Fixed Joint Tool

Ribbon menu Connectors tab Joints container Fixed Joint Tool
or
(Classic) Build Joints Fixed Joint Tool
Creates a fixed joint that locks two parts together so they cannot move with respect to each other. The effect is similar to defining two parts as a single part. If you want to have the two parts move relative to each other in a future Simulation, simply delete the fixed joint and use another type of joint.
For a fixed joint, the location and orientation of the joint often do not affect the outcome of the simulation. In these cases, you can place the joint at a location where the graphic icon is easily visible. However, occasionally the placement of the fixed joint can allow force moments to become quite large depending on where you place the joint, as shown in this example. In this case, be sure to place it where you get the results you want.
 
For the option:
Do the following:
1 Location (Bodies Implicit)/
2 Bodies - 1 Location/
2 Bodies - 2 Locations
Set how you want to connect the joint to parts:
1 Location (Bodies Implicit) - Lets you select the location of the joint and have Adams View determine the two parts that should be connected. Adams View selects the parts closest to the joint location. If there is only one part near the joint, Adams View connects the joint to that part and ground.
2 Bodies - 1 Location - Lets you explicitly select the two parts to be connected by the joint and the location of the joint. The joint remains fixed on the first part and moves relative to the second part.
2 Bodies - 2 Locations - Lets you explicitly select the two parts to be connected by the joint and the location of the joint on each part. You should use this option if you are working in exploded view. For more on exploded view, see Performing Initial Conditions Simulation.
Normal to Grid/
Pick Geometry Feature
Set how you want to orient the joint:
Normal to Grid - Lets you orient the joint along the current Working grid, if it is displayed, or normal to the screen.
Pick Geometry Feature - Lets you orient the joint along a direction vector on a feature in your model, such as the face of a part.
First Body/Second Body (only appears if you select to explicitly define the bodies using the options 2 Bodies - 1 Location or 2 Bodies - 2 Locations explained above)
Set the bodies on which you want to attach the joint. Select either:
Pick Body - Select to attach the joint to a body.
Pick Curve - Select to attach the joint to a curve. If you select to attach the joint to a curve, Adams View creates a curve marker, and the joint follows the line of the curve. Learn more about curve markers with Marker Modify dialog box help. Attaching the joint to a spline curve is only available with Adams Solver (C++). Learn about switching solvers with Solver Settings - Executable dialog box help.