Technical Specifications

Concrete & Masonry
35
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STB / STBL Anchor Bolts
Monolithic or Stem Wall Foundations – Prior to pour, install the STB or STBL in an upright
position and at a 45° angle to the wall. Install one horizontal #4 rebar at a depth of 4" (minimum).
(See illustrations.)
Concrete Block Applications – Prior to cell pour, install the STB or STBL in an upright
position and at a 45° angle to the wall. (See illustrations.) Use the embossed angle guide
on the end of the STB or STBL shaft as a guide. Install one horizontal #4 rebar at a depth
of 4" and one vertical #4 rebar maximum 48" o.c. spacing. Fill all cells with concrete
having a minimum 2,500 psi compressive strength.
Installation:
• Select appropriate STB or STBL Anchor Bolt.
• Use normal weight concrete with minimum compressive strength of 2,500 psi.
• Minimum center-to-center spacing between bolts is 3(E) for anchors acting
simultaneously in tension.
• Match embedment depth with embedment line on the STB or STBL shaft.
• The STB or STBL does not need to be tied to the rebar.
• Nuts and washers are not included.
Mono Pour
PHD2A
TDX2-TZ
LTS20B
HTT45
HTT4
HTT16
PHD4A
HTT45
TD5
HTT45
HTT5
PHD8
UPHD8
TD7
TD9
TD12
* Recommend installation of
washer under nut of anchor bolt.
1
)
STBL model are recommended
for use with PHD and UPHD8
holdowns on
(
2
)
2x and 3x
sill plates.
USP
Stock No.
STB28
STBL28
STB16
STBL16
STB24
STBL24
2x, 3x, (2) 2x
Sill Plates
1
STB20
STBL20
Ref. No. Dia. L H Midwall Corner End Wall Midwall Corner End Wall Midwall Corner End Wall
STB16 SSTB16 6 5/8 17-13/16 5 12-13/16 4230 4230 4230 4230 4230 4230 3525 3525 3525
STB20 SSTB20 6 5/8 21-13/16 5 16-13/16 5120 4740 4740 5115 4230 4230 4265 3555 3555
STB24 SSTB24 6 5/8 25-13/16 5 20-13/16 5990 5915 5915 5990 5570 5570 4990 4675 4675
STB28 SSTB28 8 7/8 31 5 26 10100 9490 9490 9110 9110 9110 7650 7650 7650
STB34 SSTB34 8 7/8 36 6 30 11415 10525 10250 11390 10525 9405 9515 8770 7900
STB36 SSTB36 8 7/8 38 8 30 11415 10525 10250 11390 10525 9405 9515 8770 7900
STBL16 SSTB16L 6 5/8 19-9/16 6-3/4 12-13/16 4230 4230 4230 4230 4230 4230 3525 3525 3525
STBL20 SSTB20L 6 5/8 23-9/16 6-3/4 16-13/16 5120 4740 4740 5115 4230 4230 4265 3555 3555
STBL24 SSTB24L 6 5/8 27-9/16 6-3/4 20-13/16 5990 5915 5915 5990 5570 5570 4990 4675 4675
STBL28 SSTB28L 8 7/8 32-3/4 6-3/4 26 10100 9490 9490 9110 9110 9110 7650 7650 7650
1
)
Desi
g
n loads are based on the avera
g
e ultimate, from a series of five tests, with a safety factor of three.
2
)
Loads may not be increased for short term loadin
g
.
3
)
Minimum center to center spacin
g
between bolts is 3
(
E
)
for anchors actin
g
in tension simultaneously.
4
)
Minimum ed
g
e distance is 1-3/4".
5
)
Concrete stemwall shall be a minimum of 6" thick for 5/8" anchor bolts and 8" for 7/8" anchor bolts.
6
)
End distance shall be no less than 5".
7
)
Connection is limited by lowest of bolt or holdown capacity.
8
)
Concrete block shall be minimum 10" block.
9
)
See ESR-2266 for additional information.
New
p
roducts or u
p
dated
p
roduct information are desi
g
nated in blue font.
1,
F35,
R3
USP
Stock No.
Stemwall
Width
Min.
Embed. (E)
Corrosion Finish
Allowable Tension Loads (Lbs)
1,2,3
SDC A&B SDC C - F
Code
Ref.
Dimensions (in)
Wind
1) Design loads are based on the average ultimate, from a series of ve tests, with
a safety factor of three.
2) Loads may not be increased for short term loading.
3) Minimum center to center spacing between bolts is 3(E) for anchors acting
in tension simultaneously.
4) Minimum edge distance is 1-3/4".
5) Concrete stemwall shall be a minimum of 6" thick for 5/8" anchor bolts
and 8" for 7/8" anchor bolts.
6) End distance shall be no less than 5".
7) Connection is limited by lowest of bolt or holdown capacity.
8) Concrete block shall be minimum 10" block.
9) See ESR-2266 for additional information.
New products or updated product information
are designated in blue font.
Anchor Bolt Selection Table
Typical STB/STBL
concrete block installation
Plan view of STB/STBL
placement in concrete stemwall
Corrosion Finish
Stainless Steel Gold Coat
HDG Triple Zinc
Corrosion Finish Stainless Steel Gold Coat HDG Triple Zinc
Corrosion
Finish
Stainless Steel
Gold Coat
HDG
Triple Zinc
* Recommend installation of washer under nut
of anchor bolt.
1) STBL model are recommended for use with
PHD, PHDA and UPHD8 holdowns on (2) 2x
and 3x sill plates.
Corner
installation
45°
Corner
installation
135°
Outside edge
of concrete
Non-corner
installation
135°/90°/45°
0°
Concrete & Masonry