| 
               Delaware 
             | 
            
               1-6770 
             | 
            
               25-0790410 
             | 
          ||
| 
               (State
      or other jurisdiction of incorporation) 
             | 
            
               (Commission
      File Number) 
             | 
            
               (IRS
      Employer Identification No.) 
             | 
          
| 
               8285
      Tournament Drive 
             | 
            ||
| 
               Suite
      150 
             | 
            ||
| 
               Memphis,
      Tennessee 
             | 
            
               38125 
             | 
          |
| 
               (Address
      of principal executive offices) 
             | 
            
               Zip
      Code 
             | 
          
| 
               (d) 
             | 
            
               Exhibits 
             | 
          
| 
               99.1 
             | 
            
               Press
      release, dated July 31, 2009. 
             | 
          
| MUELLER INDUSTRIES, INC. | |||
| 
               | 
            
               By:
       
             | 
            /s/ Kent A. McKee | |
| Name: | Kent A. McKee | ||
| Title: | Executive Vice President and Chief Financial Officer | ||
| Date: July 31, 2009 | |||
| 
               Exhibit
      No. 
             | 
            Description | 
| 
               99.1 
             | 
            
               Press
      release, dated July 31, 2009. 
             |