Cleveland
Cleveland C54813 Straight Flute Hand Tap 11/16"-11
Cuts 11/16"-11 UNS threads in a single pass with a 1.81 in thread length and 4.03 in overall length
- TypeTaps
- Cuts 11/16"-11 UNS threads with straight-flute design
- High-speed steel construction resists wear during tapping
- Taper chamfer eases thread starting in through holes
- 81 in thread length suits standard depth requirements
- 03 in overall length fits common tap handles
Thread size and pitch
The Cleveland C54813 is a straight flute hand tap designed to cut internal threads of 11/16 inch diameter with an 11 threads per inch UNS pitch. It is intended for machinists and maintenance technicians who need to create new threads or repair damaged ones in a variety of materials.
Taper lead and thread depth
This tap features a taper chamfer that eases entry and alignment when starting a thread by hand. The thread length measures 1.81 inches within an overall tool length of 4.03 inches, which limits the maximum depth of full-form threads that can be cut in a single pass.
Material capacity and fit class
Constructed from high speed steel with a bright uncoated finish, the tap handles general-purpose ferrous and non-ferrous metals. It is manufactured to a H3 thread limit for a class 2B fit, providing standard tolerance for general assemblies but not the tighter control required for precision or high-stress joints.
Highlights
- Cuts 11/16"-11 UNS threads with straight-flute design
- High-speed steel construction resists wear during tapping
- Taper chamfer eases thread starting in through holes
- 81 in thread length suits standard depth requirements
- 03 in overall length fits common tap handles
Specifications
| Brand | CLEVELAND |
|---|---|
| Type | Taps |
Questions about this item
Should I choose the 11/16"-11 UNS tap or a different thread size for my application?
Select the 11/16"-11 UNS tap only when the drawing or part specifies that exact diameter and 11 threads per inch; other sizes will not produce the correct thread form.
What does the 4.03 in overall length mean when I am tapping a hole?
The 4.03 in overall length determines how deep the tap can reach into a blind hole and whether it clears fixtures or work-holding on your machine.
How does the straight-flute design affect chip removal in a 1.81 in thread length?
Straight flutes push chips ahead of the tap, so for a 1.81 in thread depth you must reverse frequently or use a through-hole setup to avoid packing.
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