| | CLASS NOTES |
| 1 | DF | TORQUE RESPONSIVE NUT OR BOLT DRIVING CONNECTION {2} |
| 8 | DF | WITH MEANS TO INDICATE APPLICATION OF PREDETERMINED STRESS-STRAIN {3} |
| 14.5 | DF | TENSIONED ALONG THE LONGITUDINAL AXIS BY A COAXIAL FORCE APPLYING DEVICE (E.G., MECHANICAL TENSIONER) |
| 15 | DF | HAVING SEPARATE EXPANDER MEANS {13} |
| 82 | DF | MADE, MODIFIED, OR PREPARED FOR SETTABLE MATERIAL {3} |
| 82.5 | DF | TEMPERATURE SENSITIVE OR RESPONSIVE |
| 81 | DF | THREADED FASTENER LOCKED TO A DISCREET STRUCTURE (E.G., PLATE, RAIL, WHEEL) {13} |
| 190 | DF | HAVING STRUCTURE TO RESTRICT ROTATION OF THREADED, MATING PIECES (E.G., NUT LOCK) {13} |
| 337 | DF | HEADED FASTENER ELEMENT WITH NUT, WASHER, SECURING MEANS OR CAP {12} |
| 378 | DF | EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC. {16} |
| 427 | DF | INTERNALLY THREADED FASTENER ELEMENT, E.G., NUT, ETC. {5} |
| 439 | DF | IMPACT DRIVEN FASTENER, E.G., NAIL, SPIKE, TACK, ETC. {13} |
| 500 | DF | HEADED FASTENER ELEMENT {2} |
| 511 | DF | FASTENER SECURING ELEMENT {3} |
| 531 | DF | WASHER STRUCTURE {11} |
| 548 | DF | MISCELLANEOUS |
| | ****************************** |
| | CROSS-REFERENCE ART COLLECTIONS |
| | ****************************** |
| 900 | DF | FASTENER OR FASTENER ELEMENT COMPOSED OF PLURAL DIFFERENT MATERIALS {1} |
| 904 | DF | FASTENER OR FASTENER ELEMENT COMPOSED OF NONMETALLIC MATERIAL {4} |
| 909 | DF | FASTENER OR FASTENER ELEMENT COMPOSED OF THERMO-RESPONSIVE MEMORY MATERIAL |
| 910 | DF | ANTITAMPER MEANS {1} |
| 912 | DF | ANTISPLITTING FASTENER |
| 913 | DF | SELF-EXPANDING ANCHOR |
| 914 | DF | COATED BOLT |
| 915 | DF | BOLT HAVING PACKING JOINT |
| 916 | DF | BOLT HAVING TENSION FEATURE |
| 917 | DF | NUT HAVING TENSION FEATURE |
| 918 | DF | THREADLESS NUT |
| 919 | DF | SCREW HAVING DRIVING CONTACTS |
| 920 | DF | STAPLE |
| 921 | DF | MULTIPLE-PRONGED NAIL, SPIKE OR TACK |
| 922 | DF | NAIL, SPIKE OR TACK HAVING LOCKING DEVICE |
| 923 | DF | NAIL, SPIKE OR TACK HAVING SPECIFIC HEAD STRUCTURE |
| 924 | DF | COUPLED NUT AND BOLT {13} |
| 955 | DF | LOCKED BOLTHEAD OR NUT {7} |
| 998 | DF | WITH POSITIVE BOLT LOCK |
| 999 | DF | WITH RETAINER (E.G., TETHER) |
| | ****************************** |
| | DIGESTS |
| | ****************************** |
| DIG 1 | DF | THREAD FORMING, REFORMING, OR CLEANING |
| DIG 2 | DF | TEMPERATURE MODIFICATION |
| DIG 3 | DF | UTILIZING FLUID PRESSURE |
