• 25.4mm Metric Nonmagnetic Solid Stainless Steel
  • Tapped M6 on Both Sides
  • Stack-able to Create Any Length
  • Compatible with metric PTA Series 25.4mm Posts
Ø25.4mm [1in] stainless steel extensions posts are used in applications where rigidity and stability are most critical.Typical applications include supporting small breadboards and creating superstructures over the optical table. The PTX series 25.4mm [1 inch] diameter extension posts are also often stacked with our metric PTA series 25.4mm optical posts to create custom lengths.
These nonmagnetic, stainless steel posts are tapped with a M6 threads on both sides. The post also has a Ø6.3mm hole through the middle to allow a ball driver or L-­wrench to be inserted providing extra leverage when tightening or loosening the post. A relief cut has been provided on both ends to ensure proper seating.

If our stock products aren’t quite what you need, try our Custom Optical Post request form. Get the posts you need, FAST!

Item #DescriptionStock statusPriceBuy
PTX100-MØ25.4mm Extension Post - Length 100mmIn stock$19.50

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Ø25.4mm Extension Post -  Length 100mm
PTX350-MØ25.4mm Extension Post - Length 350mmIn stock$42.00

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Ø25.4mm Extension Post -  Length 350mm
PTX250-MØ25.4mm Extension Post - Length 250mmIn stock$28.00

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Ø25.4mm Extension Post -  Length 250mm
PTX200-MØ25.4mm Extension Post - Length 200mmIn stock$24.40

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Ø25.4mm Extension Post -  Length 200mm
PTX150-MØ25.4mm Extension Post - Length 150mmIn stock$22.13

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Ø25.4mm Extension Post -  Length 150mm
PTX125-MØ25.4mm Extension Post - Length 125mmIn stock$20.40

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Ø25.4mm Extension Post -  Length 125mm
PTX075-MØ25.4mm Extension Post - Length 75mmIn stock$17.63

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Ø25.4mm Extension Post -  Length 75mm
PTX050-MØ25.4mm Extension Post - Length 50mmIn stock$16.13

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Ø25.4mm Extension Post -  Length 50mm
PTX038-MØ25.4mm Extension Post - Length 38mmIn stock$15.75

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Ø25.4mm Extension Post -  Length 38mm
PTX025-MØ25.4mm Extension Post - Length 25mmIn stock$13.88

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Ø25.4mm Extension Post -  Length 25mm