Enhance your builds with dependable, budget-friendly fastening from Carbo. These pre-owned M4 x 16 hex socket head screws deliver reliable clamping for a range of assemblies where appearance isn't critical but performance matters. With an Allen-drive and compact M4 size, they're a versatile choice for hobbyists, makers, and light industrial projects alike.

Key advantages and what to expect:

• Size and drive: M4 diameter, 16 mm length, hex socket head designed for use with a hex key that fits M4 hardware (typically 2.5 mm). This combination offers a secure, flush finish in tight spaces.
• Condition: pre-owned. While used, these fasteners are suitable for non-critical applications, prototyping, or bulk fastener needs where appearance is less important than function.
• Ideal use cases: perfect for 3D printer frames, DIY robotics mounts, electronics enclosures, bike accessories, and other small- to medium-sized assemblies where you need reliable gripping power in a compact form factor.
• Why choose used: cost-effective option that keeps parts in circulation. Great for projects on a budget or when building multiple assemblies that require consistent sizing.
• Tips for best results: verify thread engagement by threading into a test hole first, clean any burrs if present, and apply light lubrication to ease installation and prevent galling. Avoid overtightening to protect both screw and mating parts.
• Compatibility: these are standard M4 hex socket screws. Confirm the length suits your material thickness to ensure full thread engagement.
• Brand: Carbo — a trusted name in practical fasteners; these screws carry that legacy in a cost-effective, used format.

Note: The exact material and finish are not specified in the listing. Please review your project requirements to ensure these pre-owned screws meet your specifications before purchasing.