Mutual Screw & Supply

MS21209F4-10 | Mil-Spec Helical Inserts | 304 Stainless Steel (100 / Pkg.)

MS21209F4-10 | Mil-Spec Helical Inserts | 304 Stainless Steel (100 / Pkg.) - Main image
$17.52 $24 In stock

These helical inserts are manufactured from 304 Stainless Steel. They are well suited to general fastening and assembly work.

  • Material and finish: 304 Stainless Steel
  • Applications: General fastening and assembly work

Specifications

  • Product type: Helical Inserts
  • Material: 304 Stainless Steel
  • Finish: Plain
  • Measurement type: Imperial
  • Pack quantity: 100 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Alexander ★★★★★

These inserts held up perfectly through a full day of assembly work on a metal fixture, and the 304 stainless steel didn't show a single burr or bind up during installation. The threads cut cleanly every time, which is exactly what I need for general fastening jobs.

Claire ★★★★★

Installed a dozen of these into a stripped engine block thread and they held perfectly during torque testing. The 304 stainless is noticeably tougher than the generic steel ones I used before.

John Z. ★★★★★

I needed a solid batch of inserts for a quick repair job on a machinery panel, and these 304 stainless steel ones held up perfectly without any corrosion. The threads feel precise and cut cleanly, making installation smooth each time.