About

About Just In Fitting Just In Hardware (JIH), founded in 2005 in Taiwan, is a trusted manufacturer and exporter of DOT/SAE/DIN/ISO-compliant air brake fittings and tanks for heavy-duty trucks and trailers. With over 30 years of engineering experience, we specialize in brass fittings, nylon tubing, rubber hoses, tire gauges, air chucks, SAE J10 aluminum air tanks, bead seaters, and custom OEM parts. Backed by ISO9001:2015 certification, we ensure consistent quality through full dimensional layouts, PPAP, FMEA, SPC, and product liability insurance. Our mission is to help customers succeed by delivering on spec, on time, and at a competitive price. We’re known for responsive service, value-added support, and fast problem-solving within 24 hours. JIH is committed to excellence, offering reliable products and tailored solutions that meet global customer demands. Let’s grow together—contact us to start building success.