B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
B25B 23/00 (2006.01) B25B 13/06 (2006.01) B25B 15/00 (2006.01) F16B 23/00 (2006.01)
Patent
CA 2113387
A fastener head recess having a pair of radial slots formed in the head, a ledge in each recess being located a short distance axially below the head surface and extending a predetermined angular length from the axial portion o f the ledge. The dimension of the ledge is adjustable to accommodate the strength of fastener material in a manner such that the displacement formation of recess material on the surface of the fastener head is prevented during normal installation procedures. The drive angle on the recess is designed to be zero degrees.
Huck Patents Inc.
Riches Mckenzie & Herbert Llp
Vsi Corporation
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