Specification

ESR-1078
|
Most Widely Accepted and Trusted Page 7 of 8
TABLE 4—REFERENCE LATERAL DESIGN VALUES (Z) FOR SINGLE SHEAR (TWO-MEMBER) WOOD-TO-WOOD CONNECTIONS
LOADED PARALLEL (Z
ll
) OR PERPENDICULAR (Z

) TO THE GRAIN
1,2
FASTENER
MINIMUM SIDE
MEMBER
THICKNESS
3
,
t
s
(
inches
)
MINIMUM MAIN
MEMBER
PENETRATION
4
,
p
(
inches
)
Z (lbf) FOR MINIMUM SPECIFIC GRAVITIES OF:
Designation
Length
(inches)
0.5 0.46 0.42
Z
ll
Z

Z
ll
Z

Z
ll
Z

OlyLog/
TimberLOK
2
1
/
2
1
1
/
2
1 240 220 220 200 200 180
4 & longer 1
1
/
2
2
1
/
2
280 260 260 230 240 210
6 & longer 2
1
/
2
3
1
/
2
290 270 270 250 250 230
8 & longer 3 5 290 270 260 250 240 230
HeadLOK
2
7
/
8
1
1
/
2
1
3
/
8
240 210 220 180 210 150
4
1
/
2
1
1
/
2
3 280 260 260 240 250 220
6 & longer 1
1
/
2
4
1
/
2
290 270 270 250 250 230
6 & longer 2
1
/
2
3
1
/
2
300 280 280 260 270 240
8 & longer 3 5 290 280 280 260 260 230
LedgerLOK
3
5
/
8
1
1
/
2
1
1
/
2
— 260 — 220 — 220
3
5
/
8
1
1
/
2
2
1
/
8
310 310 290 280 270 250
5 1
1
/
2
3
1
/
2
320 300 300 280 280 260
LogHog 9 & longer 6 3 310 300 290 280 270 260
TrussLOK
3
3
/
8
1
3
/
4
1
5
/
8
320 290 300 270 280 260
5 1
3
/
4
3
1
/
4
330 300 310 270 290 250
6
3
/
4
1
3
/
4
5 330 310 310 290 290 270
TrussLOK-Z
2
7
/
8
1
1
/
2
1
3
/
8
310 290 300 270 280 240
4
1
/
2
1
1
/
2
3 320 290 300 270 290 250
6 1
1
/
2
4
1
/
2
330 300 310 280 290 250
FASTENER
MINIMUM SIDE
MEMBER
THICKNESS
3
,
t
s
(inches)
MAIN MEMBER
THICKNESS
5
(inches)
Z (lbf) FOR MINIMUM SPECIFIC GRAVITIES OF:
Designation
Length
(inches)
0.5 0.46 0.42
Min Max Z
ll
Z

Z
ll
Z

Z
ll
Z

ThruLOK
(5)
6
1
/
4
1
1
/
2
3
1
/
4
4
1
/
4
350 320 320 300 300 270
7 1
1
/
2
4 5 350 330 320 300 300 270
8 3 3
1
/
2
4
1
/
2
350 330 320 300 300 270
For SI: 1 inch = 25.4 mm, 1 pound = 4.448 kPa.
1
Tabulated reference lateral design values, Z, apply to single shear (two-member) connections with wood main and side members having
specific gravity as shown, in which the screw is oriented perpendicular to the grain and loaded laterally either parallel or perpendicular to the
grain. For connections in which the main and side members have different specific gravities, use the lower of the two. Gaps are not permitted
between the main and side members.
2
Values must be multiplied by all applicable adjustment factors, in accordance with Section 4.1.
3
Side members with thicknesses greater than the tabulated minimum side member thickness may be used, provided the corresponding
tabulated minimum main member penetration is still achieved for the given screw length.
4
Minimum main member penetration is the minimum length of the screw (including threaded, unthreaded and tip length) that must be
embedded within the main member.
5
The ThruLOK must be installed with the washer and nut, and must penetrate through the opposite face of the main member a sufficient
distance to allow the nut to be tightened snugly against the main member, with at least
1
/
2
inch, and no more than 1
1
/
2
inches of the ThruLOK
screw engaged within the nut.