Brass Battery Terminals — Positive 17.5 mm / Negative 16.5 mm Key benefits Reliable electrical connection: Solid brass construction delivers excellent electrical conductivity for consistent power transfer. Long-lasting durability: Brass material resists corrosion and wear, reducing maintenance and terminal replacement frequency. Safer, faster identification: Housings are color-coded—red for positive, black for negative—so you can connect correctly and reduce the risk of accidental shorts. Tool-free cable changes: Color-coded wing nuts allow quick cable replacement without a wrench, keeping wiring stable and preventing accidental disconnection. What it does and why you need it Provides secure, durable connection points for a vehicle battery’s positive and negative posts. Simplifies battery maintenance and upgrades by making terminal swaps and cable additions fast and reliable. Helps avoid electrical mistakes with clear polarity marking, improving safety during installation and servicing. Features and specifications Material: Brass — strong, corrosion-resistant, and highly conductive. Size: Positive terminal connector diameter 17.5 mm; Negative terminal port diameter 16.5 mm. Designed to install on the battery’s positive and negative poles as specified. Identification: Red housing for positive, black housing for negative for immediate polarity recognition. Wing nut: Color-coded wing nut for quick, secure cable fastening without tools; ensures stable wiring that resists loosening. Compatibility and use Fits standard vehicle battery posts matching the listed diameters; intended for installation on the battery’s positive and negative poles. Suitable for routine battery terminal replacement, wiring repairs, and adding accessory cables where matching terminal diameters are used. Practical applications Replacing corroded or loose factory terminals on cars or light trucks to restore reliable starting and charging. Installing or upgrading aftermarket accessories (audio amplifiers, lighting) where additional secure cable attachment is required. Quick service and maintenance in a garage or roadside situation when fast, tool-free cable changes are needed. Installation tips Confirm your battery post diameters match 17.5 mm (positive) and 16.5 mm (negative) before purchase. Attach the correct color-coded terminal to the matching battery pole: red to positive, black to negative. Tighten wing nuts by hand for a secure connection; check periodically to ensure wiring remains stable. This terminal set delivers the essential combination of conductivity, corrosion resistance, clear polarity marking, and easy cable access for dependable battery connections.