The shank of this anodized aluminum bolt measures 31mm (1.21") long. The 12 x 1.00mm metric thread is a very fine thread pitch.
The shank is designed to fit 12mm ID banjo adapters such as our 6AN to 12mm Banjo Adapter (Part No. 3265-61).
Sold individually. Banjo adapter and 12mm Aluminum Crush Washers (Part No. 3278-M12) are sold separately.