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Stainless Steel Dowel Pins

Stainless steel dowel pins offer excellent corrosion resistance, making them ideal for precision alignment in humid, chemical, or cleanroom environments. Sheng Fong Precision provides a wide selection of stainless steel materials, including SUS303, SUS304, SUS316, SUS420, and SUS630.

Depending on application requirements, heat treatment or passivation can be applied. We also support small-batch customization and tailored machining based on your specifications.

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SUS304 General Purpose Dowel Pins

  • Material: SUS304

  • Chamfer: Deburred both ends

  • Tolerance: Diameter (0/-0.02), Length ±0.2mm

  • ☑ In-stock

  • Custom dimensions available

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白鐵插銷,

SUS304 Positive Tolerance Dowel Pins (ISO 2338)

  • Material: SUS304

  • Standard: ISO 2338

  • Chamfer: 15° chamfer on both ends

  • Tolerance: Diameter (m6), Length ±0.1mm

  • ☑ In-stock

  • Custom dimensions available

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SUS 不鏽鋼定位銷（DIN 6325），客製 M6 正公差規格，單邊 15 度斜角＋R角倒角設計，適用於高精度定位與防鏽需求

DIN 6325 Custom Dowel Pins

  • Material: SUS304

  • Chamfer: As per DIN 6325 (15° + radius on ends)

  • Tolerance:

    • Diameter (h7), Length ±0.1mm

    • Diameter (m6), Length ±0.1mm

  • Fully customizable only

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SUS316 不鏽鋼定位銷，標準型負公差，抗腐蝕性能優異，適用於醫療與高濕環境設備定位

US316 Stainless Dowel Pins

  • Material: SUS316

  • Chamfer: Deburred both ends

  • Tolerance: Diameter (0/-0.02), Length ±0.2mm

  • ☑ In-stock

  • Custom dimensions available

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SUS420 不鏽鋼定位銷，標準型負公差設計，具高硬度與強度，可熱處理並兼具防鏽性能

SUS420 / SUS630 Hardenable Dowel Pins

  • Material: SUS420 or SUS630

  • Chamfer: Deburred both ends

  • Tolerance: Diameter (0/-0.02), Length ±0.2mm

  • Fully customizable only

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Product Features

  • Excellent corrosion resistance for use in automation, medical, and semiconductor assemblies

  • Wide range of tolerance options (h6 / h7 / m6) for precise hole fits

  • Available with various end types: internal threads (single/double), chamfers, anti-slip designs

  • Fast lead times and support for small-batch customization

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Material & Surface Treatment

  • SUS303 / SUS304: Standard grade stainless steel; passivation optional for enhanced corrosion resistance

  • SUS316: Superior corrosion resistance; ideal for medical and food-grade use; passivation optional

  • SUS420: Heat-treatable; hardness up to HRC 50±2 for high-wear applications

  • SUS630: Heat-treatable; excellent strength and dimensional stability under high loads

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 Size Range

  • Diameter: Φ0.8mm to Φ30mm

  • Length: Custom lengths available

  • Machining Options: Single/double-end chamfering, internal threading, directional lead-in, and more

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Applications

  • Cleanroom machinery and medical device positioning

  • Semiconductor equipment and assembly locking

  • Automation fixture modules and alignment

  • Precision positioning for electronic jigs and components

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Customization & Notes

  • Custom tolerance, end features, heat treatment, and passivation available per drawing

  • PDF drawings recommended for accurate quote and faster processing

  • In-stock standard items available for rush and low-volume orders

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