Coupling Nuts

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Coupling nut by scrooz fasteners. Available in galvanised and zinc coated finishes.

Scrooz Coupling Nuts

Coupling Nut Overview

High performance coupling nuts, also known as coupler nuts or extension nuts, are female threaded fasteners used for joining two threaded rods, studs, threaded components or converting male to female threads. They are typically longer than standard hex nuts and are primarily used to couple together threaded rods. Coupling nuts are internally threaded and designed to secure two male threads together using the internal female threads. Male threads sit on the outside, eg standard bolts, whereas female threads are on the inside, like most standard nuts. They are often hex shaped so a spanner or wrench can tighten or loosen and come in a range of differing finishes. Coupling nuts are utilised in a range of structural applications, most commonly they are used for tightening rod assemblies, joining together threaded rod or pushing a completed rod assembly outward.

All of our coupling nuts are metric coarse thread and all nuts and bolts within our varying ranges fit each other, just match the couple nut diameter with the corresponding bolt diameter, e.g. M10 bolt fits M10 coupler.

 

Coupling Nut Features:

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  • Available in bright zinc plating for corrosion protection.
  • Also available in hot dipped galvanised finish for premium corrosion protection.
  • Suitable for making long studs from shorter studs, all couplers manufactured from GR5 steel, higher grade than mild steel
  • Available in a wide range of sizes to suit most applications
  • Zinc plated coupling nuts are more suited for standard applications which have little exposure to moisture, whereas hot dipped galvanised will suit environments with higher moisture exposure.
  • All coupling nuts are metric coarse thread for use with our entire bolting range of the corresponding diameter

 

Metric Coarse Thread Pitch Chart For Nuts and Bolts

 


M6 x 18mm Coupling Nuts Zinc Plated box 50
RRP $12.85 SAVE $3.55

pay just $9.30

M8 x 24mm Coupling Nuts Zinc Plated box 50
RRP $13.80 SAVE $2.25

pay just $11.55

M10 x 30mm Coupling Nuts Zinc Plated box 50
RRP $24.65 SAVE $2.90

pay just $21.75

M12 x 36mm Coupling Nuts Zinc Plated box 50
RRP $34.05 SAVE $5.80

pay just $28.25

M16 x 50mm Coupling Nuts Zinc Plated box 25
RRP $35.40 SAVE $3.90

pay just $31.50

M20 x 60mm Coupling Nuts Zinc Plated box 25
RRP $74.20 SAVE $5.60

pay just $68.60

M10 x 30mm Coupling Nuts Galvanised box 50

pay just $29.30

M12 x 36mm Coupling Nuts Galvanised box 50
RRP $40.60 SAVE $3.91

pay just $36.69

M16 x 50mm Coupling Nuts Galvanised box 25
RRP $43.85 SAVE $5.45

pay just $38.40

M20 x 60mm Coupling Nuts Galvanised box 25
RRP $83.60 SAVE $15.00

pay just $68.60