Taken from SSMS script generator:

ALTER TABLE [dbo].[XYZ$Customer] ADD CONSTRAINT [XYZ$Customer$0] PRIMARY KEY CLUSTERED

(

[No_] ASC

)

WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF,

ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)

ON [Data Filegroup 1]

GO