Figure 8-44. - Shear plate and shear-plate joints.

Figure 8-45. - Toothed ring and toothed-ring joints.

Figure 8-46. - Embedding toothed rings.

high-tensile strength bolt, as shown in figure 8-46. The hole for this bolt is drilled slightly larger than the bolt diameter so that the bolt may be extracted after the toothed ring is embedded. The spike grid is used as shown in figure 8-47. A spike grid may be flat (for joining flat surfaces), single-curved (for joining a flat and a curved surface), or double-curved (for joining two curved surfaces). A spike grid is embedded in the same manner as a toothed ring.

Tools used in heavy construction are covered in the Use

and Care of Hand Tools and Measuring Tools, NAVEDTRA 12085. In the Table of Allowance (TOA), you will find certain kits that can be used such as the following:

Figure 8-47. - Spike grids and spike-grid joints.