Cross recessed countersunk head tapping screws -ST4.2x13- carbon steel

Cross recessed countersunk head tapping screws - ST4.2x13 - carbon steel

Engineered for flush, high-torque fastening in metal and hard plastics, these cross recessed countersunk head tapping screws deliver reliable self-tapping performance in a compact 4.2mm diameter and 13mm length. The ST4.2x13 size is ideal for lightweight metal assemblies, brackets, and enclosures where a low-profile, finished surface matters.

Why this screw stands out

• Self-tapping design: cuts its own threads in thin metal sheets or plastic, eliminating the need for a tapped hole
• Countersunk head: creates a flush surface that reduces snagging and provides a clean appearance
• Cross recessed (Phillips) drive: familiar, widely compatible with standard screwdriver bits, reduces cam-out in limited-clearance spaces
• Carbon steel construction: sturdy, rigid connection with good torque transfer for stable joints
• Precise ST4.2x13 dimensions: 4.2 mm nominal shank diameter, 13 mm overall length for compact assemblies
• Versatile, indoor-ready fastener: suitable for cabinetry, appliance housings, electrical enclosures, and lightweight metal brackets

Ideal use cases

These screws shine in projects where you need a neat, low-profile finish while still achieving secure fastenings. Examples include:

• Attaching thin metal brackets to frames in metal enclosures
• Joining sheet metal panels in home or workshop electronics projects
• Securing plastic or composite components that require threaded fasteners without visible screws

Installation tips

1. Choose an appropriately sized pilot hole to accommodate the self-tapping screw and prevent thread deformation
2. Drive with a correctly sized Phillips bit to minimize cam-out and maximize torque transfer
3. Do not overtighten; stop once the head sits flush with the surface to maintain a clean finish

Specifications at a glance

• Drive type: Phillips (cross recessed)
• Head type: Countersunk
• Material: Carbon steel
• Diameter x length: ST4.2 x 13 (approximately 4.2 mm diameter, 13 mm length)
• Applications: Self-tapping fasteners for metal and hard plastics

With the right pilot hole and the familiar Phillips drive, these cross recessed countersunk head tapping screws provide a dependable, flush-mount fastening solution ideal for DIY projects, home improvement, and light industrial assemblies. Choose ST4.2x13 carbon steel when you need a compact, durable self-tapping fastener that disappears beneath the surface while delivering a strong hold.

Note: Carbon steel screws are best suited for indoor applications or protected environments. For outdoor use or high-humidity conditions, consider protective coating or stainless alternatives.