Tee-Head Bolt : : A bolt with a specially shaped head designed to fit in tee slots. Used for clamping jigs, tools or workpieces to machine tables and plattens
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}