High-End Precision Fasteners · Serving Global Customers Since 2003

Precision Hardened Steel Dowel Pins (GB/T 119)

Precision Hardened Steel Dowel Pins (GB/T 119)

Precision dowel pins manufactured from hardened alloy steel and centerless-ground to an m6 tolerance. They provide repeatable, play-free positioning of mating parts — the standard solution for alignment, indexing and location in fixtures, molds and machine assemblies.

Product Specifications

Product Description

Each pin is through-hardened, centerless-ground and end-chamfered to deliver a consistent m6 tolerance across the whole batch. Consistent diameter is what makes dowel pins work: a slightly press fit into one part and a sliding fit in the other creates a repeatable location that survives thousands of assembly and disassembly cycles without wear or play.

Pins are available in plain, through-hardened and stainless versions, with optional lubrication grooves for interference-fit installations and custom lengths. Batch diameter consistency is verified by statistical inspection, so fixtures built years apart still interchange.

Key Features & Benefits

  • m6 Ground Tolerance: Consistent fit for press-in and sliding locations across batches.
  • Through-Hardened Steel: Wear-resistant surfaces that keep location accuracy over years.
  • Repeatable Positioning: Play-free alignment of mating parts, fixtures and mold halves.
  • Material Options: Alloy steel, stainless steel; chamfered ends for easy insertion.
  • Custom Sizes: Diameter, length and head styles made to specification.

Application Industries

Standard in jigs and fixtures, injection molds and die sets, servo and geared motor assemblies, automotive sensor brackets and any two-part assembly that must come apart and re-align repeatably.

Product Recommendation

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