Mutual Screw & Supply

MS21209F1-20 | Mil-Spec Helical Inserts | 304 Stainless Steel (50 / Pkg.)

MS21209F1-20 | Mil-Spec Helical Inserts | 304 Stainless Steel (50 / Pkg.) - Main image
$5.68 $8 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: 50 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.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

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

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

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

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

View policy

Customer Reviews (4.2 / 5 · 5 reviews)

Nicholas P. ★★★★★

Used a pack of these to repair stripped threads on an engine mount, and the 304 stainless steel held up perfectly under torque. The self-locking tangs seated cleanly and none of them spun out during installation. Exactly the durability I needed for a permanent fix.

Joseph ★★★★☆

Installed a full pack of these across several jigs and they seated cleanly every time; the 304 stainless gives a nice, solid feel when the bolt runs in. Only knock is the tang removal takes a few extra seconds with my tool, but no binding issues at all.

Sebastian D. ★★★★☆

Installed a full pack of these into a jig plate, and every insert seated perfectly without any issues. The 304 stainless feels sturdy and should hold up well in regular assembly work. Only wish the pack included a few more for the price.