The SSTB anchor bolt is designed for maximum performance as an anchor bolt for holdowns and Simpson Strong-Tie® Strong-Wall® shearwalls. Extensive testing has been done to determine the design load capacity of the SSTB when installed in many common applications.
The Simpson Strong-Tie SSTB anchor bolts are code listed by ICC-ES under the 2012, 2015, 2018 and 2021 IBC® and IRC®.
Identification on the bolt head showing embedment angle and model
Offset angle reduces side bursting, and provides more concrete cover
Rolled thread for higher tensile capacity
Stamped embedment line aids installation
Available in HDG for additional corrosion resistance
ASTM F-1554, Grade 36
None. May be ordered HDG; contact Simpson Strong-Tie.
SSTB is suitable for monolithic and two-pour concrete applications.
Nuts and washers for holdown attachment are not supplied with the SSTB; install standard nuts, couplers and/or washers as required.
On HDG SSTB anchors, chase the threads to use standard nuts or couplers or use overtapped products in accordance with ASTM A563, for example Simpson Strong-Tie NUT5/8-OST, NUT7/8-OST, CNW5/8-OST, CNW7/8-OST.
Install SSTB before the concrete pour using AnchorMate® anchor bolt holders. Install the SSTB per the plan view detail.
Minimum concrete compressive strength is 2,500 psi.
When rebar is required it does not need to be tied to the SSTB.
Order SSTBL models (example: SSTB16L) for longer thread length (16L = 5 1/2", 20L = 6 1/2", 24L = 6", 28L = 6 1/2"). SSTB and SSTBL load values are the same. SSTB34 and SSTB36 feature 4 1/2" and 6 1/2" of thread respectively and are not available in "L" versions.
GFCMU (Grout-Filled Concrete Masonry Units)
One horizontal #4 rebar in the second course.
One vertical #4 rebar in adjacent cell for 5/8"-diameter SSTB.
One vertical #4 rebar in an adjacent cell and additional vertical #4 rebar(s) at 24" o.c. max. for 7/8"-diameter SSTBs (2 total vertical rebars for end wall corner, 3 total vertical rebars for midwall).
For two-pour (4" slab) installation loads:
When using the SSTB20, use the equivalent loads of the SSTB16.
When using the SSTB24, use the equivalent loads of the SSTB20.
When using the SSTB34 or 36, use the equivalent loads of the SSTB28.