Color Aluminum Alloy Flared-Collar Knurled-Head Thumb Screws M6 Metric 14-50mm

These screws use a standard M6 metric coarse thread with a 1.0 mm pitch. They are compatible with any M6-threaded insert, T-nut, or tapped hole machined to ISO metric coarse tolerances.

As a general guide: M6×14 mm suits panels up to approximately 6–8 mm thick with a standard nut or insert; M6×16 mm works well for panels in the 8–10 mm range; M6×20 mm is appropriate for thicker panels or applications requiring deeper thread engagement. Measure your panel thickness and add the required thread engagement depth (typically 1–1.5× the thread diameter, so 6–9 mm for M6) to determine the correct length.

Aluminum alloy thumb screws are rated at Grade 5 equivalent tensile strength for their size, which is adequate for panel fastening, enclosure access, and light fixture applications. They are not intended for high-torque structural joints or vibration-critical load-bearing connections where steel fasteners are specified. For hand-tightened panel applications, aluminum provides sufficient clamping force while saving weight.

Yes. Anodizing creates an aluminum oxide layer that is harder than bare aluminum and provides meaningful corrosion resistance in indoor and light outdoor environments. The anodized layer also seals the color into the surface rather than sitting on top as paint would, so it resists chipping and scratching under normal use. For marine or highly corrosive environments, additional protection or stainless steel fasteners should be considered.

Yes, provided you use the appropriate M6 T-nut or drop-in nut for your extrusion profile. Standard 3030 and larger extrusion profiles accept M6 T-nuts directly. For 2020 profiles, verify the slot width accepts an M6 T-nut before ordering. The flared collar on these screws seats neatly against the extrusion face for a clean finish.

Color selection is typically functional or aesthetic. For color-coded assembly identification (e.g., different colors per axis or per panel zone), choose distinct hues such as Red, Blue, and Green. For a clean, professional look on black anodized frames, Black or Silver thumb screws blend well. Golden and Orange work well as accent fasteners on natural aluminum builds. All colors are anodized to the same dimensional and mechanical specification — color does not affect thread fit or clamping performance.

For prototyping or single-unit builds, the 1-piece or 5-piece packs let you validate fit before committing. For small batch production (5–20 units), the 20-piece or 50-piece packs offer better per-unit value. For larger runs, the 70-piece and 80-piece packs provide the lowest per-piece cost. Mix colors and lengths across separate line items to match your exact BOM requirements.