Carbon Steel Solid Shaft Knurled Shaft With Dual End Textured Pattern Precision Machined

Carbon Steel Knurled Shaft with Dual-End Textured Pattern – Precision Machined Locating & Assembly Shaft for Mechanical Applications

This carbon steel knurled shaft is a precision-engineered mechanical component designed to offer secure positioning, enhanced grip, and mechanical stability in a wide range of assembly and mounting applications. Both ends of the shaft feature uniform knurled textures, increasing surface friction and making it easier to identify orientation or grip points during assembly.

Manufactured through precision turning and knurling processes, this shaft is ideal for use in mechanical assemblies, rotating components, press-fit connections, and custom jigs or fixtures.

Key Features & Structural Overview

Material – Carbon Steel

• Strong and durable, ideal for mechanical load-bearing applications

• Optional heat treatment for improved hardness and wear resistance

• Compatible with surface finishing (e.g., black oxide, zinc plating)

Knurled Ends – Dual Grip Zones

• Both ends of the shaft are finished with straight or diamond knurling, precision-applied via knurling rollers or cutting tools

• These textured zones significantly increase friction, allowing for:

  • Improved press-fit engagement with mating parts

  • Better torque transfer in rotating components

  • Easier manual handling or identification during assembly

• Knurling options customizable based on required roughness or aesthetic

Shaft Body – Cylindrical Precision Core

• Central body is smooth and dimensionally accurate, acting as a locating feature, rotational axis, or support shaft

• Available in custom diameters, lengths, and tolerances as per design requirements

Application Scenarios

This shaft is commonly used in:

• Mechanical linkages and assembly jigs

• Rotational mechanisms requiring friction lock or grip ends

• Press-fit systems where end grip is critical

• Automated equipment for component alignment or stop positioning

• Fixtures or structural frames where knurled zones serve both functional and visual roles

Whether used as a drive shaft, axle, dowel pin with grip, or locator pin, the dual-knurled design improves handling, insertion consistency, and mechanical reliability.

Our Manufacturing Capabilities

We specialize in custom shaft production, including knurled shafts, stepped shafts, and threaded or slotted variants for industries such as automotive, robotics, automation, and tooling systems.

Capabilities Overview

• Supported Materials:

  • Carbon steel: Q235, 1045, 1215, 4140, etc.

  • Stainless steel (304, 316), alloy steel, brass, aluminum

• Processes Available:

  • CNC turning (high precision, up to ±0.01mm)

  • Knurling: straight, diamond, cross-hatch (custom patterns available)

  • Centerless grinding for surface accuracy

  • Heat treatment: quenching, tempering, case hardening

  • Surface treatments: black oxide, zinc plating, phosphate coating

• Threading & Features (optional):

  • External/internal threading

  • Cross holes, grooves, flats, chamfers

  • End face treatments or slotted heads

• Inspection & Quality Control:

  • Dimensional and surface roughness checks

  • Concentricity and runout testing

  • GO/NO-GO gauges for fit accuracy

  • Material certifications available (RoHS, REACH, etc.)

Prototyping to Mass Production

We support both custom prototypes and volume production, offering quick sampling and scalable capacity for OEM/ODM customers. Drawings (2D/3D), samples, or custom specs are all welcome.

Contact us today to request a quote or discuss your application. Our engineering team is ready to assist with design feedback, material selection, and process optimization for your knurled shaft requirements.