M4-0.70 Zinc Plated Steel Semi-Flanged Knurled-Head Thumb Nut

M4 × 0.70 zinc-plated steel knurled thumb nut for tool-free adjustments on printer panels, brackets, jigs, and other hardware where a standard hex nut is awkward to reach. Why use a knurled thumb nut Raised knurled head gives finger grip for repeat adjustments without a wrench. Semi-flanged collar spreads load better than a plain round thumb nut and helps cover oversized or irregular holes. Zinc-plated steel is a practical dry-environment choice when you want a tougher metal nut without paying stainless prices. Specifications Thread: M4 × 0.70 mm metric coarse Head diameter: 12 mm Material: zinc-plated steel Style: semi-flanged knurled-head thumb nut, internally threaded Use it for Hand-tightened printer enclosure panels, brackets, spool holders, stops, and service-access hardware. Fixtures or printed parts that need repeated removal without loose tools. Same fastener family as the live M3 black zinc-plated thumb nut and M3 stainless thumb nut. What it is not Not a lock nut; add threadlocker or a locking fastener if vibration resistance is required. Not stainless steel; choose stainless for wet, corrosive, or cosmetic applications. Not a screw or bolt — this is the mating nut for an M4 × 0.70 threaded fastener.