Meridyen Self-Drilling Screw Yhb 4.8X32 (6,000 Pieces)

Meridyen Self-Drilling Screw YHB – 4.8x32 mm (6,000 Piece Box)

Meridyen Self-Drilling Screw YHB, sized 4.8x32 mm, is a professional fastener that can be screwed directly into metal and wood surfaces without the need for pre-drilling. Thanks to its Phillips countersunk head (YHB) design, it sits flush with the mounting surface, providing a smooth and aesthetic finish. The 32 mm length is the longest model in the series, ensuring maximum penetration in very thick materials and multi-layered joints. The drill tip bores through the material and creates its own thread, significantly reducing labor time and cost. This product is sold in boxes containing 6,000 screws; it is ideal for wholesale purchase, factory stock, and heavy industrial applications.

Technical Specifications

4.8 mm Series Comparison: All Lengths

What is a Self-Drilling Screw? What are the Advantages?

• No Pre-Drilling Required: The drill tip bores through the material and creates its own thread; it does not require separate drill bit changes or hole-drilling processes.
• Time & Cost Savings: By performing drilling + screwing in a single step, it reduces labor time by up to 50%.
• Phillips Countersunk Head (YHB): The screw head sits flush with the mounting surface, providing a smooth, aesthetic, and safe finish.
• Maximum Holding Power: The 32 mm length provides very deep thread penetration, minimizing the risk of loosening; it is secure even in vibrating environments.
• Wholesale Cost Advantage: The 6,000-piece box reduces the unit cost in heavy industry and large-scale projects.

Application Areas

• Heavy Steel Construction: Thick profile joining, frame assembly, structural connections
• Roofing & Cladding: Multi-layered trapezoidal sheet, sandwich panel, gutter installation
• Industrial Furniture: Heavy shelving systems, machine stands, modular units
• General Industrial: Machine assembly, maintenance-repair, heavy construction
• Workshop & DIY: Custom projects, prototype production, repairs

Frequently Asked Questions

What does "YHB" mean?

YHB is the abbreviation for "Yıldız Havşa Baş" (Phillips Countersunk Head). The screw head has a Phillips drive profile and, thanks to its countersunk form, sits flush with the mounting surface. It ensures an aesthetic and secure connection.

Which bit should be used?

For 4.8 mm diameter self-drilling screws, a PH2 Phillips bit is generally recommended. Choosing the correct bit prevents damage to the screw head and optimizes torque transfer.

In which materials does the 32 mm length provide an advantage?

The 32 mm length provides 13 mm more penetration than the 19 mm version. This means maximum grip in very thick metal sheets/profiles (7–9 mm) and multi-layered wood-metal joints. Shorter lengths may be sufficient for thin-to-medium sheets.

Why is the box quantity lower than other models?

32 mm screws are the longest and heaviest model in the series; therefore, they are packed 6,000 pieces per box (19 mm: 12,000, 22 mm: 9,000, 25 mm: 8,000). Please consider this difference for logistics planning and stock management.

What is the difference between a self-drilling screw and a standard screw?

Standard screws require a pre-drilled hole; self-drilling screws create their own hole. This significantly reduces labor time and cost, especially in metal applications. It also provides fast assembly in wood applications.