M1.6 Phillips Flat Head Carbon Steel Machine Screws (Multiple Lengths & Finishes) | 50-Pack

These are Phillips flat head machine screws made from carbon steel in M1.6 size, designed for precision fastening applications in small electronics, eyewear, portable devices, precision instruments, and compact mechanical assemblies.

M1.6 screws bridge the gap between ultra-miniature fasteners (M1.2, M1.4) and the more common small metric sizes (M2, M2.5). This intermediate sizing is frequently specified in eyeglass frames, small consumer electronics, portable devices, precision instruments, and compact assemblies, yet M1.6 screws are difficult to source locally and are often confused with M1.4 (too small) or M2 (too large) sizes. Using M1.4 screws will result in loose connections with excessive play that cannot properly secure components, while forcing M2 screws will cross-thread and permanently damage the threaded holes in plastic housings, aluminum frames, or precision-machined parts. The flat head countersunk design is critical for applications requiring flush mounting where protruding screw heads would interfere with adjacent components or create an unprofessional appearance in visible applications like eyewear and consumer electronics.

This exact M1.6 screw set solves these problems by providing authentic metric M1.6 x 0.35mm thread pitch in multiple lengths to accommodate various material thicknesses and precision assembly applications. The Phillips flat head design allows the screw to sit flush or below the surface when used with countersunk holes, creating clean, professional assemblies without any protrusion. Available in both black oxide and zinc-plated finishes, these screws offer corrosion resistance appropriate for their application while maintaining the precise tolerances needed for reliable thread engagement in small components. The carbon steel construction provides excellent strength-to-size ratio, preventing stripping during installation while ensuring durable, long-lasting fastening that won't loosen over time.

Compatibility

• Eyeglass frames and optical equipment
• Small electronics and portable devices
• Laptop hinges and small computer components
• Precision instruments and measurement tools
• Camera equipment and small accessories
• Watch components and small timepieces
• Medical devices and diagnostic equipment
• Small robotics and automation components
• Hobby electronics and DIY projects
• Compact mechanical assemblies
• Any application requiring M1.6 x 0.35mm metric machine screws

Specifications

• Screw Type: Phillips Flat Head Machine Screws
• Thread Size: M1.6 x 0.35mm (1.6mm diameter, 0.35mm pitch)
• Length: Multiple options available (3mm, 4mm, 5mm, 6mm, 8mm, 10mm)
• Head Style: Flat Head (Countersunk, 82° angle)
• Material: Carbon Steel
• Finish: Black Oxide or Zinc Plated (Silver)
• Thread Standard: ISO Metric Fine Thread
• Drive Type: Phillips (Cross recess)
• Quantity: 50 screws per pack