Tattoo Armature Bar - 3 Choices - Baltimore Street Irons

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More Information
Weight 0.1703
Brand Baltimore Street Irons

Baltimore Street Irons Armature Bar - Black Oxide Finish

The Armature Bar, or A-Bar, is the final piece of the drive system that inserts the needle into the skin, where the needle loop attaches to the machine. Baltimore Street Irons gives us three armature bar choices; a lining bar, a shading bar, and a speed bar. All three armature bars are tumbled and have a black oxide treatment. They measure 1-1/2” long, 1/4” wide, 3/16” thick, and have a mounting hole drilled and tapped for 8/32” screw. Make sure to check out all the Baltimore Street Irons products we carry.


  • Quantity: 1 armature bar
  • 3 choices: lining bar, shading bar, or speed bar
  • Size: 1-1/2” long, 1/4” wide, 3/16” thick
  • 8/32" threading for mounting hole
  • Black oxide treatment
  • Manufacturer: Baltimore Street Irons
Size Table

Standard Body Jewelry Measurements

The following webchart is a quick reference guide for standard body jewelry measurements and how to measure basic body jewelry. Please print this webchart to help measure your body jewelry accurately.

Size Reference Chart

Visit our PainfulPleasures Infocenter for additional body jewelry information. There, you will find detailed articles on standard body jewelry sizes, how to measure body jewelry, basic body jewelry, and more.

Standard Body Jewelry Threading

Ensure compatibility between standard (non-custom) PainfulPleasures body jewelry parts using the tables below. More information on threading, including custom thread patterns, can be found in our Threading Infocenter article.

Internally threaded jewelry has a threaded post on the top and/or end, which is then inserted into a threaded hole in the barbell shaft.

Internal Thread Patterns by Gauge


18g, 16g

14g, 12g


Internal Thread Pattern

0.8mm or 0.9mm



Externally threaded jewelry has a threaded post on the barbell shaft, which is then inserted into a threaded hole in the top and/or end.

External Thread Patterns by Gauge


18g, 16g

14g, 12g, 10g

External Thread Pattern



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