Double-Ended Threaded Rods.

What are Double-Ended Threaded Rods?

Double-ended threaded rods are precision-engineered fasteners with threads at both ends. Unlike a standard fully-threaded rod, a partially threaded rod often incorporates an unthreaded central shank.

This design allows for secure anchoring on one side while providing a threaded attachment point on the opposite end. Whether you require a rod threaded on both ends with symmetrical thread lengths or a variant with different thread lengths on each side, these components offer a robust and highly adaptable solution for complex assemblies.

How Double-End Threaded Rods & Bars Work

A double-end threaded rod provides a heavy-duty connection point between two separate parts. Typically, one end of the double-sided threaded rod is tightly screwed into a tapped hole within a tapped workpiece body or housing. The unthreaded central shank acts as a natural physical stop, ensuring the rod sits at the exact depth required without over-threading. A second component is then placed over the protruding threaded end and secured tightly with a nut and washer.

For example, in automotive engineering or high-pressure pump manufacturing, a steel rod with threaded ends is frequently used to fasten heavy cylinder heads to engine blocks. This method significantly reduces wear on the internal threads of the expensive engine block during routine maintenance, as only the nut is removed to release the component rather than unthreading the entire fastener.

Materials Double-Ended Threaded Rods Are Made From

Accu stocks double-ended threaded rods in high-performance materials designed to deliver steadfast reliability across varied and demanding environments.

• Stainless Steel - (A2): A highly durable and versatile option with excellent resistance to corrosion and oxidation, making it the industry standard for most internal and external engineering projects.
• Stainless Steel - Marine (A4): Formulated specifically for harsh environments, this grade provides superior resistance to challenging chemicals, chlorides and saltwater, ensuring maximum longevity in marine or demanding industrial applications.

Sizes and Types of Double-Ended Threaded Rods Available

Our comprehensive range of double-end threaded rods is manufactured in thread diameters ranging from M6 (6 mm) up to M20 (20 mm). To accommodate diverse structural needs and installation depths, overall lengths are available from a compact 22 mm up to 145 mm.

Depending on your specific application, you can select a double-threaded rod with equal thread lengths on both sides, or opt for a configuration with different thread lengths on each end to suit varying tapped-hole depths and clamping material thicknesses.

FAQs

Q: What is a double-ended bolt called?

A: A double-ended bolt is most commonly referred to as a double-ended stud or metal rod with threaded ends. In engineering contexts, it is also commonly referred to as a partially threaded rod, especially when an unthreaded central shank separates the two threaded portions.

Q: What is a steel rod with threads cut on both ends called?

A: A steel rod with threads cut on both ends is typically called a double-threaded rod or a dual-threaded stud. These components are specifically designed to be screwed into a fixed structure on one side, allowing a nut to tightly secure a separate mating part to the protruding, oppositely threaded end.

Bespoke Double-Ended Threaded Rods Manufacture.

High precision, bespoke manufacture of Double-Ended Threaded Rods to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.