18–16g Internally Threaded Flat Opal Top — 3mm — Price Per 1

3mm • Internal • Price Per 1
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More Information
SKU derm199-anod
Weight 0.0020
Brand Painful Pleasures
Material Titanium 6Al-4V-Eli ASTM F-136
Threading Internal 0.9mm

Titanium Top with 3mm Flat Synthetic Opal — Internal 0.9mm

Change up your look for various ear piercings, dermal anchors, labret posts, and more with this colorful Flat Opal Top. One 3mm flat synthetic opal in the color of your choice is carefully set in a titanium center, which, for a small fee, can be anodized to one of 26 color options at our PainfulPleasures facilities in Hanover, MD. This top has internal 0.9mm threading, which is compatible with our standard 18g to 16g internally threaded jewelry that has a matching thread pattern. The Flat Opal Top is priced per one top only.


  • Material: Titanium 6Al-4V-Eli ASTM F-136
  • Opal Top Size: 3mm (~1/8”)
  • Threading: Internal 0.9mm; 2mm post
  • 17 synthetic opal color options
  • 26 anodized color options
  • Price per one top

18g Compatible Jewelry:

18g Stainless Steel Labret Post
18g Stainless Steel Small Back Labret Post

16g Compatible Jewelry:

16g Stainless Steel Rounded Back Labret Post
16g Stainless Steel Flat Back Labret Post
16g Titanium Flat Back 4mm Disc Labret Post
16g Titanium Flat Back 2.5mm Disc Labret Post
16g Stainless Steel Straight Barbell
16g Titanium Surface Barbell

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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