{"product_id":"type-a-sheet-metal-screws-indented-hex-washer-head-slotted-drive-steel-zinc-plated-5-16-20-x-3_3148awkc","title":"5\/16 X 3\" Type A Self Tapping Sheet Metal Screws | Indented Hex Washer Head | Unslotted Drive | Steel Zinc \u0026 Bake (400\/Pkg.)","description":"\u003cdiv\u003eType A Self Tapping Sheet Metal Screws with an Indented Hex Washer Head enable fast, secure fastening into sheet metal. The unslotted drive and steel zinc \u0026amp; bake finish deliver reliable torque control and corrosion protection in professional assemblies. \u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e Diameter 5\/16 inches; Length 3 inches\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Zinc \u0026amp; Bake\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDrive type:\u003c\/b\u003e Unslotted\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial grade:\u003c\/b\u003e Steel\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eSelf tapping capability:\u003c\/b\u003e Creates mating threads in sheet metal, enabling assembly without pre-threaded holes or tapping operations.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eHead design:\u003c\/b\u003e Indented Hex Washer Head distributes load across the joint surface, reducing pull-through in soft metals.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDrive engagement:\u003c\/b\u003e Unslotted drive interface requires compatible hex drive tooling, providing robust torque transfer and reducing risk of cam-out when used with appropriate bits.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFinish and corrosion protection:\u003c\/b\u003e Zinc plating with bake coating offers a corrosion-resistance barrier suitable for indoor and mildly humid environments.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial suitability:\u003c\/b\u003e Steel base provides higher strength relative to nonferrous alloys for structural sheet metal closures and enclosures.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eTypical applications:\u003c\/b\u003e Automotive interior panels, electrical enclosures, appliance housings, HVAC ductwork, metal cabinets.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eInstallation guidance:\u003c\/b\u003e Ensure sheet metal thickness and hole pitch align with screw dimensions; consider pilot hole size where recommended by design standards for self tapping screws.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":52814966259991,"sku":"3148AWKC","price":222.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/0608AWKC_43.webp?v=1776637532","url":"https:\/\/mutualscrew.com\/products\/type-a-sheet-metal-screws-indented-hex-washer-head-slotted-drive-steel-zinc-plated-5-16-20-x-3_3148awkc","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}