CALTRANS AUTHORIZED LIST OF COUPLERS FOR REINFORCING STEEL

CALTRANS AUTHORIZED LIST OF COUPLERS FOR REINFORCING STEEL

Last edit date: 8/24/2021

Mechanical Couplers on ASTM A 706 (Grade 60) Reinforcing Steel - For Straight Bars

Type of Splice Manufacturer / Supplier Coupler Model Caltrans Coupler
Unique ID
Authorized Service Splice
(Bar Sizes)
Authorized Ultimate Butt Splice
(Bar Sizes)
Expiration Date
Side-by-Side (Mechanical Lap Splice)BarSplice Products Incorporated
Dayton, OH 45414
Double Barrel ZAP Screwlok Standard Coupler SB-17-02 #4, #5, #6, #7, #8 - 10/29/2021
Headed Reinforcement Corporation
Fountain Valley, CA 92708
HRC 626 SB-21-01 #4, #5, #6 - 4/28/2023
Sleeve ThreadedBarSplice Products Incorporated
Dayton, OH 45414
Barsplicer XP System STD-20-01 #4, #5, #6, #7, #8, #9, #10, #11 - 12/31/2022
Sleeve-Filler Grout CouplerERICO International Corporation (nVent)
Solon, OH 44139
LENTON INTERLOK Rebar Splice System (taper threaded) SG-17-02 #8 #8 Expired on 5/28/2021
Splice Sleeve North America, Inc.
Livonia, MI 48152
NMB SG-17-01 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 - 9/30/2021
Sleeve-Filler MetalERICO International Corporation (nVent)
Solon, OH 44139
CADWELD SM-17-01 #8, #18 - 12/31/2021
Sleeve-ForgedDayton Superior
Dayton, OH 45459
DB/DI SF-17-01 #4, #5, #6, #7, #8, #9, #10, #11 #4, #5, #6, #7, #8, #9, #10, #11 9/30/2021
Dextra America Incorporated
Simi Valley, CA 930651574
Bartec Position Splice (Type B) SF-17-03 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 11/1/2021
Bartec Position Splice (Type C) SF-17-04 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 11/1/2021
Bartec Standard Splice (Type A) SF-17-02 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 11/1/2021
Sleeve-Lock Shear BoltsBarSplice Products Incorporated
Dayton, OH 45414
Double Row ZAP Screwlok Type 2 Series (Standard) SL-17-04 #4, #8, #14, #18 - 9/30/2021
Zap ScrewLok SL SL-21-02 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 - 4/5/2023
ZAP Screwlok Type 2 Series (Standard) SL-17-03 #4, #5, #6, #7, #8, #9, #10, #11 - 9/30/2021
Dayton Superior
Dayton, OH 45459
Bar-Lock L Series D250L SL-17-06 #3, #4, #5, #6, #7, #8, #9, #10, #11 - 11/1/2021
Bar-Lock L Series D250L (20 bolts) * Product Discontinued SL-17-07 #14 - Expired on 8/2/2021
Bar-Lock S/CA Series - D250SCA (formerly S-series) SL-17-01 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 - 11/1/2021
ERICO International Corporation (nVent)
Solon, OH 44139
LENTON LOCK (B1 Series) Foreign Made * Product Discontinued SL-17-08 #4, #5, #6, #7, #8, #9, #10, #11 #4, #5, #6, #7, #8, #9, #10, #11 12/31/2021
LENTON LOCK (S1 Series) Foreign Made * Product Discontinued SL-17-09 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 - 12/31/2021
nVent LENTON Connect S2 SL-21-01 #4, #5, #6, #7, #8, #9, #10, #11 - 2/2/2023
Sleeve-Swaged (Deformation Dependent)BarSplice Products Incorporated
Dayton, OH 45414
BPI-GRIP (BarGrip) SS-17-01 #3, #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 - 9/30/2021
BPI-GRIP (BarGrip) XL SS-17-02 #5, #6, #7, #8, #9, #10, #11, #14, #18 #5, #6, #7, #8, #9, #10, #11, #14, #18 9/30/2021
Grip Twist Position Coupler SS-17-05 #5, #6, #7, #8, #9, #10, #11, #14, #18 - 9/30/2021
Taper Threaded Grip Twist Position Coupler SS-17-07 #0 #11, #14 9/30/2021
Taper Threaded Grip-Twist SS-17-03 #3, #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 #3, #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 9/30/2021
Dextra America Incorporated
Simi Valley, CA 930651574
Griptec SS-17-06 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 - Expired on 12/31/2020
Sleeve-Tapered ThreadDayton Superior
Dayton, OH 45459
Taper Lock D-310 Standard Coupler ST-17-11 #6, #7, #8, #9, #10, #11, #14 - 9/30/2021
Taper Lock D-330 Positional Coupler ST-17-12 #6, #7, #8, #9, #10, #11, #14 - 9/30/2021
Taper Lock D-340 Flange Coupler ST-17-13 #6, #7, #8, #9, #10, #11, #14 - 9/30/2021
ERICO International Corporation (nVent)
Solon, OH 44139
LENTON FORM SAVER ST-17-05 #3, #4, #5, #6, #7, #8, #9, #10, #11 - 12/31/2021
LENTON INTERLOK Rebar Splice System (grout filler) ST-17-06 #8 #8 12/31/2021
LENTON PLUS Position Coupler (P14L) with cold worked taper threaded rebar ST-17-07 #4, #8, #9, #10, #11, #14 #4, #8, #9, #10, #11, #14 2/1/2022
LENTON PLUS Standard Coupler (A12) with cold worked taper threaded rebar ST-17-08 #4, #5, #6, #7, #8, #9, #10, #11, #14 #4, #5, #6, #7, #8, #9, #10, #11, #14 2/1/2022
LENTON Position (P8) ST-17-03 #4, #6, #7, #8, #9, #10, #11, #14, #18 - 12/31/2021
LENTON Position (P9) ST-17-04 #4, #6, #7, #8, #9, #10, #11, #14, #18 - 12/31/2021
LENTON Standard (A2) ST-17-01 #3, #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 - 12/31/2021
nVent LENTON Ultimate Positional (MT12/PT15/MS15) ST-18-02 #4, #8, #9, #10, #11, #14, #18 #4, #8, #9, #10, #11, #14, #18 12/31/2021
nVent LENTON Ultimate Standard (MT12/FT12) ST-18-01 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 #4, #5, #6, #7, #8, #9, #10, #11, #14, #18 12/31/2021
Headed Reinforcement Corporation
Fountain Valley, CA 92708
HRC 410/420 Standard Coupler ST-17-09 #8, #9, #10, #11, #14, #18 #8, #9, #10, #11, #14, #18 11/1/2021
HRC 410/490 Position Coupler ST-17-10 #8, #9, #10, #11, #14, #18 #8, #9, #10, #11, #14, #18 11/1/2021
HY-TEN Reinforcement
Perris, CA 92570
HT.LT Positional Coupler (4-Part Friction Welded) Foreign Made ST-17-16 #6, #7, #8, #9, #10, #11, #14 #6, #7, #8, #9, #10, #11, #14 12/31/2021
HT.P Positional Coupler (3-Part Friction Welded) Foreign Made ST-17-14 #5, #6, #7, #8, #9, #10, #11, #14 #5, #6, #7, #8, #9, #10, #11, #14 12/31/2021
HT.S Standard Coupler (Friction Welded) Foreign Made ST-17-15 #4, #5, #6, #7, #8, #9, #10, #11, #14 #4, #5, #6, #7, #8, #9, #10, #11, #14 12/31/2021
Two Piece Sleeve/Forged EndsHeaded Reinforcement Corporation
Fountain Valley, CA 92708
Xtender 500 XL/510 XL Coupler (formerly 507/571) TP-17-01 #7 #7 11/1/2021
Xtender 500 XL/510 XL Position Coupler (formerly 507/571) TP-17-02 #11 #11 11/1/2021
Xtender 500/510 Standard Coupler TP-17-03 #4, #5, #6, #7, #8, #9, #10, #11, #14 #4, #5, #6, #7, #8, #9, #10, #11, #14 11/1/2021
Xtender 500/520 Form Protector TP-17-06 #4, #5, #6, #7, #8, #9, #10, #11, #14 #4, #5, #6, #7, #8, #9, #10, #11, #14 11/1/2021
Upset Bar Ends-Dowel Bars IncludedDayton Superior
Dayton, OH 45459
US/MC Forged UB-17-01 #6, #7, #8, #9, #10, #11 #7, #8, #9, #10, #11 Expired on 5/28/2021
Wedge-Thru Sleeve (Mechanical Lap Splice)ERICO International Corporation (nVent)
Solon, OH 44139
LENTON QUICK WEDGE Mechanical Lap Coupling Device (Two clips per splice) WT-17-02 #4, #5, #6 - 9/30/2021
OCM, Inc.
Grayslake, IL 60030
O-S Splice Clip (one clip per splice) WT-17-01 #4, #5, #6 - 9/30/2021

Mechanical Couplers on ASTM A 706 (Grade 60) Reinforcing Steel - For Straight Bars Transition

Type of Splice Manufacturer / Supplier Coupler Model Caltrans Coupler
Unique ID
Authorized Service Splice
(Bar Sizes)
Authorized Ultimate Butt Splice
(Bar Sizes)
Expiration Date
Side-by-Side (Mechanical Lap Splice)BarSplice Products Incorporated
Dayton, OH 45414
Double Barrel ZAP Screwlok Transition Coupler SBT-17-01 #3/#4, #4/#5, #5/#6, #6/#7, #7/#8 - 10/29/2021
Sleeve-Lock Shear BoltsBarSplice Products Incorporated
Dayton, OH 45414
ZaP Screwlok Transition Coupler SLT-20-03 #11/#14, #14/#18 - 10/26/2022
ZAP Screwlok Transition Coupler SLT-17-02 #5/#7 - 9/30/2021
Dayton Superior
Dayton, OH 45459
Bar-Lock Transitional Coupler S/CA Series - D220 (formerly S series) SLT-17-01 #5/#6 - 11/1/2021
Sleeve-Swaged (Deformation Dependent)BarSplice Products Incorporated
Dayton, OH 45414
Taper Threaded Transition Grip Twist SST-17-01 #10/#18, #11/#14, #11/#18 #10/#18, #11/#14, #11/#18 9/30/2021
Sleeve-Tapered ThreadERICO International Corporation (nVent)
Solon, OH 44139
LENTON Transition (A2) STT-17-01 #4/#5, #5/#6, #5/#7, #6/#7, #7/#8, #8/#9, #9/#10, #10/#11, #10/#14, #10/#18, #11/#14, #11/#18, #14/#18 - 12/31/2021
Two Piece Sleeve/Forged EndsHeaded Reinforcement Corporation
Fountain Valley, CA 92708
Xtender XT 500/510 Transition Nut Coupler TPT-17-04 #5/#6, #5/#7, #6/#7, #7/#8, #8/#9, #9/#10, #10/#11 #5/#6, #5/#7, #6/#7, #7/#8, #8/#9, #9/#10, #10/#11 11/1/2021
Xtender XT 500/510 Transition Nut Coupler TPT-17-06 #11/#14 #11/#14 11/1/2021

Mechanical Couplers on ASTM A 706 (Grade 60) Reinforcing Steel - For Hoops

Type of Splice Manufacturer / Supplier Coupler Model Caltrans Coupler
Unique ID
Authorized Service Splice
(Bar Sizes)
Authorized Ultimate Butt Splice
(Bar Sizes)
Expiration Date
Sleeve-SwagedBarSplice Products Incorporated
Dayton, OH 45414
BPI-GRIPTM (BarGrip) SW-17-01 #5, #6, #7, #8, #14 - 11/30/2021
Two Piece Sleeve/Forged EndsHeaded Reinforcement Corporation
Fountain Valley, CA 92708
Xtender 500 XL/510 XL Position Coupler (formerly 507/571) TF-17-03 #8 #7, #8 12/31/2021
Xtender 500/510 TF-17-01 #5, #6, #7, #8, #9, #10, #11 #7, #8, #9, #11 11/30/2021
Xtender 500/515 adjustable tension hoop coupler TF-17-02 #8 - 12/31/2021

Mechanical Couplers on ASTM A 615 (Grade 75) - For Threaded Bar

Type of Splice Manufacturer / Supplier Coupler Model Caltrans Coupler
Unique ID
Authorized Service Splice
(Bar Sizes)
Authorized Ultimate Butt Splice
(Bar Sizes)
Expiration Date
Sleeve-Threaded BarDYWIDAG-Systems International
Long Beach, CA 90805
A 615, grade 75 reinforcement bar splice SE-17-01 #11, #18, #20 - 1/31/2022
Williams Form Engineering Corporation
Golden, CO 80401
A615, grade 75 reinforcement bar splice SE-17-02 #14, #18 - 1/31/2022
Threaded BarSkyline Steel Corp
Cartersville , GA 30121-5192
A615, grade 75 reinforcement bar splice TB-17-03 #8, #9, #10, #11, #14 - 2/28/2022

NOTES:

  1. If there is a discrepancy between this list and the authorization letter issued by the California Department of Transportation ("Caltrans") to the splice company, the authorization letter and any conditions therein control
  2. The splice company shall inform Caltrans if any of the following occur: the design of the coupler changes, the material used in the coupler changes, changes to the manufacturing process including location changes of manufacturing plants. Caltrans may revoke the authorization of a mechanical coupler and remove it from this list for any of these reasons or if the splice company engages in fraud or misrepresentation in order to comply with the quality control and quality assurance requirements in section 52 of the Standard Specifications
  3. Caltrans takes no position respecting the validity of any intellectual property rights asserted in connection with any coupler on this list. Users of this list are solely responsible for determining the validity of any such intellectual property rights
  4. All mechanical couplers are on plain black bar unless otherwise stated. Couplers on epoxy-coated bars require corrosion protection covering
  5. Service and ultimate butt splices are defined in section 52 of the Standard Specifications
  6. This table was prepared to provide a reference source for rebar splicing systems currently authorized for use by Caltrans. Caltrans assumes no liability or responsibility for the accuracy or validity of this information if used by other entities

Caltrans contact: Structural Materials Testing Lab, smtl@dot.ca.gov