Used Cross Recessed Large Flat Head Carbon Steel Self-Tapping Screws ST4×35 offer a dependable, flush-mount solution for quick, clean assemblies in woodworking and light metal work. The combination of a Phillips drive, a large countersunk head, and a precise 4×35 size makes these screws a practical choice for DIY projects and small construction tasks where speed and a neat finish matter.

Key features

• Drive type: Cross recessed (Phillips) head for broad compatibility with common screwdrivers and bits.
• Head style: Large flat countersunk head sits flush with the surface for a smooth, professional look.
• Material: Carbon steel delivers solid strength and reliable bite in softwood, plywood, particleboard, and light metal applications.
• Self-tapping design: Cuts its own threads in appropriate materials, reducing the need for pre-drilling in many projects.
• Size: ST4×35 translates to a 4 mm shank diameter and 35 mm length— ideal for joining boards and mounting hardware with a clear, compact profile.
• Condition: Sold as USED, may show minor cosmetic wear but retains functional threading and drive compatibility; suitable for interior or non-rigid finish work where appearance is not critical.

Ideal uses

• Cabinetry, furniture assembly, and shelving where a flush, discreet fastener is desired
• Woodworking joinery in softwoods and plywood, such as frames, panels, and boxes
• Mounting hinges, brackets, or hardware to wooden surfaces or thin metal sheets
• DIY repairs, upgrades, or expedient fixes around the shop or home

How to use

• Choose a driver that fits snugly into the Philips recess to avoid cam-out.
• Use an appropriate pilot hole: hardwoods typically benefit from a pilot, while softwoods may accept direct driving with care to avoid splitting.
• Aim for a steady, controlled drive to achieve a clean countersunk finish without over-tightening, which helps preserve the screw head and surrounding material.
• For outdoor or relentlessly moisture-prone environments, consider upgrading to coated or corrosion-resistant fasteners, as carbon steel screws may rust over time without protection.

Practical tips

• Inspect used screws before use; discard any with bent shafts or damaged threads.
• Store in a dry location to extend usability and reduce rust risk in future projects.
• Packaging and exact quantity can vary—these screws are sold as USED, so expect some variance between batches while maintaining core performance.