Best Unified Thread

Union Butterfield 3300(UNF) High-Speed Steel Thread Forming Tap, Uncoated (Bright) Finish, Round Shank With Square End, Plug Chamfer, H3 Tolerance, #5-44 Thread Size

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.

Union Butterfield 3306E(UNC) High-Speed Steel Thread Forming Tap, Extra-Long, Uncoated (Bright) Finish, Round Shank With Square End, Bottoming Chamfer, H5 Tolerance, 6\ O'all Length, 3/8\-16 Thread Size

Cold-forms threads in through holes and blind holes without producing chips.
Extension Rol-Form tap is extra-long for extended reach, with lubricant grooves to improve coolant flow.
Bottoming chamfer for threading the bottoms of blind holes.
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.

3/8-16X2 1/2 Carriage Bolt Grade 8 Fully Threaded Zinc Yellow Pack of 10

Round head bolt with a square neck under the head, and a unified thread pitch..

Zinc Plated Steel Hanger Bolts #8-32 x 2

Zinc Plated Steel Hanger Bolts featuring a #8-32 Machine Screw Thread.
Feature a half unified threading and a half lag screw threading.
Commonly used for suspending electrical wire and sheet metal.
Also commonly used in applications where a hidden joint is required such as furniture making.
Zinc Plating offers an extra layer of corrosion resistance and a shiny finish.

Cle-Line C66811 Quick-Set Collet Assembly with 2-Piece Die

Quick-set two piece die system consists of these parts, die, cap, guide and collet.
Unified and American National thread form standard.

Cle-Line C66789 Quick-Set Collet Assembly with 2-Piece Die

Quick-set two piece die system consists of these parts, die, cap, guide and collet.
Unified and American National thread form standard.

Cle-Line C66807 Quick-Set Collet Assembly with 2-Piece Die

Quick-set two piece die system consists of these parts, die, cap, guide and collet.
Unified and American National thread form standard.

Cle-Line C66786 Quick-Set Collet Assembly with 2-Piece Die

Quick-set two piece die system consists of these parts, die, cap, guide and collet.
Unified and American National thread form standard.

Cle-Line C66785 Quick-Set Collet Assembly with 2-Piece Die

Quick-set two piece die system consists of these parts, die, cap, guide and collet.
Unified and American National thread form standard.