*USED* Screw ST2.9*9.5-Self-tapping carbon steel with cross semicircle head plated with black zinc

Meet a compact, dependable fastener crafted for quick, precise assemblies in metal, plastic, and light-duty projects. This ST2.9 × 9.5 self-tapping screw, sourced as *USED*, blends a robust carbon steel core with a sleek black zinc finish for practical performance and a clean finish on visible hardware.

Key specifications at a glance

• ST2.9 × 9.5 mm (approximately M2.9 thread with a 9.5 mm length)
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  Material: Carbon steel for reliable grip and enduring strength
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  Drive type: Phillips-style cross recess for stable, slip-free driving
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  Head shape: Cross semicircle head designed to sit flush and look streamlined
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  Finish: Black zinc plating for modest corrosion resistance and a professional appearance
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  Condition: Used — expect minor cosmetic wear; threading and head remain serviceable for secure fastening

Why this screw stands out — The self-tapping design in combination with a carbon steel body enablesDirect-entry into suitable materials, eliminating the need for perforated pilot holes in many soft metals and plastics. The black zinc finish provides a durable, shielded layer that resists wear and nicks in everyday use, while the compact size keeps fasteners unobtrusive in tight assemblies.

Ideal use cases

• Attaching thin sheet metal panels and enclosures (appliances, hobbyist electronics housings, tiny brackets)
• Securing plastic components and lightweight structural parts where a clean, low-profile head is desirable
• DIY projects and repairs in automotive interiors or furniture builds where a discrete fastener is preferred

Practical tips for best results

• Use a compatible Phillips screwdriver to maximize drive stability and minimize cam-out; apply steady, even pressure as you tighten
• Self-tapping works best in relatively soft metals and plastics; for harder materials, consider a pilot hole to guide the screw and prevent thread deformation
• Avoid over-tightening to preserve thread integrity and prevent material damage; check fit before full seating
• As a used item, inspect the head and threads for any deformation or excessive wear before reuse; replace if compromised for critical connections

Designed for practical, everyday fastening where strength, a clean appearance, and ease of installation matter. If you’re assembling lightweight metal panels, enclosures, or plastics, this ST2.9 × 9.5 self-tapping screw delivers dependable performance with a professional finish.