Exhibit 99.1

FOR IMMEDIATE RELEASE

Chicago Rivet & Machine Co. Announces First Quarter Results of Operations.

Naperville, IL, May 7, 2010.  Chicago Rivet & Machine Co. (NYSE Amex, symbol: CVR) today announced results for the first quarter of 2010 as summarized below:

CHICAGO RIVET & MACHINE CO.

Summary of Consolidated Results of Operations

For the Three Months Ended March 31

	2010		2009
Net sales	$	6,761,393	$	4,759,290
Income (loss) before income taxes		48,869		(953,861	)
Net income (loss)		33,869		(623,861	)
Net income (loss) per share		.04		(.65	)
Average shares outstanding		966,132		966,132

(All figures subject to year-end audit)

Contact:

Kimberly A. Kirhofer

Chicago Rivet & Machine Co.

(630) 357-8500