The Self Tapping Screw 4.2x38mm is a high-quality metal fastener designed to deliver superior holding power and long-term reliability. Manufactured from hardened steel and finished with a zinc coating, this screw resists rust and wear, making it ideal for both indoor and outdoor use.

With its sharp, self-tapping point, this screw can cut its own threads as it is driven into materials — eliminating the need for pre-drilling. This saves time and reduces labor costs, especially in construction, carpentry, roofing, and general repair projects.

Whether you are a professional installer or a DIY enthusiast, the 4.2x38mm screw offers unbeatable strength and consistent performance, ensuring your assemblies stay secure and neat.

Applications

• Metalwork: Fasten sheet metal, ducts, and light-gauge steel structures.
• Woodworking: Ideal for joining wood boards and panels securely.
• Plastic Installations: Works well for PVC, polycarbonate, and other plastics.
• Electrical & Plumbing Fittings: Mount brackets, conduits, and fixtures efficiently.
• General Construction: Reliable for wall framing, roofing, and furniture assembly.

Key Benefits

• Strong Grip: Hardened steel design ensures a solid, long-lasting hold.
• Corrosion Resistance: Zinc coating prevents rust in humid or outdoor environments.
• Time-Saving: No need for pre-drilling — screw taps directly into the material.
• Multi-Material Use: Compatible with metal, wood, and plastic.
• Precision Threading: Ensures smooth penetration and reduces cracking or splitting.

Technical Specifications

Installation Tips

1. Align materials to be joined.

2. Position the screw at the fastening point.

3. Use a compatible screwdriver or drill for installation.

4. Apply steady pressure — the self-tapping tip will cut threads as it drives in.

5. Stop once the screw head sits flush with the surface.

Maintenance

• Store in a dry, cool environment to prevent corrosion.
• Avoid mixing with non-coated screws.
• Use the correct screwdriver bit for precision.
• Clean and inspect surfaces before fastening.

Related Products

• Self Tapping Screws 8×2 (250 Pieces)

• Drill Bits

• Welding Rods

• Power Tools

Call Us: +254 (0)715 974 811
Email: ngonghillsmerchants [at] gmail.com

Delivery: Same-day delivery available in Nairobi and Thika, and next-day shipping to Mombasa, Nakuru, Eldoret, Kisii, Nyeri, Machakos, Kericho, and all major towns in Kenya.

Explore More

• Shop All Products

• Plumbing Tools

• Glass Accessories

• Hand Tools