Cross-linked gamma-chains in fibrin fibrils bridge 'transversely' between strands: yes.
Mosesson
M W
MW
The Blood Center of Southeastern Wisconsin, Milwaukee, WI, USA.
D005337:Fibrin / Q000737:chemistry* / Q000648:ultrastructure; D006801:Humans; D046911:Macromolecular Substances; D008854:Microscopy, Electron; D008958:Models, Molecular; D014961:X-Ray Diffraction
D046911:Macromolecular Substances; D005337:Fibrin