{"product_id":"sss430h","title":"Hexagon Head Set Screws - DIN 933, Stainless Steel, Grade 18\/8 - (A2) 304, M4 X 30 mm","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eDIN 933 defines a hexagon head set screw with a fully threaded shank. The standard covers the dimensional form of the head, thread and length so the fastener can be selected consistently by diameter, thread and overall length. The fully threaded design is useful where thread engagement is required along the full length of the fastener, or where the screw is installed into a tapped hole rather than used with a nut.\u003c\/p\u003e\u003cp\u003eThis selected size is specified with diameter M4, length 30 mm, thread M4, pitch 0.7 mm.\u003c\/p\u003e\u003cp\u003eSold in multiples of '100 pieces. 1 Box = '100 pieces.\u003c\/p\u003e\u003ch3\u003eMaterial, Grade \u0026amp; Strength\u003c\/h3\u003e\u003cp\u003eA2 stainless steel, commonly associated with 304 stainless, provides good general corrosion resistance for outdoor, clean industrial and food-related environments. Stainless threads can gall, so anti-seize may be required.\u003c\/p\u003e\u003ch3\u003eFinish \u0026amp; Corrosion Protection\u003c\/h3\u003e\u003cp\u003eThe finish should be matched to the environment, appearance requirements and expected corrosion exposure.\u003c\/p\u003e\u003ch3\u003eTypical Uses\u003c\/h3\u003e\u003cp\u003eDIN 933 set screws are commonly used in machinery, fabricated steelwork, brackets, frames, maintenance work and general engineering where a fully threaded hexagon head fastener is preferred.\u003c\/p\u003e\u003ch3\u003eTechnical Tips\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUse DIN 933 where full thread engagement is required.\u003c\/li\u003e\n\u003cli\u003eFor bolted joints, use a matching nut and washer of the same thread size and suitable strength class.\u003c\/li\u003e\n\u003cli\u003eFor Grade 8.8, 10.9 or 12.9 parts, use correctly rated mating nuts and washers.\u003c\/li\u003e\n\u003cli\u003eTorque values vary by diameter, pitch, finish and lubrication; confirm the correct torque for critical assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSelection Advice\u003c\/h3\u003e\u003cp\u003eChoose DIN 933 when a fully threaded hexagon head fastener is required. Choose DIN 931 when the joint benefits from a partially threaded plain shank for alignment or shear loading.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between DIN 933 and DIN 931?\u003c\/strong\u003e DIN 933 is fully threaded, while DIN 931 is partially threaded. DIN 933 is often preferred for tapped holes or applications where the full length must provide thread engagement.\u003c\/p\u003e","brand":"Screwman","offers":[{"title":"Default Title","offer_id":49604500947184,"sku":"SSS430H","price":1.4,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0833\/4875\/0576\/files\/933_A2.jpg?v=1781382755","url":"https:\/\/screwman.co.za\/products\/sss430h","provider":"Screwman","version":"1.0","type":"link"}