The phrase “the devil is in the details” applies to anchor bolt design in masonry structures. The anchorage of masonry members is essential both for load transfer into the member and for stability and support of the member. There are typically two types of anchors used in masonry. Cast-in-place anchors, or anchor bolts, are generally designed using TMS 402 Building Code Requirements for Masonry Structures. Post-installed anchors are generally designed based on manufacturers’ data, with the design capacities of the anchors determined through International Code Council (ICC) Evaluation Service reports. This article focuses on anchor bolt design and, particularly, several recent revisions in the 2016 version of TMS 402 that will help with the design of anchor bolts.