{"product_id":"cap-screws-button-socket-alloy-steel-4-40-x-5-16","title":"#4-40 X 5\/16\" Button Head Cap Screws | Alloy Steel (100 \/ Pkg.)","description":"\u003cdiv\u003e\n\u003cp\u003eDiscover the Cap Screws Button Socket Alloy Steel 4\/40 x 5\/16 — a compact, high-strength fastener engineered for precise assemblies. This button-head socket cap screw delivers a clean profile and reliable performance for electronics enclosures, machinery, and automotive applications.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Alloy steel for enhanced strength and durability.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eHead Style:\u003c\/b\u003e Button head (socket cap) for a sleek, low-profile finish.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDrive Type:\u003c\/b\u003e Internal hex (Allen) drive for secure seating and easy installation.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThread Size:\u003c\/b\u003e 4-40 thread, a common fine-thread for small fastenings.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e 5\/16 inch.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eRecommended Uses:\u003c\/b\u003e Electronics enclosures, precision machinery, and other assemblies where a neat, flush appearance matters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy Choose Alloy Steel Cap Screws\u003c\/h3\u003e\n\u003cp\u003eAlloy steel cap screws provide superior tensile strength, rugged performance, and long-lasting reliability in demanding environments. The button socket design minimizes protrusion while maintaining robust clamping force.\u003c\/p\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Cap screw, button socket head\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Alloy steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThread:\u003c\/b\u003e 4-40\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e 5\/16 in\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDrive:\u003c\/b\u003e Internal hex (Allen)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUpgrade your fastener collection with these precision-capable, alloy steel cap screws. Order now to ensure a secure fit and dependable performance in your next project.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50350618149143,"sku":"0405CSB","price":12.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/1104CSB188BB_06f4aef0-8ae5-4274-878a-1bc7dac6fa82.jpg?v=1747423239","url":"https:\/\/mutualscrew.com\/products\/cap-screws-button-socket-alloy-steel-4-40-x-5-16","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}