Hillman 5 Pack Hex Coupling Nuts (1/2"-20 x 1-1/4") | Zinc Plated Steel Connector Nuts | Fine Thread Coupler Nuts for Threaded Rod Extension Fastening Applications

★★★★★ 4.2 22 reviews

US$8.40
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Management number 250206279 Release Date 2026/09/17 List Price US$8.40 Model Number 250206279
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Product Description Hillman hex coupling nuts are designed to connect two threaded components, most commonly threaded rods, to create longer assemblies in mechanical and structural applications. These nuts are widely used in construction, industrial setups, and repair projects where extending threaded connections is required. Each coupling nut features an elongated hexagonal shape that allows for easy tightening using standard tools. This design provides better grip and torque control during installation, helping ensure a secure and stable connection between threaded components. The fine thread pattern offers precise engagement and improved holding strength, making these nuts suitable for applications where accuracy and stability are important. This ensures consistent performance when connecting threaded rods or fasteners. Constructed from steel with a zinc-plated finish, these coupling nuts provide durability along with resistance to corrosion. Ideal for fastening, assembly, and extension applications, they offer a reliable solution for connecting threaded components in a variety of projects. From the Manufacturer Hex Coupling Nuts are are defined by their elongated hexagonal shape and used to connect two pieces of threaded material at opposite ends. Hex coupling nuts are made to be highly enduring and able to suit the wide variety of applications they are commonly used for. Hex couplers are also threaded right hand. If a right hand-left hand coupler is needed, consider using a sleeve nut.

  • DESIGNED FOR CONNECTING THREADED COMPONENTS: Joins two pieces of threaded rod or male-threaded fasteners, ideal for extending rod length and assembling threaded structures in construction and industrial projects.
  • FINE THREAD DESIGN FOR PRECISE ENGAGEMENT: Features a fine thread pattern for tighter, more precise fastening, ensuring strong engagement and improved holding performance in applications requiring accuracy and stability.
  • ELONGATED HEX SHAPE FOR EASY INSTALLATION: Extended hexagonal body allows easy tightening with standard tools, improving grip and torque application for more efficient installation and adjustments.
  • ZINC-PLATED STEEL FOR CORROSION RESISTANCE: Made from steel with a zinc-plated finish for moderate rust and corrosion protection, ensuring durability and reliable performance in interior and light-duty exterior applications.
  • TRUSTED HILLMAN FASTENING SOLUTIONS: Hillman products deliver reliable, durable hardware solutions for construction, repair, and home improvement, trusted by professionals and DIYers for consistent performance in everyday projects.
UPC 008236416053
ASIN B00IAVJ41W
Brand Hillman
Color Silver
Model 4377
Set Name Hillman 5-Piece Hex Coupling Nut Set
Size Name 5
Metal Type Alloy Steel
Unit Count 5 Count
Drive Style External Hex
Item Weight 0.12 kg
Part Number 4377
Thread Size 5/8"
Thread Type Unified National
Finish Types Zinc Plated
Grade Rating commercial
Manufacturer The Hillman Group
Thread Class Class 2A
Thread Style Right Hand
Fastener Type Hex
Item Diameter 0.5 inches
Material Type Alloy Steel
Exterior Finish Zinc
Item Dimensions 3.5 x 2.5 x 1.5 inches
Number Of Items 5
Thread Coverage Fully Threaded
Number of Pieces 5
Screw Head Style Hex
Inside Thread Size 5/8"
Compatible Groove Diameter 0.63 inches
Global Trade Identification Number 00008236416053

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