{"product_id":"133032","title":"3249 - 133032 - Silicon Bronze Machine Screw Slotted Flat Head- 5\/16 - 18 UNC x 5\"","description":"\u003cp\u003e\u003cspan\u003eA countersunk metal thread machine screw with a countersunk\/flat head and slot drive, that can either fastened with a nut and washer or into a female thread or component.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a flat o\u003c\/span\u003e\u003cspan\u003er countersunk head, these screws are designed to recess into the parent and finish flush with the surface. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from silicon bronze, it provides outstanding resistance to seawater corrosion, atmospheric oxidation, and chemical exposure throughout its operational lifespan without requiring protective coatings or maintenance interventions — critical for marine installations, offshore equipment, and coastal infrastructure. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eScrew Size Chart\u003c\/h4\u003e\n\u003ctable style=\"height: 260.719px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e Head Diameter\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%; height: 19.5938px;\"\u003e18.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e Head Height\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%; height: 19.5938px;\"\u003e6.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e Slot Drive \u003c\/td\u003e\n\u003ctd style=\"width: 35.1986%; text-align: center; height: 19.5938px;\"\u003e mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e Slot Depth\u003c\/td\u003e\n\u003ctd style=\"width: 35.1986%; text-align: center; height: 19.5938px;\"\u003e mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 25.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 25.5938px;\"\u003e Countersink Angle\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%; height: 25.5938px;\"\u003e90 degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e TPI\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%; height: 19.5938px;\"\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e Plain Shank Diameter\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%; height: 19.5938px;\"\u003e9.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e Outside Thread Diameter\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%; height: 19.5938px;\"\u003e9.26 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e Finish\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%; height: 19.5938px;\"\u003eMill Finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e Metric Equivalent*\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%; height: 19.5938px;\"\u003eM8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e Material\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%; height: 19.5938px;\"\u003e\n\u003ca href=\"https:\/\/www.babf.com.au\/blogs\/news\/bronze-material\"\u003eSilicon Bronze\u003c\/a\u003e\u003ca href=\"https:\/\/www.babf.com.au\/blogs\/news\/brass\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 64.4404%;\"\u003e Thread Length\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%;\"\u003e63mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 64.4404%; height: 19.5938px;\"\u003e\u003cstrong\u003e Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 35.1986%; height: 19.5938px;\"\u003e\u003cstrong\u003e125mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e*Equivalent size, incompatible thread, may be interchangeable\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable style=\"height: 136.344px; width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 22.7188px;\"\u003e\n\u003ctd style=\"text-align: center; height: 22.7188px;\"\u003eDeck Winches\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 22.7188px;\"\u003eCrane Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 22.7188px;\"\u003e\n\u003ctd style=\"text-align: center; height: 22.7188px;\"\u003eHydraulics\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 22.7188px;\"\u003eBrake Pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 22.7188px;\"\u003e\n\u003ctd style=\"text-align: center; height: 22.7188px;\"\u003eBrake Winches\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 22.7188px;\"\u003eSlide Wear Pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 22.7188px;\"\u003e\n\u003ctd style=\"text-align: center; height: 22.7188px;\"\u003eDrilling Rigs\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 22.7188px;\"\u003eTug Boats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 22.7188px;\"\u003e\n\u003ctd style=\"text-align: center; height: 22.7188px;\"\u003eElectronics\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 22.7188px;\"\u003eFemale threaded components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 22.75px;\"\u003e\n\u003ctd style=\"text-align: center; height: 22.75px;\"\u003eMarine\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 22.75px;\"\u003eWooden Boats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eAerospace\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003enon-magnetic non sparking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Bronze \u0026 Brass Fasteners Pty. Ltd.","offers":[{"title":"Default Title","offer_id":47296355598589,"sku":"133032","price":18.55,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0648\/2172\/3389\/products\/133000-a-silicon-bronze-machine-screw_387bbe66-0f9e-48b8-adbb-30eb17c1d14c.jpg?v=1659517496","url":"https:\/\/www.babf.com.au\/products\/133032","provider":"Bronze and Brass Fasteners Pty Ltd","version":"1.0","type":"link"}