Click for larger image and other views Image is representative of the product family. Select individual products in the table below for more specific images and product specifications

How can we improve our images or Product Specifications?

Union Butterfield 1585(UNC)/1585(UNF) High-Speed Steel Spiral Point Tap, Relieved Style, Uncoated (Bright) Finish, Round Shank with Square End

Be the first to review this item

Product Specifications
Surface Coating
Uncoated (Bright)
Shank Type
Round With Square End
Material Type
High Speed Steel
UNSPSC Code
27112806
Brand Name
Union Butterfield

This item is no longer available

These items ship for FREE with 2-Day Shipping on orders over $50. (Details)

Want it delivered on Tue, Dec 2? Order in-stock items in the next 2 days 14 hrs 40 mins and choose One-Day Shipping at checkout.

  • Share
Currently showing 1-20 of 56 Next 20 »
Thread Size Thread Type Manufacturer Series # Chamfer Type Number of Flutes Shank Diameter Length of Threads Overall Length Pitch Diameter Limit Mfr Part # ASIN

The Amazon Standard Item Number (ASIN) uniquely identifies
the item in the AmazonSupply.com (and Amazon) catalog.

Available

If an item is currently out of stock, but has an estimated lead time, you can place an order now and we will ship it as soon as it is available.
You can also order more than we currently have in stock.
Read more about back orders in our help section.

Price  
All All All All All All All All All      
Currently showing 1-20 of 56 Next 20 »
1/4"-20 UNC 1585(UNC) Plug 2 0.255" 1" 2.5" H2 1010291 B003JY67P6 Usually ships in 4 to 6 weeks $12.15 Buy Options
1/4"-20 UNC 1585(UNC) Plug 3 0.255" 1" 2.5" H1 1010290 B003JY67OC yes $12.15 Buy Options
1/4"-20 UNC 1585(UNC) Bottoming 2 0.255" 1" 2.5" H3 1010294 B003JY67QU yes $13.50 Buy Options
1/4"-20 UNC 1585(UNC) Plug 3 0.255" 1" 2.5" H5 1010296 B003JY67TC yes $13.30 Buy Options
1/4"-20 UNC 1585(UNC) Plug 2 0.255" 1" 2.5" H5 1010293 B003JY67S8 yes $12.15 Buy Options
1/4"-20 UNC 1585(UNC) Plug 3 0.255" 1" 2.5" H3 1010295 B003JY67RE yes $13.30 Buy Options
1/4"-20 UNC 1585(UNC) Plug 2 0.255" 1" 2.5" H3 1010292 B003JY67PQ yes $10.75 Buy Options
1/4"-28 UNF 1585(UNF) Plug 3 0.255" 1" 2.5" H4 1010303 B003JY68IC yes $13.30 Buy Options
1/4"-28 UNF 1585(UNF) Plug 2 0.255" 1" 2.5" H4 1010300 B003JY68HS yes $13.30 Buy Options
1/4"-28 UNF 1585(UNF) Plug 2 0.255" 1" 2.5" H3 1010299 B003JY68FU yes $10.80 Buy Options
1/4"-28 UNF 1585(UNF) Plug 3 0.255" 1" 2.5" H2 1010302 B003JY68EQ yes $4.46 Buy Options
1/4"-28 UNF 1585(UNF) Plug 2 0.255" 1" 2.5" H2 1010298 B003JY68DW Usually ships in 4 to 6 weeks $12.15 Buy Options
1/4"-28 UNF 1585(UNF) Plug 2 0.255" 1" 2.5" H1 1010297 B003JY68CS yes $4.43 Buy Options
1/4"-28 UNF 1585(UNF) Bottoming 2 0.255" 1" 2.5" H3 1010301 B003JY68GY yes $15.45 Buy Options
5/16"-18 UNC 1585(UNC) Plug 2 0.318" 1.125" 2.7188" H1 1010304 B003JY67ZG yes $15.10 Buy Options
5/16"-18 UNC 1585(UNC) Bottoming 2 0.318" 1.125" 2.7188" H3 1010308 B003JY681O yes $16.50 Buy Options
5/16"-18 UNC 1585(UNC) Plug 2 0.318" 1.125" 2.7188" H5 1010307 B003JY683M yes $13.30 Buy Options
5/16"-18 UNC 1585(UNC) Plug 3 0.318" 1.125" 2.7188" H3 1010309 B003JY682I yes $15.20 Buy Options
5/16"-18 UNC 1585(UNC) Plug 2 0.318" 1.125" 2.7188" H3 1010306 B003JY680U yes $11.60 Buy Options
5/16"-18 UNC 1585(UNC) Plug 2 0.318" 1.125" 2.7188" H2 1010305 B003JY6800 yes $13.30 Buy Options

Key Features

  • Spiral point tap pushes chips ahead of tool to reduce clogging
  • Spiral point tap with straight flutes for cutting threads in through holes
  • Relieved-style design reduces friction between tap and workpiece for reduced tool wear
  • Round shank with square end helps to minimize rotation in the tool holder
  • Available in UNC (Unified Coarse) and UNF (Unified Fine) right-hand thread options for different applications

Product Description

The Union Butterfield 1585(UNC)/1585(UNF) uncoated, high-speed steel spiral point tap has a relieved-style design, straight flutes, and a round shank with a square end, and is used to create right-hand threads in a range of materials. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). The spiral point of this tap (sometimes referred to as a “gun tap”) pushes chips ahead of the tool and the straight flutes reduce clogging. Both characteristics make it suitable for threading through holes (extending through the workpiece). Relieved-style design reduces the friction between tap and workpiece for longer tool life.

Right-hand threads are designed to tighten when a 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 helps to minimize rotation in the tool holder. 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 1585(UNC) and 1585(UNF) tap series, taps with 1/4” to 5/16” nominal diameters are available in two or three flutes, and those with 3/8” to 3/4” nominal diameters have three flutes. They are available with a variety of chamfers. These taps conform to ANSI standards and can create threads to a depth 2 ½ times their diameter. They are suitable for the ANSI 3B tolerance class: 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.

Precision Dormer manufactures cutting tools under the following brands: Precision Twist, Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

How can we improve our Product Description?

Customer Reviews

There are no customer reviews yet.

Be the first to review this item

Go to the HomePage

Order by Phone
M-F 8am-8pm ET, Sat-Sun 8am-5pm ET 800-220-4242

My Account| Returns| Help

Website Feedback| Contact Us| Sell on AmazonSupply| Become an Affiliate

Privacy Notice| Conditions of Use

Follow Us 

© 2014 Amazon.com, Inc. and its affiliates.