Titanium Threadless 4-Prong Round Natural Stone Top. These Threadless Tops are made from Implant Grade Titanium TI-6AL-4V ELI ASTM F136 with 25g durable Titanium Pin designed to be practical and easy to use. Fitting all sizes of pins and bases in our threadless body jewelry line. Pin Size: 0.45mm x 4.7mm. ?We are transitioning our material to Japanese Titanium. Several of the colors/sizes have been updated already to Japanese Titanium. The Lot # & "JPN" will appear on the label which indicates that it is sourced and milled from titanium made in Japan, a DFARS compliant country for titanium.?We have corresponding mill certificates for these Tops which can be located on our website once logged in.The certificate includes the heat # & lot # for traceability.
