{"product_id":"hexagon-socket-countersunk-head-screws-din-7991-alloy-grade-10-9-1-4-x-5-8-bsw","title":"Hexagon Socket Countersunk Head Screws, DIN 7991, Alloy Grade 10.9, 1\/4\" x 5\/8\" BSW","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eDIN7 specifies the dimensional requirements for parallel pins, ensuring reliable interchangeability and engineering performance.\u003c\/p\u003e\u003cp\u003eThis selected size is specified with diameter 1\/4 in, length 5\/8 in (15.9 mm), pitch 20 TPI.\u003c\/p\u003e\u003cp\u003eSold per piece. Screwman code CCBSW1458H.\u003c\/p\u003e\u003ch3\u003eMaterial, Grade \u0026amp; Strength\u003c\/h3\u003e\u003cp\u003eSelect the material and grade according to the intended load, environment and application.\u003c\/p\u003e\u003ch3\u003eFinish \u0026amp; Corrosion Protection\u003c\/h3\u003e\u003cp\u003ePlain finish is intended for protected indoor applications.\u003c\/p\u003e\u003ch3\u003eTypical Uses\u003c\/h3\u003e\u003cp\u003eUsed in machinery, maintenance, manufacturing, agriculture, mining and general engineering applications.\u003c\/p\u003e\u003ch3\u003eTechnical Tips\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSelect the correct size and material for the application.\u003c\/li\u003e\n\u003cli\u003eInspect components before installation.\u003c\/li\u003e\n\u003cli\u003eFollow recognised engineering practices and manufacturer recommendations.\u003c\/li\u003e\n\u003c\/ul\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\/07470B.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\/07470B.PDF#zoom=125\" type=\"application\/pdf\" width=\"100%\" height=\"700\"\u003e\u003cembed src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/4875\/0576\/files\/07470B.PDF\" type=\"application\/pdf\"\u003e\u003c\/object\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SM-DRAW START --\u003e\n\u003cdiv class=\"screwman-description screwman-drawing\"\u003e\n\u003ch3\u003eTechnical Drawing – ASME B18.3\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/4875\/0576\/files\/drawing_07470.jpg\" alt=\"ASME B18.3 dimensioned technical drawing\" style=\"max-width:100%;height:auto;\" loading=\"lazy\" width=\"900\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eDimension symbols refer to the table below. Drawing source: Fabory data sheet 07470.\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SM-DRAW END --\u003e\n\u003c!-- SM-SPEC START --\u003e\n\u003cdiv class=\"screwman-description screwman-spec-block\" data-standard=\"ASME B18.3\" data-size=\"1\/4 BSW x 5\/8 in\"\u003e\n\u003ch3\u003eDimensions – ASME B18.3 1\/4 BSW x 5\/8 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 B18.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eHexagon socket flat countersunk screw, inch series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread\u003c\/th\u003e\n\u003ctd\u003e1\/4-20 BSW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength (l)\u003c\/th\u003e\n\u003ctd\u003e5\/8 in (15.9 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead diameter (dk, approx.)\u003c\/th\u003e\n\u003ctd\u003e1\/2 in (12.7 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead angle\u003c\/th\u003e\n\u003ctd\u003e82°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHex key (s)\u003c\/th\u003e\n\u003ctd\u003e7\/44 in (4.0 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (calculated)\u003c\/th\u003e\n\u003ctd\u003e4.39 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 alloy steel, property class 10.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty class\u003c\/th\u003e\n\u003ctd\u003e10.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTensile strength Rm (min)\u003c\/th\u003e\n\u003ctd\u003e1040 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\u003e940 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProof load stress\u003c\/th\u003e\n\u003ctd\u003e830 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardness\u003c\/th\u003e\n\u003ctd\u003e320-380 HV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElongation after fracture (min)\u003c\/th\u003e\n\u003ctd\u003e9 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMatching nut\u003c\/th\u003e\n\u003ctd\u003eproperty class 10 (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 B18.3. 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":68088000348311,"sku":"CCBSW1458H","price":0.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0833\/4875\/0576\/files\/7991_P_8c578feb-59b6-4c2f-939a-c6c8e950e074.jpg?v=1792343488","url":"https:\/\/screwman.co.za\/products\/hexagon-socket-countersunk-head-screws-din-7991-alloy-grade-10-9-1-4-x-5-8-bsw","provider":"Screwman","version":"1.0","type":"link"}