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ELFM Female-to-Male Extension

LENTON ELFM Female-to-Male Extensions are a unique problem solver for the LENTON taper-threaded splicing system. The extensions are ordered to customer specified lengths and are machined to have a female LENTON taper thread on one end and a male LENTON taper thread on the other. These extensions can be used in conjunction with the entire LENTON taper threaded coupler product line to increase the length of either the reinforcing steel or LENTON couplers.


  • Small diameter reduces concrete cover and eliminates reinforcing steel bar (rebar) congestion
  • Tapered thread helps prevent cross-threading and provides a positive locking, no-slip connection
  • Installs quickly, taking approximately four and one-half turns to engage
  • No special tools or skills required
  • Available in customer specified lengths


Material: Steel
Finish: Plain
Part Number Rebar Size, Metric Rebar Size, US Rebar Size, Canada Hex WidthW DiameterØ LengthL Bar DepthBD Unit Weight
EL25F25M125N 25 mm #8 25M 1.38" 4.92" 1.57" 1.27 lb
EL28F28M130N 28 mm #9 30M 1.57" 5.12" 1.65" 1.70 lb
EL32F32M138N 32 mm #10 1.77" 5.43" 1.78" 2.27 lb
Designed to Meet
AASHTO, ABNT NBR 8548:1984, ACI 318 Type 1 (125% Specified Yield), ACI 318 Type 2 (Specified Ultimate), ACI 349, ACI 359, AS3600, BS EN 1992-1-1, BS EN 1992-2, CAN/CSA - N287.2/.3/.4, DIN EN 1992-1-1, Eurocode 2, IBC Type 1 (125% Specified Yield), IBC Type 2 (Specified Ultimate), ISO 15835, NEN EN 1992-1-1, NF A 35-020-1, NF EN 1992-1-1, ÖNORM EN 1992-1-1, Sellafield Ltd. Std. ES_0_3110, US Army Corps of Engineers
Bar dimensions and weights listed may vary by region. Coupler sizes not shown may be available by special order. Contact your LENTON representative for more information.

Pentair, CADDY, CADWELD, CRITEC, ERICO, ERIFLEX, ERITECH and LENTON are owned by Pentair or its global affiliates. All other trademarks are the property of their respective owners. Pentair reserves the right to change specifications without prior notice.


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