{"product_id":"plastic-nuts-bolts","title":"Plastic Nuts \u0026 Bolts (Engineering Plastic Fasteners)","description":"\u003ch3\u003ePlastic Nuts \u0026amp; Bolts (Engineering Plastic Fasteners)\u003c\/h3\u003e\n\u003cp\u003eKaybin manufactures custom plastic nuts and bolts, engineering plastic fasteners and non-metallic fasteners for industrial and OEM applications where corrosion resistance, chemical resistance, electrical insulation, and lightweight fixing are required.\u003c\/p\u003e\n\u003cp\u003eFasteners are supplied as machined plastic bolts, plastic screws, plastic nuts, plastic washers, plastic spacers and plastic threaded rods, produced to drawing, specification, or matched from samples for replacement plastic fasteners and discontinued OEM hardware.\u003c\/p\u003e\n\u003cp\u003eIndustrial use only — this page covers engineered polymer fasteners, not decorative consumer hardware.\u003c\/p\u003e\n\u003ch4\u003eCommon Industrial Applications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eChemical plant fasteners and washdown equipment (material dependent)\u003c\/li\u003e\n\u003cli\u003eWater treatment, dosing skids, and corrosive utility environments\u003c\/li\u003e\n\u003cli\u003eFood processing fasteners (material\/grade dependent; reviewed per requirement)\u003c\/li\u003e\n\u003cli\u003eMarine equipment where corrosion and galvanic issues occur\u003c\/li\u003e\n\u003cli\u003eElectrical enclosures and non-conductive fastening requirements\u003c\/li\u003e\n\u003cli\u003ePackaging lines and OEM equipment requiring lightweight, non-sparking hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFastener Types \u0026amp; Configurations Manufactured\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlastic hex bolts, plastic cap screws, plastic socket head bolts\u003c\/li\u003e\n\u003cli\u003ePlastic set screws, plastic studs, plastic threaded rod\u003c\/li\u003e\n\u003cli\u003ePlastic nuts (hex, flange, wing, lock-nut styles where applicable)\u003c\/li\u003e\n\u003cli\u003ePlastic washers, plastic spacers and custom insulating bushes\u003c\/li\u003e\n\u003cli\u003eCustom head forms, shank lengths, under-head features, and thread runout control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThread Forms, Sizes \u0026amp; Common Modifiers\u003c\/h4\u003e\n\u003cp\u003eIndustrial fastener searches heavily include size modifiers. Kaybin can manufacture to common metric and imperial threads, confirmed from your mating part, drawing, or sample.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMetric plastic bolts: M4, M6, M8, M10, M12 (and others)\u003c\/li\u003e\n\u003cli\u003eImperial plastic fasteners: 1\/4\", 3\/8\" threaded forms (and others)\u003c\/li\u003e\n\u003cli\u003eThread pitch: coarse or fine thread (as specified)\u003c\/li\u003e\n\u003cli\u003eThread engagement: reviewed for clamp load and stripping risk (material dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eMaterial Options (Selected Per Duty)\u003c\/h4\u003e\n\u003cp\u003ePlastic fastener performance is material-dependent. Fastener grade is selected based on chemical exposure, temperature variation, load, and installation torque requirements.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNylon fasteners (PA6 \/ PA66) – tough, widely used; moisture absorption and dimensional shift reviewed\u003c\/li\u003e\n\u003cli\u003eGlass-filled nylon bolts – higher stiffness for stronger clamp retention (application dependent)\u003c\/li\u003e\n\u003cli\u003ePTFE fasteners (virgin \/ filled) – excellent chemical resistance and low friction; cold-flow behaviour reviewed\u003c\/li\u003e\n\u003cli\u003eAcetal \/ POM fasteners – good dimensional stability and machinability\u003c\/li\u003e\n\u003cli\u003ePolypropylene (PP) and PVDF – chemical service compatibility (media dependent)\u003c\/li\u003e\n\u003cli\u003eUHMW \/ HDPE – lighter-duty corrosion resistant applications\u003c\/li\u003e\n\u003cli\u003ePEEK fasteners – high-performance applications where specified (duty dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eEngineering Performance \u0026amp; Specification Considerations\u003c\/h4\u003e\n\u003cp\u003eEngineering plastic fasteners are selected with attention to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTensile vs shear loading (load path identification)\u003c\/li\u003e\n\u003cli\u003eClamp load and thread engagement length\u003c\/li\u003e\n\u003cli\u003eCreep behaviour under sustained clamp force (polymer-dependent)\u003c\/li\u003e\n\u003cli\u003eThermal expansion effects on joint preload\u003c\/li\u003e\n\u003cli\u003eMoisture absorption effects (nylon-dependent)\u003c\/li\u003e\n\u003cli\u003eChemical compatibility and washdown exposure\u003c\/li\u003e\n\u003cli\u003eUV exposure (if outdoor use is relevant)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCommon Failure Modes\u003c\/h4\u003e\n\u003cp\u003eFastener failures are usually application-driven. Common issues include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlastic bolt shearing under overload or impact\u003c\/li\u003e\n\u003cli\u003eThread stripping from insufficient engagement or over-torque\u003c\/li\u003e\n\u003cli\u003eNylon bolt creep \/ stretching and loss of clamp load over time\u003c\/li\u003e\n\u003cli\u003ePTFE cold-flow leading to loosening (grade dependent)\u003c\/li\u003e\n\u003cli\u003eThermal expansion causing joint relaxation\u003c\/li\u003e\n\u003cli\u003eCracking from chemical attack or stress concentration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMaterial selection and joint design review (engagement length, washer use, clamp geometry) reduce repeat failures.\u003c\/p\u003e\n\u003ch4\u003ePlastic vs Stainless \/ Brass Fasteners\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePlastic fasteners: corrosion resistant, electrically insulating, lightweight, non-sparking (material dependent)\u003c\/li\u003e\n\u003cli\u003eMetal fasteners: higher structural capacity and temperature tolerance, but may corrode or create galvanic issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFinal selection depends on the duty, environment and joint requirements.\u003c\/p\u003e\n\u003ch4\u003eReplacement \u0026amp; OEM Manufacturing Support\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement plastic bolts and plastic nut sets\u003c\/li\u003e\n\u003cli\u003eCustom threaded plastic bolts (non-standard lengths\/head forms)\u003c\/li\u003e\n\u003cli\u003eOEM plastic fasteners and small-batch production\u003c\/li\u003e\n\u003cli\u003eReverse engineering from worn samples where drawings are unavailable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eManufactured in South Africa for industrial and OEM supply across Africa.\u003c\/p\u003e\n\u003ch4\u003eEngineering Details Required\u003c\/h4\u003e\n\u003cp\u003eTo quote and manufacture the correct fasteners, provide:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFastener type (bolt, screw, nut, washer, spacer, threaded rod)\u003c\/li\u003e\n\u003cli\u003eThread form and size (metric\/imperial) + pitch (if known)\u003c\/li\u003e\n\u003cli\u003eLength, head style, and under-head features\u003c\/li\u003e\n\u003cli\u003eLoad type (tension\/shear) and duty severity (light\/medium\/heavy)\u003c\/li\u003e\n\u003cli\u003eEnvironment (chemical exposure, washdown, UV\/outdoor, temperature range)\u003c\/li\u003e\n\u003cli\u003eClamp requirement and mating material (plastic\/metal interface)\u003c\/li\u003e\n\u003cli\u003eDrawing\/CAD or a sample fastener (preferred)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKaybin then selects the correct engineering polymer grade and manufactures plastic nuts and bolts to specification for reliable industrial fastening.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAre nylon bolts strong?\u003c\/strong\u003e Nylon bolts can handle many light-to-medium duties, but clamp load and creep must be considered for sustained joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhen should PTFE fasteners be used?\u003c\/strong\u003e PTFE is chosen for chemical resistance and low friction where cold-flow behaviour is acceptable or controlled by design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo plastic fasteners corrode?\u003c\/strong\u003e Polymer fasteners do not rust, making them useful in wet and chemical environments (material compatibility still matters).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"kaybin","offers":[{"title":"Default Title","offer_id":45262356676780,"sku":null,"price":0.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/4790\/6476\/files\/kaybin-plastic-nuts-bolts-washers-engineering-plastic-fasteners-south-africa_webp.webp?v=1769076413","url":"https:\/\/kaybin.co.za\/products\/plastic-nuts-bolts","provider":"Kaybin","version":"1.0","type":"link"}