All Sasco Clamping Nuts are available as Stud Nuts (SN). To specify, select Clamping Nut (S38, S34S, S12W, etc.) and length of exposed thread (EX).

An S38 Stud Nut with a 1 1/2 inch thread exposure is S38SN112EX as a Part Number.
An S38 Stud Nut with a 2 inch thread exposure is S38SN2EX.