14 Wood Construction Connectors IMPORTANT ... , since the specific gravity of these wood species fall within the specific ... specific gravity for the different wood species as listed by NDS. For your ... structural quality through bolts (not lag screws) equal to or better than ASTM ... replaced. j. A fastener that splits the wood will not take the design load. Evaluate ... will perform as required. Dry wood may split more easily and should be ... evaluated as required. If wood tends to split, consider pre-boring ... nail diameter (2001 NDS 11.1.5.3). k. Wood shrinks and expands as it loses and ... perpendicular to its grain. Take wood shrinkage into account when designing ... ; contact the factory. The effects of wood shrinkage are increased in multiple ... consideration given to possible future wood shrinkage. Care should be taken to not ...
on test results using Simpsons SDS x3 screws, which are supplied with the UFP10. ... Alternate lag screws will not achieve published loads. ...