{"product_id":"clock-key-5-3-50mm-stamped-foxboro-foxboro-mass-key-lot-k1543","title":"Clock Key #5 \/ 3.50mm Stamped Foxboro, Foxboro Mass  (Key Lot K1543)","description":"\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\" size=\"4\" style=\"font-family:Arial\"\u003e\u003cp style=\"font-family: Arial, sans-serif; font-size: x-large; margin-bottom: 0in; orphans: 1;\"\u003e\u003cb\u003e\u003cu\u003eSelecting the right key size\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, sans-serif; font-size: x-large; margin-bottom: 0in; orphans: 1;\"\u003eThe number sizing systems were developed many years ago and the number on the key corresponds to a size on a particular chart. \u003ci\u003e\u003cb\u003e\u003cfont color=\"#00c3bb\"\u003eThis system becomes an issue when you find out there’s at least three different scales\/charts (American, Swiss, etc...) and all are slightly different, with measurements taken from different points on the arbor.\u003c\/font\u003e\u003c\/b\u003e\u003c\/i\u003e Which means that a No 6 key made by one manufacturer may not be the same as a No 6 by another. \u003cb\u003e\u003ci\u003e\u003cfont color=\"#00c3bb\"\u003eAn example of this is a Number 6 key using the American system is 3.6mm and using the Swiss system is 3.75mm.\u003c\/font\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, sans-serif; font-size: x-large; margin-bottom: 0in; orphans: 1;\"\u003e\u003cb\u003e\u003cu\u003eThe answer to this problem is to measure the arbor\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, sans-serif; font-size: x-large; margin-bottom: 0in; orphans: 1;\"\u003eThe best way is to measure the winding arbor (the steel shaft the key fits on to). If you have a set of vernier callipers get them on the end of the winding arbor and you will get an accurate reading in millimeters. Then its just a matter of selecting the correct key. \u003cfont color=\"#00c3bb\"\u003e\u003cb\u003e\u003ci\u003eThis is the best way to get a key that fits your clock.\u003c\/i\u003e\u003c\/b\u003e\u003c\/font\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, sans-serif; font-size: x-large; margin-bottom: 0in; orphans: 1;\"\u003e\u003cb\u003e\u003ci\u003eNote: all of the clock keys that we list are measured using a clock key gauge that has been verified true.\u003c\/i\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14pt; margin-bottom: 0in; orphans: 1;\"\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: \" times new roman font-size: medium widows:\u003e\u003cfont face=\"Arial\" size=\"5\"\u003eWe have alot of clock related items so check out our other auctions too.\u003c\/font\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: \" times new roman font-size: medium widows:\u003e\u003cfont face=\"Arial\" size=\"5\"\u003eWe do combine shipping and will always refund any excess shipping charges. Thanks for your interest and\/or business. Tim\u003c\/font\u003e\u003c\/p\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003ccenter\u003e\n\t\t\t\t\t\u003c\/center\u003e\n\t\t\t\t\t\u003c!-- end of attachfeedback.com --\u003e\u003cdiv\u003e\u003cspan style=\"white-space-collapse: preserve;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cspan style=\"white-space-collapse: preserve;\"\u003e#AntiqueClockParts #ClockParts #ClockRepair\u003c\/span\u003e","brand":"VintageClockParts.com","offers":[{"title":"Default Title","offer_id":42595950067771,"sku":null,"price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/1914\/4507\/files\/57_59efef0b-a552-4be7-908d-374532e44628.jpg?v=1762311101","url":"https:\/\/vintageclockparts.com\/products\/clock-key-5-3-50mm-stamped-foxboro-foxboro-mass-key-lot-k1543","provider":"VintageClockParts.com","version":"1.0","type":"link"}