{"product_id":"replacement-regulating-screw-singer-part-662-shuttle-hook-tension-fits-29k-29u","title":"Replacement Regulating Screw - Singer Part # 662 - Shuttle Hook Tension - Fits 29K \u0026 29U","description":"\u003cp\u003eThis replacement regulating screw (Part # 662) is a new precision metal tension adjustment screw for the shuttle hook assembly on Singer 29K and 29U industrial shoe patcher (cobbler) machines. Sold individually. Works in tandem with Tension Spring Part # 8611 to control bobbin thread pressure as it exits the shuttle hook — adjusting this screw increases or decreases spring pressure for balanced upper and lower thread tension on leather and heavy materials.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This screw is small and frequently lost during cleaning or maintenance — keeping a spare on hand prevents downtime.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePart #:\u003c\/strong\u003e 662\u003cbr\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Replacement (aftermarket)\u003c\/p\u003e\u003ch4\u003eRelated Parts\u003c\/h4\u003e\u003cp\u003eTension Spring — Part # 8611\u003cbr\u003eShuttle Hook — Part # 8603 (small bobbin)\u003cbr\u003eFor 15 Class race cap springs, see Part # 662S\u003c\/p\u003e\u003ch4\u003eCompatible Singer Models\u003c\/h4\u003e\u003cp\u003e29-1, 29K71, 29K73, 29K171, 29K171A, 29U171A, 29U173A\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Verify your model number and compare to the photos before ordering to confirm fitment.\u003c\/p\u003e\u003cem\u003eConfirm part compatibility with your specific machine before ordering. Part numbers and photos are your best reference.\u003c\/em\u003e","brand":"DMN","offers":[{"title":"Default Title","offer_id":42561617559650,"sku":"662","price":0.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/4681\/files\/enhanced-small-screw-product-photo.png?v=1771007057","url":"https:\/\/www.vintagesingerparts.com\/en-nz\/products\/replacement-regulating-screw-singer-part-662-shuttle-hook-tension-fits-29k-29u","provider":"Central Michigan Sewing Supplies","version":"1.0","type":"link"}