According to Official Guinness Records,
The longest chain of beads measures 9,520.29 m (31,234.48 ft, 5.92 miles) and was achieved by HelpHarryHelpOthers charity and the Martineau Place Shopping Centre (both UK) in Birmingham, UK, on 10 October 2014.The beads were strung on to a twine from 6 October 2014.
For a complete list of 2014 records, please visit 2014 Guinness Records in United Kingdom.