Datadart Signature Nylon Shafts – Strong Nylon Dart Shafts. Includes Springs. Length: 48mm; (does not include thread – 5mm) Thread: 2ba Datadart Signature Nylon Shafts – Stems with Springs – BlueDatadart Signature Nylon Shafts – Strong Nylon Dart Shafts. Includes Springs. Length: 41mm; (does not include thread – 5mm) Thread: 2baDatadart Signature Nylon Shafts in Short Blue with Springs. Datadart Signature Nylon Shafts are high-quality dart shafts designed for professional and recreational players alike. Made from durable nylon, these shafts are lightweight, flexible, and built to last.