{"product_id":"5-8-18-x-13-16-x-2-1-8-a563-hex-coupling-nut-zinc","title":"5\/8-18 x 13\/16 x 2 1\/8 A563 Hex Coupling Nut Zinc","description":"\u003cp\u003e5\/8-18 x 2 1\/8 A563 Hex Coupling Nut Zinc .  A double chamfered hex nut used to join to externally threaded parts of equal diameter and pitch, often two pieces of threaded rod. Manufactured from 1010 - 1018 equivalent steel. Hardness = Rockwell B68 - C32 Tensile strength = 60,000 psi. minimum. Note - there is no single standard for coupling nut dimensions. These values are offered as a guide; deviations from these specifications may occur.\u003c\/p\u003e","brand":"FMW Fasteners","offers":[{"title":"Default Title","offer_id":53365494120761,"sku":"1733011","price":2.25,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/6067\/0009\/files\/media_168e45fc-50e0-4a76-87f3-f1f491050e28.jpg?v=1780809235","url":"https:\/\/makeitstudios.com\/products\/5-8-18-x-13-16-x-2-1-8-a563-hex-coupling-nut-zinc","provider":"MakeIt Studio","version":"1.0","type":"link"}