{"product_id":"hexagon-head-bolts-plain-hi-tensile-sae-5-unf-1-1-4-x-3-in","title":"Hexagon Head Bolts - Plain, Hi - Tensile (SAE 5), UNF, 1-1\/4 X 3 in","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eImperial UNF and UNC fasteners are selected by thread form, diameter, length, material, finish and strength grade. UNF is a fine thread form and UNC is a coarse thread form; they must not be mixed with metric threads.\u003c\/p\u003e\u003cp\u003eThis selected size is specified with diameter 1-1\/4 in, length 3 in, thread 1-1\/4 in.\u003c\/p\u003e\u003cp\u003eSold in multiples of '1 pieces. 1 Box = '1 pieces.\u003c\/p\u003e\u003ch3\u003eMaterial, Grade \u0026amp; Strength\u003c\/h3\u003e\u003cp\u003eSAE Grade 5 is a medium to high tensile imperial fastener grade used where greater strength than low carbon steel is required. Use compatible imperial nuts and washers of suitable strength.\u003c\/p\u003e\u003ch3\u003eFinish \u0026amp; Corrosion Protection\u003c\/h3\u003e\u003cp\u003ePlain finish has no plated corrosion protection and is best used in protected, oiled, painted or indoor environments.\u003c\/p\u003e\u003ch3\u003eTypical Uses\u003c\/h3\u003e\u003cp\u003eImperial UNF and UNC fasteners are used in equipment, vehicles and machinery designed around inch-series thread systems.\u003c\/p\u003e\u003ch3\u003eTechnical Tips\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDo not mix metric and imperial threads.\u003c\/li\u003e\n\u003cli\u003eConfirm whether the thread is UNF or UNC before ordering.\u003c\/li\u003e\n\u003cli\u003eUse matching imperial nuts and washers.\u003c\/li\u003e\n\u003cli\u003eSelect the correct spanner or socket size for the hex head.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSelection Advice\u003c\/h3\u003e\u003cp\u003eSelect the product by matching the thread, size, material, finish and function to the assembly. Avoid choosing only by appearance or a partial part number.\u003c\/p\u003e\n\u003cdiv class=\"screwman-datasheet\"\u003e\n\u003ch3\u003eData Sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca title=\"Download Data Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/4875\/0576\/files\/04100B.PDF\" target=\"_blank\" rel=\"noopener\"\u003eDownload Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cobject style=\"min-height: 120vh; width: 100%;\" data=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/4875\/0576\/files\/04100B.PDF#zoom=125\" type=\"application\/pdf\" width=\"100%\" height=\"700\"\u003e\u003cembed src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/4875\/0576\/files\/04100B.PDF\" type=\"application\/pdf\"\u003e\u003c\/object\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SM-SPEC START --\u003e\n\u003cdiv class=\"screwman-description screwman-spec-block\" data-standard=\"ASME B18.2.1\" data-size=\"1 1\/4 UNF x 3 in\"\u003e\n\u003ch3\u003eDimensions – ASME B18.2.1 1 1\/4 UNF x 3 in\u003c\/h3\u003e\n\u003ctable class=\"screwman-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard\u003c\/th\u003e\n\u003ctd\u003eASME B18.2.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eHexagon head cap screw \/ bolt, inch series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread\u003c\/th\u003e\n\u003ctd\u003e1 1\/4-12 UNF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength (l)\u003c\/th\u003e\n\u003ctd\u003e3 in (76.2 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAcross flats (s)\u003c\/th\u003e\n\u003ctd\u003e1 7\/8 in (47.6 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead height (k)\u003c\/th\u003e\n\u003ctd\u003e25\/32 in (19.8 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread length (b)\u003c\/th\u003e\n\u003ctd\u003e2 3\/4 in (69.8 mm) (ref.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (calculated)\u003c\/th\u003e\n\u003ctd\u003e749.81 kg per 1 000 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eMaterial, Grade \u0026amp; Strength\u003c\/h3\u003e\n\u003ctable class=\"screwman-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHigh tensile steel, property class 8.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty class\u003c\/th\u003e\n\u003ctd\u003e8.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTensile strength Rm (min)\u003c\/th\u003e\n\u003ctd\u003e800 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eYield \/ 0.2% proof Rp0.2 (min)\u003c\/th\u003e\n\u003ctd\u003e640 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProof load stress\u003c\/th\u003e\n\u003ctd\u003e580 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardness\u003c\/th\u003e\n\u003ctd\u003e250-320 HV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElongation after fracture (min)\u003c\/th\u003e\n\u003ctd\u003e12 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMatching nut\u003c\/th\u003e\n\u003ctd\u003eproperty class 8 (ISO 898-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFinish \u0026amp; Corrosion Protection\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePlain \/ self colour:\u003c\/strong\u003e No applied coating. Stainless, brass and nylon parts are supplied plain; plain steel parts need oil, paint or protected environments.\u003c\/p\u003e\n\n\u003cp class=\"screwman-spec-note\"\u003e\u003csmall\u003eNominal dimensions per ASME B18.2.1. Weights are calculated from nominal dimensions and are a guide only (±10%). Values for fit and strength should be confirmed against the standard for critical applications.\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SM-SPEC END --\u003e","brand":"Screwman","offers":[{"title":"Default Title","offer_id":68087978098839,"sku":"BUNF1143H","price":0.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0833\/4875\/0576\/files\/931_P_cf0643bd-71b0-4c4f-8e7a-7c5962207685.jpg?v=1792342461","url":"https:\/\/screwman.co.za\/products\/hexagon-head-bolts-plain-hi-tensile-sae-5-unf-1-1-4-x-3-in","provider":"Screwman","version":"1.0","type":"link"}