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ELFM Female-to-Male Extension


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


Part Number EL28F28M130N
Material Steel
Finish Plain
Rebar Size, Metric 28 mm
Rebar Size, US #9
Rebar Size, Canada 30M
Diameter (Ø) 1.57"
Length (L) 5.12"
Bar Depth (BD) 1.65"
Unit Weight 1.7 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
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
Standard Packaging Quantity 20 pc
UPC 78285693529
EAN-13 0782856935292
Bar dimensions and weights listed may vary by region. Coupler sizes not shown may be available by special order. Contact your nVent LENTON representative for more information.

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