Thread Adapter with female 1/4" thread to male 3/8" thread. It works with the Double Head Stud w/ 1/4" to 3/8" thread, and make it work as a Double head stud w/ 3/8" to 3/8" thread.
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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