{"product_id":"304-a2-70-stainless-steel-torx-six-lobe-pin-security-self-tapping-screw-m2-9-m4-8","title":"304 A2-70 Stainless Steel Torx Six-Lobe Pin Security Self-Tapping Screw M2.9–M4.8 | Tamper-Resistant | Pan Head","description":"\u003ch2\u003e304 A2-70 Stainless Steel Torx Six-Lobe Pin Security Self-Tapping Screw — M2.9–M4.8 | Tamper-Resistant\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eTamper-resistant Torx six-lobe (T*) pin security self-tapping screws\u003c\/strong\u003e in 304 A2-70 stainless steel — combining the corrosion resistance of marine-grade stainless steel with the tamper-resistance of the pin-in-Torx drive system. The centre pin in the Torx socket prevents standard Torx drivers from engaging, requiring a specialist pin-in-Torx (T* or TR) bit for installation and removal. This makes these screws ideal for outdoor equipment, public installations, and any application where unauthorised access or vandalism is a concern. The self-tapping thread cuts into wood, plastic, and thin sheet metal without pre-tapping. Available in M2.9, M3.5, M3.9, M4.2, and M4.8 diameters with lengths from 8mm to 60mm.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel (A2-70)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrive Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTorx Six-Lobe with Centre Pin (T* \/ TR — tamper-resistant)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePan (round) head\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eScrew Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelf-tapping (thread-forming)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM2.9 \/ M3.5 \/ M3.9 \/ M4.2 \/ M4.8\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8mm – 60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnder 50PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e304 A2-70 Stainless Steel — Corrosion Resistance\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003cth\u003eSuitable Environment\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCarbon steel (zinc plated)\u003c\/td\u003e\n\u003ctd\u003eLow — zinc coating sacrificial\u003c\/td\u003e\n\u003ctd\u003eIndoor, dry environments only\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCarbon steel (black oxide)\u003c\/td\u003e\n\u003ctd\u003eVery low — cosmetic only\u003c\/td\u003e\n\u003ctd\u003eIndoor, dry environments only\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e304 SS A2-70 (this product)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eHigh — passive oxide layer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOutdoor, marine, food, chemical\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e316 SS A4-70\u003c\/td\u003e\n\u003ctd\u003eVery high — molybdenum addition\u003c\/td\u003e\n\u003ctd\u003eMarine, chloride, acid environments\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTorx Pin Security Drive — Tamper Resistance\u003c\/h3\u003e\n\u003cp\u003eThe six-lobe Torx drive provides higher torque transfer than Phillips or slotted drives, reducing cam-out and driver damage. The addition of a centre pin in the socket:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrevents standard Torx drivers from engaging\u003c\/strong\u003e — the pin blocks the standard Torx bit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRequires a pin-in-Torx (T* or TR) bit\u003c\/strong\u003e — a specialist bit with a hole in the centre to accommodate the pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeters casual tampering\u003c\/strong\u003e — standard tool kits do not include pin-in-Torx bits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoes not prevent authorised access\u003c\/strong\u003e — pin-in-Torx bits are readily available to maintenance personnel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003e304 A2-70 stainless steel\u003c\/strong\u003e — excellent corrosion resistance for outdoor, marine, and food-contact applications\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003ePin-in-Torx tamper-resistant drive\u003c\/strong\u003e — prevents removal with standard tools, deters vandalism and unauthorised access\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eSelf-tapping thread\u003c\/strong\u003e — cuts its own thread in wood, plastic, and thin sheet metal\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003ePan head\u003c\/strong\u003e — low-profile domed head for surface-mount applications\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eM2.9–M4.8 range\u003c\/strong\u003e — covers light electronics through medium-duty outdoor fastening\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003e8–60mm lengths\u003c\/strong\u003e — wide range for different material thicknesses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOutdoor electrical enclosure and junction box fastening\u003c\/li\u003e\n  \u003cli\u003ePublic signage and display fastening\u003c\/li\u003e\n  \u003cli\u003ePlayground and outdoor furniture assembly\u003c\/li\u003e\n  \u003cli\u003eMarine and boat deck hardware\u003c\/li\u003e\n  \u003cli\u003eSecurity camera and CCTV enclosure fastening\u003c\/li\u003e\n  \u003cli\u003eVending machine and kiosk panel fastening\u003c\/li\u003e\n  \u003cli\u003eEV charging station enclosure fastening\u003c\/li\u003e\n  \u003cli\u003eFood processing equipment fastening (stainless steel required)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRequired Driver Bit\u003c\/h3\u003e\n\u003cp\u003eThese screws require a \u003cstrong\u003epin-in-Torx (T* or TR) security bit\u003c\/strong\u003e for installation and removal. Common sizes for M2.9–M4.8 screws are T10*, T15*, T20*, and T25*. Standard Torx bits (without the centre hole) will not engage these screws.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I remove these screws with a standard Torx driver?\u003c\/strong\u003e\u003cbr\u003eA: No. The centre pin prevents standard Torx drivers from seating in the socket. You need a pin-in-Torx (T* or TR) security bit with a centre hole to accommodate the pin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are these suitable for saltwater marine environments?\u003c\/strong\u003e\u003cbr\u003eA: 304 stainless steel provides good corrosion resistance in marine environments but can pit in prolonged saltwater exposure. For continuous saltwater immersion, use 316 stainless steel (A4-70) instead.\u003c\/p\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePack of 304 A2-70 Stainless Steel Torx Pin Security Self-Tapping Screws (size and length as selected)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"M2.9 \/ 6.5mm","offer_id":46885481545963,"sku":"380:201442015#6.5mm;5:202191809#M2.9","price":4.38,"currency_code":"USD","in_stock":true},{"title":"M2.9 \/ 8mm","offer_id":46885481611499,"sku":"380:201336456#8mm;5:202191809#M2.9","price":4.1,"currency_code":"USD","in_stock":true},{"title":"M2.9 \/ 9.5mm","offer_id":46885481578731,"sku":"380:201336457#9.5mm;5:202191809#M2.9","price":4.72,"currency_code":"USD","in_stock":true},{"title":"M2.9 \/ 13mm","offer_id":46885481316587,"sku":"380:201336458#13mm;5:202191809#M2.9","price":4.5,"currency_code":"USD","in_stock":true},{"title":"M2.9 \/ 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