{"product_id":"plain-hex-bolt-unf","title":"PLAIN HEX BOLT UNF","description":"\u003cp\u003ePlain hex bolts with UNF threads are high-strength fasteners used primarily in heavy-duty machinery, automotive components, and aerospace engineering where precision and vibration resistance are critical.\u003c\/p\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 20px; font-weight: 600; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003eWhat \"UNF\" Means (Unified National Fine)\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-hveid=\"CAAIEhAA\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003eUNF indicates that the bolt uses an imperial, \u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003efine thread pitch\u003c!--TgQPHd|[]--\u003e\u003c\/strong\u003e system. Compared to standard coarse threads (UNC), UNF bolts have more threads per inch (TPI). This specific thread geometry provides distinct engineering advantages:\u003c!--TgQPHd|[]--\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-hveid=\"CAAIGhAA\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003eHigh Vibration Resistance\u003c!--TgQPHd|[]--\u003e\u003c\/strong\u003e: The shallower thread angle prevents the bolt from backing out or shaking loose in high-vibration environments.\u003c!--TgQPHd|[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-hveid=\"CAAIGhAB\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003eGreater Tensile Strength\u003c!--TgQPHd|[]--\u003e\u003c\/strong\u003e: Fine threads leave a larger core diameter area on the bolt shank, allowing it to withstand higher tension and stress forces.\u003c!--TgQPHd|[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd|[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-hveid=\"CAAIGhAC\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003e\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style='font-family: \"Google Sans\", Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px none rgb(10, 10, 10);'\u003eFine Adjustment Precision\u003c!--TgQPHd|[]--\u003e\u003c\/strong\u003e: The high thread density allows for highly precise tightening and micro-adjustments\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SRB Steel \u0026 Hardware Supplies","offers":[{"title":"7\/16\" X 5\"","offer_id":47672779800770,"sku":"B80FP115002","price":2.0,"currency_code":"AUD","in_stock":true},{"title":"1\/2\" X 1 1\/4\"","offer_id":47672779833538,"sku":"B80FP121252","price":1.4,"currency_code":"AUD","in_stock":true},{"title":"1\/2\" X 1 1\/2\"","offer_id":47672779866306,"sku":"B80FP121502","price":1.5,"currency_code":"AUD","in_stock":true},{"title":"1\/2\" X 2\"","offer_id":47672779899074,"sku":"B80FP122002","price":2.0,"currency_code":"AUD","in_stock":true},{"title":"1\/2\" X 2 1\/2\"","offer_id":47672779931842,"sku":"B80FP122502","price":2.7,"currency_code":"AUD","in_stock":true},{"title":"1\/2\" X 3\"","offer_id":47672779964610,"sku":"B80FP123002","price":2.5,"currency_code":"AUD","in_stock":true},{"title":"1\/2\" X 4\"","offer_id":47672779997378,"sku":"B80FP124002","price":3.5,"currency_code":"AUD","in_stock":true},{"title":"5\/8\" X 1\"","offer_id":47672780030146,"sku":"B80FP16100","price":1.7,"currency_code":"AUD","in_stock":true},{"title":"5\/8\" X 1 1\/2\"","offer_id":47672780062914,"sku":"B80FP161502","price":3.5,"currency_code":"AUD","in_stock":true},{"title":"5\/8\" X 2\"","offer_id":47672780095682,"sku":"B80FP162002","price":3.5,"currency_code":"AUD","in_stock":true},{"title":"5\/8\" X 2 1\/2\"","offer_id":47672780128450,"sku":"B80FP162502","price":3.5,"currency_code":"AUD","in_stock":true},{"title":"5\/8\" X 3\"","offer_id":47672780161218,"sku":"B80FP163002","price":3.5,"currency_code":"AUD","in_stock":true},{"title":"5\/8\" X 3 1\/2\"","offer_id":47672780193986,"sku":"B80FP163502","price":3.5,"currency_code":"AUD","in_stock":true},{"title":"5\/8\" X 4\"","offer_id":47672780226754,"sku":"B80FP164002","price":3.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/6335\/8914\/files\/PLAINHEXBOLTUNC.jpg?v=1779090421","url":"https:\/\/srbhardware.com.au\/products\/plain-hex-bolt-unf","provider":"SRB Steel \u0026 Hardware Supplies","version":"1.0","type":"link"}