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Union Butterfield 3300(UNC)/3300(UNF) High-Speed Steel Thread Forming Tap, Uncoated (Bright) Finish, Round Shank with Square End

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Product Specifications
Surface Coating
Uncoated (Bright)
Shank Type
Round With Square End
Material Type
High_speed_steel
Number of Flutes
0
Brand Name
Union Butterfield

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Thread Size Thread Type Manufacturer Series # Chamfer Type Shank Diameter Length of Threads Overall Length Pitch Diameter Limit Mfr Part # ASIN

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Currently showing 1-20 of 77 Next 20 »
#0-80 UNF 3300(UNF) Bottoming 0.141" 0.3125" 1.625" H2 1310110 B003JY6MV0 2 $21.58 Buy Options
#1-64 UNC 3300(UNC) Bottoming 0.141" 0.375" 1.6875" H2 1310111 B003JY6MEM 1 $19.75 Buy Options
#1-72 UNF 3300(UNF) Bottoming 0.141" 0.375" 1.6875" H2 1310112 B003JY6N14 1 $17.95 Buy Options
#2-56 UNC 3300(UNC) Bottoming 0.141" 0.4375" 1.75" H3 1310114 B003JY6MFQ 3 $21.44 Buy Options
#2-56 UNC 3300(UNC) Bottoming 0.141" 0.4375" 1.75" H2 1310113 B003JY6MF6 1 $19.65 Buy Options
#2-64 UNF 3300(UNF) Bottoming 0.141" 0.4375" 1.75" H3 1310116 B003JY6N2I 1 $19.67 Buy Options
#2-64 UNF 3300(UNF) Bottoming 0.141" 0.4375" 1.75" H2 1310115 B003JY6N1O 1 $19.66 Buy Options
#3-48 UNC 3300(UNC) Bottoming 0.141" 0.5" 1.8125" H3 1310118 B003JY6MI8 1 $16.02 Buy Options
#3-56 UNF 3300(UNF) Bottoming 0.141" 0.5" 1.8125" H3 1310120 B003JY6N5A 1 $17.17 Buy Options
#4-40 UNC 3300(UNC) Bottoming 0.141" 0.5625" 1.875" H5 1310124 B003JY6MKQ 1 $17.94 Buy Options
#4-40 UNC 3300(UNC) Bottoming 0.141" 0.5625" 1.875" H3 1310123 B003JY6MJC 1 $16.72 Buy Options
#4-40 UNC 3300(UNC) Plug 0.141" 0.5625" 1.875" H5 1310122 B003JY6MJW 1 $19.76 Buy Options
#4-40 UNC 3300(UNC) Plug 0.141" 0.5625" 1.875" H3 1310121 B003JY6MIS 1 $18.79 Buy Options
#4-48 UNF 3300(UNF) Bottoming 0.141" 0.5625" 1.875" H3 1310127 B003JY6N6E 1 $18.81 Buy Options
#4-48 UNF 3300(UNF) Plug 0.141" 0.5625" 1.875" H3 1310125 B003JY6N5U 1 $18.79 Buy Options
#5-40 UNC 3300(UNC) Bottoming 0.141" 0.625" 1.9375" H5 1310132 B003JY6MP6 1 $18.81 Buy Options
#5-40 UNC 3300(UNC) Bottoming 0.141" 0.625" 1.9375" H3 1310131 B003JY6MO2 1 $18.79 Buy Options
#5-40 UNC 3300(UNC) Plug 0.141" 0.625" 1.9375" H5 1310130 B003JY6MOM 1 $18.79 Buy Options
#5-40 UNC 3300(UNC) Plug 0.141" 0.625" 1.9375" H3 1310129 B003JY6MNI 1 $18.81 Buy Options
#5-44 UNF 3300(UNF) Bottoming 0.141" 0.625" 1.9375" H3 1310135 B003JY6N9Q 1 $18.81 Buy Options

Key Features

  • Cold-forms threads in through holes and blind holes without producing chips
  • Rol-Form design includes oil grooves in larger sizes to improve coolant flow
  • Available in UNC (Unified Coarse) or UNF (Unified Fine) right-hand thread options for different applications
  • High-speed steel for compatibility with a variety of materials
  • Round shank with square end helps to minimize rotation in the tool holder

Product Description

The Union Butterfield 3300(UNC)/3300(UNF) uncoated, high-speed steel thread forming tap has a round shank with a square end, lubricant grooves in larger sizes, and is used for cold-forming right-hand threads in ductile materials such as aluminum, brass, bronze, low-carbon steel, and leaded steel. It is available in two different ANSI thread specification standards: UNC (Unified Coarse) and UNF (Unified Fine). It is suitable for threading through holes (extending through the workpiece) and blind or bottoming holes (with only one opening). The Rol-Form design includes lubricant grooves in machine-screw sizes 6 and larger to improve coolant flow.

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 provide an economical alternative to coated tools. The square end shank helps to minimize rotation in the tool holder. This thread forming tap can be used in machines such as drill presses or lathes.

Union Butterfield 3300(UNC) and 3300(UNF) taps are available with a variety of chamfers. This tap conforms with ANSI standards and can create threads to a depth 2 ½ 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.

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.

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