Rubber M5 Well Nut for motorcycle windscreens, fairings and cowls Overview A simple, reliable replacement well nut designed to accept M5 x 0.8 bolts and secure windscreens, body panels and other plastic or thinsheet components. The captive brass nut and flexible rubber body provide secure fastening while absorbing vibration and protecting mounting holes from damage. Key benefits Secure mounting: expands and locks behind the panel as the M5 bolt is tightened, creating a firm hold for windscreens and fairings. Vibration damping: rubber body reduces vibration and stress on plastic panels, helping prevent cracking and loosening. Corrosion resistance where it matters: captive brass nut resists seizing and provides reliable threaded engagement. Easy replacement: designed as a direct swap for worn or missing M5 well nuts, simple pushin installation and bolt tightening. Universal fit: fits most motorcycle and ATV windscreen, body and accessory mounting applications that use M5 fasteners. Features and specifications Condition: , never mounted Material: rubber with captive brass nut Color: Black Thread: M5 x 0.8 mm (accepts M5 bolt) Inner diameter: 5 mm Approximate outer diameter: 10 mm Head diameter: 13 mm (0.51 inch) Overall length: 14 mm (0.55 inch) Shank length: 13 mm (0.51 inch) Shank diameter: 9.5 mm (0.37 inch) Head thickness: 1.0 mm (0.50 inch) Typical applications worn well nuts when refitting a motorcycle windscreen. Secure fairings, cowls and body panels on motorcycles and ATVs. Mount small accessories to plastic or thinsheet panels where a captive nut and vibration isolation are required. Installation tip Push the rubber shank into a hole sized to match the shank diameter, insert the M5 bolt and tighten until the rubber compresses and the nut pulls tight. Avoid overtightening to prevent damage to the panel. Package included 1 set of nuts