EXHIBIT 1

JOINT FILING AGREEMENT

Pursuant to Rule 13d-1(k)(1)(iii), we the undersigned agree that the Schedule 13G, to which this Joint Filing Agreement is attached as Exhibit 1, is filed on behalf of each of us.

Date: February 14, 2008

HEARTLAND INDUSTRIAL ASSOCIATES, L.L.C.

By: /s/ Daniel P. Tredwell

Name: Daniel P. Tredwell

Title: Managing Member

HEARTLAND INDUSTRIAL PARTNERS, L.P.

By:   Heartland Industrial Associates, L.L.C., its General Partner

By: /s/ Daniel P. Tredwell

Name: Daniel P. Tredwell

Title: Managing Member

TRIMAS INVESTMENT FUND I, L.L.C.

By:   Heartland Industrial Associates, L.L.C., the General Partner of Heartland Industrial Partners, L.P., its Managing Member

By: /s/ Daniel P. Tredwell

Name: Daniel P. Tredwell

Title: Managing Member

METALDYNE INVESTMENT FUND I, L.L.C.

By:   Heartland Industrial Associates, L.L.C., the General Partner of Heartland Industrial Partners, L.P., its Managing Member

By: /s/ Daniel P. Tredwell

Name: Daniel P. Tredwell

Title: Managing Member

HIP SIDE-BY-SIDE PARTNERS, L.P.

By:   Heartland Industrial Associates, L.L.C., its General Partner

By: /s/ Daniel P. Tredwell

Name: Daniel P. Tredwell

Title: Managing Member

TRIMAS INVESTMENT FUND II, L.L.C.

By:   Heartland Industrial Associates, L.L.C., its Managing Member

By: /s/ Daniel P. Tredwell

Name: Daniel P. Tredwell

Title: Managing Member

METALDYNE INVESTMENT FUND II, L.L.C.

By:   Heartland Industrial Associates, L.L.C., its Managing Member

By: /s/ Daniel P. Tredwell

Name: Daniel P. Tredwell

Title: Managing Member