18g Internal Titanium Circular Barbell — Price Per 1

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SKU UR474-anod
Weight 0.0014
Brand Painful Pleasures
Material Titanium 6Al-4V-Eli ASTM F-136
Threading Internal 0.8mm

18g Titanium Circular Barbell — Pick Diameter — Internal 0.8mm

This 18g circular barbell is a reliable accessory in any jewelry collection and can be worn in a variety of piercings. The barbell comes in your choice of diameter: 5/16" or 3/8". Both have internal 0.8mm threading, making them suitable for new piercings. These barbells are manufactured from high quality, implant grade titanium, making them safe and comfortable for prolonged wear, new piercings, or for those with sensitive skin. For a small fee, these barbells can be anodized to any one of 26 color options at our PainfulPleasures facilities in Hanover, MD.


  • Material: Titanium 6Al-4V-Eli ASTM: F-136
  • Gauge: 18g (~1mm)
  • Diameters Available: 5/16”–3/8" (~8mm–10mm)
  • Ball Size: 3mm
  • Threading: Internal 0.8mm
  • 26 Anodized color options
  • Price per one circular barbell

Compatible Internal 0.8mm Ends:

Steel Swarovski Jeweled Ball Top
Steel Replacement Ball Top
Titanium Swarovski Flat Jewel Top
Titanium Cone Spike Top

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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