Skip Content


1/2"-20 Machine Tap, Plug, 3 Flutes, Cobalt, Steam Oxide Tap Finish

  • Item # 31GF56
  • My Part #
  • Mfr. Model # C50055
  • Catalog Page # N/A
  • UNSPSC # 23153305
Machine Tap,Plug,1/2"-20 Thread close

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.

CAD Downloads

Clearance Price $11.87 / each

Web Price $50.50

Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Please sign in or register to access Quote

Get Free Standard Shipping
  • Shipping Weight 0.12 lbs.
Country of Origin South Africa Country 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

Product Details

This Cleveland® high-performance tap is ideal for use with cast steel, hardened steel, heat-resistant stainless steel, work hardening stainless steel, and titanium alloys.

View More

Technical Specs

  • Item Machine Tap
  • Tap Grouping Tap
  • Tap Style Spiral Point
  • Tap Dimension Type Inch
  • Tap Thread Size 1/2"-20
  • Tap Chamfer Plug
  • Number of Flutes 3
  • Pitch Diameter Limit H5
  • Tap Material Cobalt
  • Tap Finish Steam Oxide
  • Tap Thread Type UNF
  • Thread Direction Right Hand
  • Thread Length 1-9/64"
  • Shank Dia. 0.367"
  • Overall Length 3-17/40"
  • List Number 505SS
  • Number of Pieces 1
  • Standards USCTI Table 302A
How can we improve our Technical Specifications?

Compliance and Restrictions

Alternate Products

Alternate Products may not be identical in style or function to original selection. Please compare below for more information.

Customer Reviews

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.