The Allstar Performance ALL99428 quick turn adjuster rod has a 1/2-13 in thread and is made from steel with a zinc oxide finish. It is used with quick release fastener springs to adjust spring tension. Sold each. Thread Size: 1/2-13 in Material: Steel Finish: Zinc Oxide Application: Quick Release Fastener Springs Quantity: Each FAQWhat is the ALL99428 adjuster rod used for?The Allstar Performance ALL99428 adjuster rod is used to adjust the tension of quick release fastener springs.What thread size does this rod have?This rod has a 1/2-13 in thread.What material and finish does this rod have?This rod is made from steel with a zinc oxide finish.{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What is the ALL99428 adjuster rod used for?","acceptedAnswer":{"@type":"Answer","text":"The Allstar Performance ALL99428 adjuster rod is used to adjust the tension of quick release fastener springs."}},{"@type":"Question","name":"What thread size does this rod have?","acceptedAnswer":{"@type":"Answer","text":"This rod has a 1/2-13 in thread."}},{"@type":"Question","name":"What material and finish does this rod have?","acceptedAnswer":{"@type":"Answer","text":"This rod is made from steel with a zinc oxide finish."}}]}