Hexagon head bolts, screws and nuts of product grades A and B: Part 5 hexagon thin nuts - Product grade B (Unchamfered) (Size Range M 1.6t0 M 10) (Fourth Revision)
Pulleys - V - Grooved pulleys for endless V - Belts sections 2, A, B, C, D and e and endless wedge belts sections SPZ, SPA, SPB and SPC - Specification (Second Revision)
Tractors and Machinery for Agriculture and Forestry, Powered Lawn and Garden Equipment - Operator's Manuals - Content and Presentation (First Revision)