F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/4
F16B 31/02 (2006.01) F16B 39/282 (2006.01)
Patent
CA 1247407
Abstract Of The Disclosure A shear-resistant fastener for attaching an aper- tured plate to a member having an internally threaded bore. Ribs and grooves are provided on the fastener and plate, and mating of the ribs and grooves occurs when the fastener is substantially fully received in the threaded bore. Continued rotation of the fastener is thus resist- ed by this mating, which also gives an indication to the operator to cease further rotation which is likely to shear, e.g., the head from the shank of the fastener. In a first embodiment, the fastener carries the ribs and has a threaded shank, and the plate carries the grooves. In a second embodiment, the fastener is initially thread- less, but rotation into the threaded bore forms the threads. In a third embodiment, the fastener carries the grooves while the plate carries the ribs. Both the fastener and the plate can be made of polymeric material.
453742
Harvey Hubbell Incorporated
Meredith & Finlayson
LandOfFree
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