SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

TRIMAS CORPORATION

(Name of Issuer)

896215

December 31, 2007

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

o Rule 13d-1(b)
þ Rule 13d-1(c)
o Rule13d-l(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act, but shall be subject to all other provisions of the Act.

 

 

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Item 1(a). Name of Issuer:

TriMas Corporation

Item 1(b). Address of Issuer’s Principal Executive Offices:

39400 Woodward Avenue, Suite 130, Bloomfield Hills, Michigan 48304

Item 2(a). Names of Person Filing:

Masco Corporation and its wholly-owned subsidiary
Masco Capital Corporation

Item 2(b). Addresses of Principal Business Office:

Both:		21001 Van Born Road Taylor, MI 48180

Item 2(c). Citizenship:

Both: Delaware

Item 2( d). Title of Class of Securities:

Common Stock

Item 2(e). CUSIP Number:

896215

Item 3. If this Statement is filed pursuant to §240.13d-1(b), or §240.13d-2(b) or (c):

Not Applicable

Item 4. Ownership:

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

Masco Corporation:

(a) Amount Beneficially Owned: 2,454,614

(b) Percent of Class: 7.3%

(c) Number of shares as to which Masco Corporation has:

(i) sole power to vote or to direct the vote: 2,454,614

(ii) shared power to vote or to direct the vote: 0

(iii) sole power to dispose or to direct the disposition of: 2,454,614

(iv) shared power to dispose or to direct the disposition of: 0

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Included in the foregoing are the following for Masco Capital Corporation:

(a) Amount Beneficially Owned: 2,173,913

(b) Percent of Class: 6.5%

(c) Number of shares as to which Masco Capital Corporation has:

(i) sole power to vote or to direct the vote: 2,173,913

(ii) shared power to vote or to direct the vote: 0

(iii) sole power to dispose or to direct the disposition of: 2,173,913

(iv) shared power to dispose or to direct the disposition of: 0

Item 5. Ownership of Five Percent or Less of a Class:

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than 5 percent of the class of securities, check the following [ ].

Item 6. Ownership of More Than Five Percent on Behalf of Another Person:

Not Applicable.

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person:

Not Applicable.

Item 8. Identification and Classification of Members of the Group:

Not Applicable.

Item 9. Notice of Dissolution of Group:

Not applicable.

Item 10. Certification:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

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SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 13, 2008