Technical Design Information
Portland Bolt does not employ engineers or architects and due to liability issues, we are not in a position to provide technical assistance as to which timber connectors should be used for a specific application. According to ASTM D5933, the use of these shear plates is covered in the National Design Specification for Wood Construction available from the American Wood Council. Appendix K of the NDS contains information regarding the size of flat washer to be used with the bolt and nut when used in conjunction with shear plates.
ASTM Specifications Covering Shear Plates
|D5933||Standard specification for 2-5/8” and 4” diameter metal shear plates for use in wood constructions.
|A47 Grade 32510||Specification for Ferritic Malleable Iron Castings
|A153||Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
|A570||Withdrawn Specification for steel sheet and strip, carbon, hot-rolled