ERICO S-Series LENTON LOCK - Manual (Page 2)

INSTRUCTION SHEET
TECHNICAL SUPPORT: PDF121_G 2 of 2

2009,2010,2012,2014 ERICO International Corporation
www.erico.com
Table 1. Torque values for coupler sizes 12(#4) through 36(#11)
Pre-Torque is not required for these sizes
Coupler
Number of
Bolts
In-lb Metric Canada
Soft
Metric
in mm ft-lb N-m
- 10 - 10 LL12S1 1/2 13 150 205 4
#4 12 10 M 13 LL12S1 1/2 13 150 205 4
- 14 - - LL16S1 1/2 13 150 205 4
#5 16 15 M 16 LL16S1 1/2 13 150 205 4
- 18 - - LL20S1 1/2 13 150 205 6
#6 20 20 M 19 LL20S1 1/2 13 150 205 6
#7 22 - 22 LL22S1 5/8 16 250 340 6
#8 25 25 M 25 LL25S1 5/8 16 350 475 6
#9 28 30 M 29 LL28S1 5/8 16 350 475 8
- 30 - - LL28S1 5/8 16 350 475 8
#10 32 32 LL32S1 13/16 21 550 750 6
- 34 - - LL36S1 13/16 21 550 750 8
#11 36 35 M 36 LL36S1 13/16 21 550 750 8
Rebar Designation Socket Size
Average Torque to
Shear Bolts
Alternate Step 4:
For sizes 43 (#14) and 57 (#18) a two-step torque sequence is required.
Using a nut runner, pre-torque the bolts beginning in the center of the coupler and working to the outside (A to C) using pre-torque values in
table 2. Then go back to bolt A and finish tightening the bolts, once again beginning in the center of the coupler and working to the outside (A
to C), until bolt heads shear off. A nut runner must be utilized for the final tightening of the bolts.
Table 2. Alternate Step 4: Two-step torque sequence for coupler sizes 43(#14) and 57(#18)
Pre-Torque the bolts to the specified torque before final tightening.
Coupler
Number of
Bolts
In-lb Metric Canada
Soft
Metric
in mm ft-lb N-m ft-lb N-m
#14 43 45M 43 LL43S1 13/16 21 500 680 660 900 12
#18 57 55M 57 LL57S1 1 25 750 1020 960 1300 14
Rebar Designation Socket Size
Pre Torque
All Bolts
Average Torque to
Shear Bolts
If bolt head does not shear, the installer should verify the appropriate torque was met (see Table 2). If a minimum cover must be maintained,
the head can be cut off after the proper torque has been applied.
If during installation the bolt strips, as defined by a loss of resistance to the applied torque, stop the installation immediately. Remove the un-
sheared damaged bolt. Contact ERICO for LENTON
 Technical Support
Repeat procedure for other end of the sleeve.
Transition Splices: LENTON  LOCK is designed for use as a one-step transition/reducer splice on all type of rebar.
Contact ERICO for details.
Closure Pour Splices: Refer to instruction sheet PDF113 for details. Additional copies of instructions and application
information are available at www.erico.com