• Prepare a compatible pilot hole to accommodate the ST4.2 diameter for clean tapping and optimal grip.
• Insert the countersunk screw and drive with a Phillips screwdriver to achieve a flush, secure seating.
• Avoid over-tightening to preserve thread integrity and prevent material distortion—aim for firm, snug engagement that seats flush with the surface.

What to know before you buy

• Best for lighter metal gauges and panels where a low-profile, neat finish matters.
• As used hardware, wear and cosmetic variation may be present; inspect each screw for burrs or damage prior to use.
• Consider stocking a few pilot hole guides and a compatible screwdriver for consistent results across projects.

Product specifications

• Cross recessed (Phillips)
• Head: Countersunk
• Threading: Self-tapping
• Diameter x length: ST4.2 x 13
• Material: Carbon steel
• Condition: Used

For DIY enthusiasts, hobbyists, and professional makers alike, these USED Cross recessed countersunk head tapping screws in ST4.2x13 offer a practical, cost-effective solution for quick, flush metal fastening. They’re ready to work on your next project—just pick a suitable pilot hole, drive, and enjoy a clean, secure finish.