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M3 Metric Brass Contact Screw - Tattoo Machine Supplies
The Contact Screw is what carries the electricity from the binding post to the front spring. While the machine is running, the front spring is constantly bouncing off the Contact Screw, so it is important to have a strong screw. Brass is a stronger conductor, so it is perfect for this tattoo machine part. The Brass Contact Screw is 32mm long, has a diameter of 3mm and is M3 metric. The thread length, or distance of the thread, is 0.5mm.
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.
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.
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 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.
14g, 12g, 10g
External Thread Pattern
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