ARC Studs ARC Stud Types*: Standard Thread Full Thread Full Base Long Reduced Base Short Reduced Base No Thread Tapped – Reduced Base Tapped – Full Base Shoulder – Threaded Collar Notched End (Navy) Rectangular – Plain Rectangular – with Hole Rectangular – ‘T’ Slotted Deformed Concrete Anchor Headed Concrete Anchor Shear Connector Eye Bolt Bent – No Thread “J” Bolt *Metric Studs are also available, MES standard metrics are in the reduced base style, although any stud type can be manufactured with metric dimensions.