CPC Subgroup
F16B 35/06 Specially-shaped heads (special shape in order to rotate the bolt F16B23/00 )
Full Title
Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws (; thread cutting screws F16B25/00) > with specially-shaped head or shaft in order to fix the bolt on or in an object (locking the bolt against turning in the object by the use of accessory parts F16B39/00) > Specially-shaped heads (special shape in order to rotate the bolt F16B23/00 )
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