---
product_id: 105828027
title: "Union Butterfield 1528(UNC) High-Speed Steel Hand Tap, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, 3 Flute, H1 Tolerance, 2-56 Thread Size"
brand: "union butterfield"
price: "R911"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Industrial"
url: https://www.desertcart.co.za/products/105828027-union-butterfield-1528-unc-high-speed-steel-hand-tap-uncoated
store_origin: ZA
region: South Africa
---

# Union Butterfield 1528(UNC) High-Speed Steel Hand Tap, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, 3 Flute, H1 Tolerance, 2-56 Thread Size

**Brand:** union butterfield
**Price:** R911
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Union Butterfield 1528(UNC) High-Speed Steel Hand Tap, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, 3 Flute, H1 Tolerance, 2-56 Thread Size by union butterfield
- **How much does it cost?** R911 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/105828027-union-butterfield-1528-unc-high-speed-steel-hand-tap-uncoated)

## Best For

- union butterfield enthusiasts

## Why This Product

- Trusted union butterfield brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Size:3 Flute, H1 Tolerance, #2-56 Thread Size
            
          
            
            
            
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             Style:Bottoming Chamfer
            
          
          
        
      
    
  


        
        
     
	       
     

     
                              
     
       	       
        
         
        
        	
        	
        		
        			 The Union Butterfield 1528(UNC)/1528(UNF)/1528(UNS) uncoated, high-speed steel hand threading tap has straight flutes and a round shank with a square end, and is used to create machine-screw sized right-hand threads in a range of materials. It is available in three different ANSI thread specification standards: UNC (Unified Coarse), UNF (Unified Fine), or UNS (Unified Special). The straight flutes are suitable for threading through holes (extending through the workpiece) and blind or bottoming holes (with only one opening). Machine-screw sizes are used frequently in many industries and products.  Right-hand threads are designed to tighten when the head or nut is rotated clockwise (the most common threading direction). High-speed steel (HSS) is a common general-purpose steel for cutting tools and is compatible with a variety of materials. With no coating or surface treatment, this uncoated tool can be used on a broad range of materials and provides an economical alternative to coated tools. The round shank with square end makes it suitable for hand or power-driven applications. This tool can be used in machines, such as drill presses or lathes, or with hand tools such as tap wrenches.  In the Union Butterfield 1528(UNC) series, taps that are machine-screw size 1 have two flutes; sizes 2 through 6 are available in two or three flutes; sizes 8 and 10 are available with two, three, or four flutes; and size 12 has 4 flutes. In the 1528(UNF) series, taps that are sizes 0 and 1 have two flutes; sizes 2, 3, and 4 have three flutes; sizes 5 and 6 are available in two and three flutes; size 8 has four flutes; size 10 is available in two, three, and four flutes; and size 12 has four flutes. UB 1528(UNS) taps are available in size 4, with three flutes. Taps in these series are available with a variety of chamfers. This tap conforms to ANSI standards and can create threads to a depth 1 &#xBD; times its diameter. It is suitable for ANSI 2B and 3B tolerance classes: 2B is an average quality fit for commercial and industrial fasteners; 3B produces close-tolerance fasteners that resist loosening, as in aerospace applications.  Taps produce internal threads in previously formed holes and can be used in machines (such as drill presses) or with hand tools. Common types of taps include hand taps, spiral point taps, spiral flute taps, thread forming taps, and pipe taps. Hand taps (straight-flute taps) collect chips in the straight flutes of the tool; spiral point taps push chips through holes ahead of the tool; and spiral flute taps pull chips back from the tip of the tool, up and out the hole. Thread forming taps, also known as cold forming taps, press rather than cut to create threads in a drilled hole, and no chips are created. Pipe taps create threads in pipes and pipe fittings. Each thread type designates a thread profile and each type is identified with an abbreviation. In the U.S. and Canada, the Unified Thread Standard is the dominant thread type, including UNC (Unified Coarse), UNF (Unified Fine), and NPT (National Pipe Taper) threads, among others.  Dormer Pramet manufactures cutting tools under the following brands: Precision Twist Drill, Dormer, Union Butterfield and Pramet. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

## Features

- Hand threading tap with straight flutes cuts threads in through holes and blind holes
- Machine-screw tap sizes, in frequent demand for many industries and products
- Available in UNC (Unified Coarse), UNF (Unified Fine) or UNS (Unified Special) right-hand thread options for different applications
- High-speed steel is compatible with a variety of materials
- Uncoated (bright) tools have no additional surface treatment or coating, for use on a broad range of materials

## Images

![Union Butterfield 1528(UNC) High-Speed Steel Hand Tap, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, 3 Flute, H1 Tolerance, 2-56 Thread Size - Image 1](https://images-na.ssl-images-amazon.com/images/I/41eNght3X-L.jpg)
![Union Butterfield 1528(UNC) High-Speed Steel Hand Tap, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, 3 Flute, H1 Tolerance, 2-56 Thread Size - Image 2](https://images-na.ssl-images-amazon.com/images/I/31uJfo-PQoL.jpg)
![Union Butterfield 1528(UNC) High-Speed Steel Hand Tap, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, 3 Flute, H1 Tolerance, 2-56 Thread Size - Image 3](https://images-na.ssl-images-amazon.com/images/I/51CQTbJZ3PL.jpg)
![Union Butterfield 1528(UNC) High-Speed Steel Hand Tap, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, 3 Flute, H1 Tolerance, 2-56 Thread Size - Image 4](https://images-na.ssl-images-amazon.com/images/I/31DoEwFfwcL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solved my problem!
*by A***R on June 24, 2013*

I used this tap to install a trailer hitch on a 9-year-old 2004 Toyota Sienna.  I spent more time than I'm willing to admit to in public with liquid wrench, wire bushes, and a real wrench trying to get the threads cleared.  I ordered this tap, and was able to clear all 6 holes in just a few minutes.  This tapered tap found the threads under the corrosion with only a little bit of gentle finagling.  I have a sliding-bar tap wrench, and was able to turn it with one hand in a confined space using one hand.  If I'd had a proper tap like this one when I started, I could have saved myself a lot of time and frustration.

### ⭐⭐⭐⭐⭐ Now THIS is a tap!
*by P***K on December 6, 2011*

I bought this thing to tap the ends of some aluminum extrusions on the advice of someone who said that this particular tap was a cut above others and would greatly speed the task. I figured a tap is a tap is a tap, but I bought it anyway, and boy, am I glad I did! This tap really slices through the aluminum with a minimum of effort. I got the job done very quickly. Definitely a worthwhile addition to your toolbox.

### ⭐⭐⭐⭐⭐ Good quality tap
*by T***R on August 18, 2016*

Not a lot to say except that this tap did exactly what it was supposed to do, I used it to clean up some damaged threads on a stainless steel fitting on my sailboat and it worked fine. Seems to be of good quality.

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**Shop now:** [https://www.desertcart.co.za/products/105828027-union-butterfield-1528-unc-high-speed-steel-hand-tap-uncoated](https://www.desertcart.co.za/products/105828027-union-butterfield-1528-unc-high-speed-steel-hand-tap-uncoated)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-13*