LENTON® LOCK, an in-situ rebar splice from ERICO, requires no bar-end preparation. It is ideal for repair, new construction, or retrofit applications. The LENTON LOCK coupler features patented gripping technology that provides for the development of full rebar strength and improved overall structural integrity in tension, compression, stress-reversal and dynamic applications. This unique design allows the coupler to be smaller and more streamlined.
LENTON LOCK couplers allow for easy and simple field installation since no bar-end preparation, sawing or swaging is necessary. The couplers can be installed with just a standard wrench, nut runner or an impact wrench depending on coupler size. The bolt heads will shear off when proper installation tightness has been reached, which allows for complete visual inspection. The rebar centering pin is removable which allows the coupler to full pass onto the bar for applications such as closure pours (see PDF113 below).
LENTON LOCK is designed to work as a one-step transition/reducer splice. Contact ERICO for multi-step transition capability.
Features
Meets or exceeds major international building code and Department of Transportation requirements
Uses standard rebar; requires no bar-end preparation such as sawing or swaging and is ideal for in-situ splices
Is smaller than other bolted splices currently available
Performs like a continuous piece of rebar
Works in repair, bent bar, retrofit, precast and new construction applications
Provides superior fatigue performance
Works with a variety of standard US and international rebar grades
Installs quickly and easily using simple hand tools and does not require special skilled labor
Allows for simple visual inspection
Epoxy and mechanical galvanized coatings available in North America
Product Performance – LENTON LOCK B-Series is designed to meet or exceed: AASHTO® ACI® 318 Type 1 (125% Specified Yield) ACI 318 Type 2 (Specified Ultimate) AS3600 BS5400 BS EN1992-1-1 Caltrans Service Caltrans Ultimate DIN EN 1992-1-1 IBC® Type 1 & 2 NZ 3101 Sellafield Ltd. Std. A.0391_1 NEN-EN 1992-1-1 NF A 35-020-1 ÖNORM EN 1992-1-1 US Army Corps of Engineers
Contact ERICO for specifications not listed
Applications
This innovative mechanical rebar splice is designed to specification for use in column splicing, bridge applications, piling, splicing to protruding dowels cast in concrete, closure pours, beams, chimney construction and other demanding splicing applications.
More Information
Simple 1-2-3 Installation:
1.Insert the LENTON LOCK coupler over reinforcing bar.
2.Tighten bolts from the center to the end to secure onto the first reinforcing bar. (Air impact wrench shown*)
3.Repeat steps 1 & 2 with the second reinforcing bar on the other side of the coupler.
This cutaway shows LENTON LOCK's patented gripping technology on the inside of the coupler and patented round bolts on the outer edges of the coupler.
LENTON LOCK, with its patented round end bolts, is designed to break the reinforcing bar remote from the rebar connector in accordance with Ultimate Splice requirements.
End view of coupler
*Contact ERICO for a list of recommended impact wrenches and sockets.
Product Specifications, Imperial
Rebar Designation
Coupler Part Number
Length (L)
Outside Diameter (d) (a)
Inside Diameter
Weight (a)
Socket Size
Average Torque All Bolts
Number of Bolts
Inch-Lb
Canada
in
in
in
lb
in
ft-lb
#3
-
LL12B1
5.0
1.25
0.6
1.5
1/2
150
6
#4
10 M
LL12B1
5.0
1.25
0.6
1.5
1/2
150
6
#5
15 M
LL16B1
6.3
1.38
0.8
2.0
1/2
150
6
#6
20 M
LL20B1
7.5
1.75
0.9
3.8
1/2
150
8
#7
-
LL22B1
8.7
1.88
1.1
4.9
5/8
250
8
#8
25 M
LL25B1
10.0
2.13
1.2
7.4
5/8
350
8
#9
30 M
LL28B1
11.3
2.38
1.3
10.2
5/8
350
10
#10
-
LL32B1
12.7
2.50
1.5
12.2
13/16
500
8
#11
35 M
LL36B1
14.1
2.75
1.7
15.8
13/16
550
10
#14
45 M
LL43B1*
20.6
3.5
2.1
37.4
1
960
14
#18
55 M
LL57B1*
26.1
4.5
2.6
80.6
1
960
18
(a) Product produced from standard imperial material diameters (inch). * Two round bolts per end.
Product Specifications, Metric
Rebar Designation
Coupler Part Number
Length (L)
Outside Diameter (d) (b)
Inside Diameter
Weight (b)
Socket Size
Average Torque All Bolts
Number of Bolts
Metric
Soft Metric
mm
mm
mm
kg
mm
N-m
10
10
LL12B1
127
29
15
0.6
13
205
6
12
13
LL12B1
127
29
15
0.6
13
205
6
14
-
LL16B1
159
35
19
0.9
13
205
6
16
16
LL16B1
159
35
19
0.9
13
205
6
18
-
LL20B1
191
44
24
1.7
13
205
8
20
19
LL20B1
191
44
24
1.7
13
205
8
22
22
LL22B1
222
48
28
2.3
16
340
8
25
25
LL25B1
254
54
30
3.4
16
475
8
28
29
LL28B1
287
60
34
4.6
16
475
10
30
-
LL28B1
287
60
34
4.6
16
475
10
32
32
LL32B1
323
65
38
5.9
21
680
8
34
-
LL36B1
358
72
43
7.8
21
750
10
36
36
LL36B1
358
72
43
7.8
21
750
10
38
-
LL40B1
400
80
47
10.9
21
790
12
40
-
LL40B1
400
80
47
10.9
21
790
12
43
43
LL43B1*
523
89
53
17.0
25
1300
14
57
57
LL57B1*
662
117
67
39.0
25
1300
18
(b) Product produced from standard metric material diameters (mm). * Two round bolts per end. NOTES
Dimensions shown in chart are typical. Bolt length may vary after the bolt heads are sheared off.
When using air impact wrench, check the air pressure, torque rating and air flow requirements before starting installations.
It is reccommended to use an impact wrench rated 2X the bolt torque. Contact ERICO for additional tool recommendations.
Bolt heads are not required to be removed if the appropriate bolt torque is achieved.
Refer to complete installation instructions provided with the product or available at www.erico.com before commencing installation.
Patent no. 7,107,735 / 7,093,402. Additional patents in other countries.
AASHTO is a registered trademark of the American Association of State Highway and Transportation Officials. ACI is a registered trademark of the American Concrete Institute. IBC is a registered trademark of the International Code Council, Inc.
WARNING
ERICO products shall be installed and used only as indicated in ERICO's product instruction sheets and
training materials. Instruction sheets are available at www.erico.com and from your ERICO customer service
representative. Improper installation, misuse, misapplication or other failure to completely follow ERICO's
instructions and warnings may cause product malfunction, property damage, serious bodily injury and death.
WARRANTY
ERICO products are warranted to be free from defects in material and workmanship at the time of shipment.
NO OTHER WARRANTY, WHETHER EXPRESS OR IMPLIED (INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE), SHALL EXIST IN CONNECTION WITH THE SALE OR USE OF ANY ERICO PRODUCTS. Claims for errors,
shortages, defects or nonconformities ascertainable upon inspection must be made in writing within 5 days
after Buyer's receipt of products. All other claims must be made in writing to ERICO within 6 months from the
date of shipment or transport. Products claimed to be nonconforming or defective must, upon ERICO's prior
written approval in accordance with its standard terms and procedures governing returns, promptly be returned
to ERICO for inspection. Claims not made as provided above and within the applicable time period will be
barred. ERICO shall in no event be responsible if the products have not been stored or used in accordance
with its specifications and recommended procedures. ERICO will, at its option, either repair or replace
nonconforming or defective products for which it is responsible or return the purchase price to the Buyer.
THE FOREGOING STATES BUYER'S EXCLUSIVE REMEDY FOR ANY BREACH OF ERICO WARRANTY AND FOR ANY CLAIM, WHETHER
SOUNDING IN CONTRACT, TORT OR NEGLIGENCE, FOR LOSS OR INJURY CAUSED BY THE SALE OR USE OF ANY PRODUCT.
LIMITATION OF LIABILITY
ERICO excludes all liability except such liability that is directly attributable to the willful or gross
negligence of ERICO's employees. Should ERICO be held liable its liability shall in no event exceed the
total purchase price under the contract. ERICO SHALL IN NO EVENT BE RESPONSIBLE FOR ANY LOSS OF BUSINESS OR
PROFITS, DOWNTIME OR DELAY, LABOR, REPAIR OR MATERIAL COSTS OR ANY SIMILAR OR DISSIMILAR CONSEQUENTIAL LOSS
OR DAMAGE INCURRED BY BUYER.
Due to a policy of continued product development, specifications are subject to change without notice.
CADDY, CADWELD, CRITEC, ERICO, ERIFLEX, ERITECH, and LENTON are registered trademarks of ERICO
International Corporation.
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