{"product_id":"machine-screws-pan-head-spanner-18-8-stainless-steel-4-40-x-3-8_0406smp","title":"#4-40 X 3\/8\" Tamper Resistant Machine Screws | Pan Head | Spanner Drive | 18\/8 Stainless Steel (100\/Pkg.)","description":"\u003cdiv\u003eIndustrial machine screws designed for precision fastening in electronics housings, equipment cabinets, and machinery assemblies. The pan head, spanner drive design paired with 304 stainless steel delivers reliable torque control and corrosion resistance for harsh environments. \u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: Length 3\/8 inch; Nominal diameter #4\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDrive type\u003c\/strong\u003e: Spanner drive\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial grade\u003c\/strong\u003e: 304 Stainless Steel (18\/8)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThread type\u003c\/strong\u003e: UNC\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThread size\u003c\/strong\u003e: 4-40 UNC\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFunctional benefits\u003c\/strong\u003e: \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCorrosion resistance\u003c\/strong\u003e: 304 Stainless Steel provides superior resistance to moisture, chemicals, and aggressive atmospheres.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTorque control\u003c\/strong\u003e: Pan head geometry enables predictable seating and load distribution in shallow panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSecurity drive\u003c\/strong\u003e: Spanner drive reduces tool slippage and visible tampering in equipment housings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInstallation reliability\u003c\/strong\u003e: Precision manufacturing delivers consistent fit across high-volume assemblies.\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUse cases\u003c\/strong\u003e: \u003cul\u003e \u003cli\u003ePanel mounting in \u003cstrong\u003eelectrical enclosures\u003c\/strong\u003e and \u003cstrong\u003eindustrial machinery\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eInternal fasteners for \u003cstrong\u003eappliance assemblies\u003c\/strong\u003e and control housings\u003c\/li\u003e \u003cli\u003eGeneral purpose fastening in \u003cstrong\u003emanufacturing equipment\u003c\/strong\u003e and workshop cabinetry\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50425532842263,"sku":"0406SMP","price":31.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/0404SMP_8324cc49-62c0-422d-8809-b47b9ffa5800.webp?v=1747422523","url":"https:\/\/mutualscrew.com\/products\/machine-screws-pan-head-spanner-18-8-stainless-steel-4-40-x-3-8_0406smp","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}