How to use these charts:

1. The following tables are for reduced Spacing.
2. Locate the anchor size to be used for either a tension and/or shear load application.
3. Locate the spacing (S_act) at which the anchor is to be installed.
4. The load adjustment factor (f_s) is the intersection of the row and column.
5. Multiply the allowable load by the applicable load adjustment factor.
6. Reduction factors for spacing are multiplied together.

Spacing Tension and Shear (f_s)

1. S_act = actual spacing distance at which anchors are installed (inches).
2. S_cr = critical spacing distance for 100% load (inches).
3. S_min = minimum spacing distance for reduced load (inches).
4. f_s = adjustment factor for allowable load at actual spacing distance.
5. f_scr = adjustment factor for allowable load at critical spacing distance. f_scr is always = 1.00.
6. f_smin = adjustment factor for allowable load at minimum spacing distance.
7. f_s = f_smin + [(1 - f_smin) (S_act - S_min) / (S_cr - S_min)].
8. 3/8" Short Drop-In (DIA37S).