Skip Content

Thread Insert,1/2-20x21/32 L,Pk5 close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
How can we improve our Product Images?

Thread Insert, 1/2-20x21/32 L, Pk5

Price $38.30 / pkg. of 5

Please sign in or register to access lists

Confirm ZIP Code to determine availability.


Invalid Zip Code


Ship to: (Change)


Invalid Zip Code

  • Item # 4ZB80
  • Mfr. Model # 303-820
  • UNSPSC # 23172011
  • Catalog Page # N/A
  • Shipping Weight 0.15 lbs.
Country of Origin USACountry of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • ItemSelf Locking Thread Insert
  • Wall TypeHeavy
  • Material303 Stainless Steel
  • Internal Thread Size1/2-20
  • External Thread Size3/4-10
  • Thread TypeUNC Internal/UNC External
  • Length21/32"
  • Tap Sizes3/4-10
  • Drill Size21/32"
  • Min. Full Thread Depth3/4
  • External Thread Class2A
  • Internal Thread Class2B
  • Tensile Strength (PSI)89,900
  • Brinell Hardness160
  • ApplicationFor Use on Metal
  • InstallationScrewdriver, Bolt/Nut, or Power Drive Tool 4ZE58
  • Power Driver4ZE58
  • Package Quantity5
How can we improve our Technical Specifications?

Alternate Search Terms

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.