Glossary of Bolting Terms

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1. Nut Body, which screws onto the bolt thread
2. Screw thread in bore nut body, made to suit individual bolts.
3. Piston, with outside buttressed screw thread to accept locking ring.
4. Locking, to retain the load when hydraulic pressure is released.
5. High pressure seals.
6. Pressure release porting.
7. High pressure inlet for nipple connection.
8. Holes for insertion of "C" spanner to nip tight nut body and locking ring.
9. Spherical washer designed to self-correct seating and bolt misalignments.

Australian and International Patents Pending. Australian Patent No. 25403/88
USA Patent No. 07/478009 Internationalal PCT/AU88/00381 and others applied for.