18g-16g Internally Threaded Atomic Opal Cluster Top - Price Per 1

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More Information
SKU derm302-anod
Weight 0.0012
Brand Painful Pleasures
Material Titanium 6Al-4V-Eli ASTM F-136
Threading Internal 0.9mm

Single Opal Color Cluster Top – 4mm, 2 x 3mm – 0.9mm Internal – Price per 1

The Atomic Opal Cluster Top is a great simple way to change up the look of your surface, labret, ear piercings, and more. This fun design has a 4mm opal at the center with a matching 3mm opal diagonally on each side, resembling one of the most basic, vital things of all life:  water. It has internal 0.9mm threading located on the 4mm center opal, which is compatible with our standard 18g-16g internally threaded jewelry. The Atomic Cluster is available in two opal colors:  Dark Lapis or White Opal. They are bezel-set on high quality titanium and for a small fee, can be anodized to one of 26 colors at our Hanover, MD Painful Pleasures facility. This listing is for the cluster top only; please see below for a list of compatible jewelry.

Please Note:  The Opal Chart in the gallery of images is for reference only; not all colors are available with this top. Please select from the available options in the drop-down menu.


  • Material:  Titanium 6Al-4V-Eli ASTM F-136
  • Gauge:  18g – 16g (1.0mm – 1.2mm)
  • Opal Sizes:  4mm, 2 x 3mm
  • Threading:  Internal 0.9mm
  • Dimensions:  6mm x 8mm (L x W)
  • Available Colors:  Dark Lapis, White Opal
  • 26 Anodized color options
  • Price per one 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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