ST4.2x13 cross semi-round head self-tapping carbon steel galvanized screws; A75C; K032

Meet the ST4.2x13 cross semi-round head self-tapping carbon steel galvanized screws—a compact, dependable fastening solution built for quick, clean assemblies in wood and light metal projects. With a precise 4.2 mm diameter and 13 mm length, these screws bite efficiently in tight spaces, while the cross (Phillips) drive ensures steady turning and reduced cam-out. The galvanized finish delivers reliable corrosion resistance for both indoor and modest outdoor use. Identified by the batch codes A75C and K032, they combine consistent quality with traceability.

What makes these screws stand out

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  Cross Phillips drive for reliable engagement and smoother driving in tougher materials.
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  Semi-round head provides strong seating and a clean, slightly rounded profile that won’t sit too proud in visible assemblies.
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  ST4.2x13 dimensions deliver a compact fastener ideal for lightweight joinery, cabinetry, and furniture projects.
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  Carbon steel with galvanization combines strength with corrosion resistance, suitable for damp environments and exterior-grade applications.
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  Self-tapping design forms its own thread in soft woods, plywood, particleboard, and thin metal sheets—reducing the need for pre-drilling and speeding up монтаж.
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  Product codes A75C and K032 ensure batch consistency and traceability across shipments.

Ideal applications

Perfect for furniture assembly, shelving, framings, and fixtures where a discreet, sturdy fastener is desired. Use in softwoods like pine or spruce and in plywood or particleboard for quick, reliable joints. The 4.2 mm diameter strikes a balance between grip and appearance, making them a versatile choice for DIY projects, workshops, and light construction tasks.

Practical installation tips

• In hardwoods, pre-drill pilot holes to prevent splitting; in softwoods and engineered boards, the self-tapping action reduces prep time.
• Use a compatible Phillips bit and drive at a steady pace to avoid stripping the head. Stop as soon as the head seats flush with the surface.
• For outdoor or semi-exposed use, consider a topcoat or sealant around the screw area to extend longevity in humid conditions.

Specifications at a glance

• Diameter x Length: ST4.2 x 13 mm
• Head type: Semi-round
• Drive: Cross (Phillips)
• Material: Carbon steel
• Finish: Galvanized
• Recommended materials: Softwood, plywood, veneer, particleboard, and thin metal sheets
• Batch codes: A75C, K032

Equip your toolkit with these ST4.2x13 cross semi-round head self-tapping screws to achieve fast, reliable joins with a professional finish. Their combination of size, drive, and galvanized protection makes them a practical choice for everyday projects and longer-lasting connections.