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REBAR SPLICING · Ø20

Rebar couplers Ø20 mm

Ø20 mm · A500Cthread M21×2,5GOST 34278-2024

All LOMAX mechanical coupler types for splicing Ø20 mm rebar — threaded, tapered, swaged and anchor. Full-strength connection, factory price.

The coupler for Ø20 mm rebar joins class A500C bars end-to-end without welding or lapping: the M21×2,5 thread is rolled onto the rebar and the splice becomes full-strength to the bar body. Below are all versions of the Ø20 mm coupler made by LOMAX with prices; click a type to open its card with the full size table.

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In shortA coupler for 20 mm rebar is a mechanical splice of A500C class Ø20 mm bars with an M21×2,5 thread, without welding or lapping. For Ø20 mm LOMAX produces the full range of versions: threaded (standard, weldable, double-ended, position, bolted), tapered and press couplers, and end anchors. Full-strength splice per GOST 34278-2024, used in columns, walls and slabs.

Coupler parameters for Ø20 mm rebar

Rebar diameterØ20 mm (class A500C)
Threadcylindrical metric M21×2,5
Coupler bore Ø17.8 mm
Coupler outer Ø (type B)30 mm
Coupler length (type B)51 mm
MaterialSteel 45 / 40Cr · LOMAX laser marking
Splice strength≥ 100% of the bar's ultimate tensile strength · GOST 34278-2024

All LOMAX couplers for Ø20 mm rebar — types and prices

Prices incl. VAT, retail, per piece; volume discount available. "Open" leads to the type card right at the Ø20 mm row.

Coupler typePrice fromPage
Threaded cylindrical
Standard connecting (Type B)103 ₽Open Ø20 →
Double-ended R/L (Type AB)107 ₽Open Ø20 →
Weldable threaded (Type AR)144 ₽Open Ø20 →
Position (Type AF)447 ₽Open Ø20 →
Bolted (Type AR-bolt)624 ₽Open Ø20 →
Tapered (upset)
Tapered (Type LX-C)on requestOpen Ø20 →
Tapered (Type AC)on requestOpen Ø20 →
Tapered position (Type CF)on requestOpen Ø20 →
Swaged (press)
Swaged LX-Presson requestOpen Ø20 →
End anchors (dead end)
End anchor (Type AD1)263 ₽Open Ø20 →
End anchor (Type AD2)248 ₽Open Ø20 →
Tapered anchor (Type LX-CD1)on requestOpen Ø20 →
Swaged anchor LX-Press ADon requestOpen Ø20 →

Prices for tapered and swaged types depend on the batch — ask for the current quote.

Where Ø20 mm couplers are used

Ø20 mm rebar is a working reinforcement in columns, walls, pile caps and slabs of cast-in-place buildings. A Ø20 coupled splice replaces welding and lapping: it saves rebar, removes weld inspection and speeds up installation. For congested and end nodes, weldable (AR) and position (AF, CF) versions are used; for regular splices — standard (B) and swaged (LX-Press).

Rebar couplers by diameter

All sizes Ø16–40 mm — choose the diameter you need:

Ø16Ø18Ø20Ø22Ø25Ø28Ø32Ø36Ø40

FAQ — couplers for Ø20 mm rebar

Which couplers suit Ø20 mm rebar?

For splicing Ø20 mm rebar, LOMAX makes threaded (standard B, weldable AR, double-ended AB, position AF, bolted), tapered (LX-C, AC, CF) and swaged (LX-Press) couplers, plus end anchors. All are Ø20 mm for A500C rebar.

What thread does the Ø20 mm rebar coupler have?

Cylindrical metric M21×2,5: bore diameter 17,8 mm, coupler outer diameter 30 mm, length 51 mm (per drawing, type B). The thread is rolled onto the bar with no loss of cross-section.

How much does the Ø20 mm rebar coupler cost?

A standard connecting coupler B Ø20 mm — from 103 ₽ incl. VAT; weldable AR — 144 ₽. Tapered and swaged — on request. We confirm the exact price and availability within the day.

Do Ø20 mm couplers comply with GOST?

Yes, the mechanical splice is full-strength to the bar and complies with GOST 34278-2024 · LOMAX TU, with a quality certificate and laser marking.

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We\'ll select Ø20 mm couplers for your project. Send your specification — we'll return a quote and price within 1 business day.

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