The Concrete Reinforcing Steel Institute (CRSI) represents a number of industry members with competing products that accomplish the same thing. When they put out information they need to make sure they do not favor any one members products. To achieve that goal they wanted black and white vector illustrations that could be easily utilized and sized in their Design Guide for Anchorages & Splices Manual. The connection illustrations needed to be be generic enough not to identify any single member's product line but be recognizable enough for engineers to be able to identify the type of connection. The bold stylized thick and thin approach maintains the accuracy to the differing connection types without getting too specific to any single product.
