The M6-12B is a black coated metal bolt that its only purpose is to assemble the HJ-15 joint. To assemble an HJ-15 joint, you need to connect one H-15 and one H-16 with one M6-N nut and one M6-12B bolt.
This product was designed shorter than its more popular counterpart. This bolt is fixed to the M-6N using a 5mm T-HANDLE allen wrench.
ESD: Be sure to select the antistatic version M6-12BWZ for all the ESD connectors.
A Flexpipe Product
For technical details and images, please search for the product using the 80/20 interactive catalogue found here: https://catalogs.8020.net/80-20-Catalog-26/C/.