{"product_id":"machine-screws-slotted-round-steel-black-oxide-4-40x5-16_0405msrbkc","title":"#4-40 X 5\/16\" Machine Screws | Round Head | Slotted Drive | Steel Black Oxide (10000\/Pkg.)","description":"\u003cdiv\u003e\n\u003cp\u003eThese machine screws are slotted and round, crafted from steel and finished with a black oxide coating for durability and a low-glare appearance. The size is 4-40 with a length of 5\/16 inch, perfect for tight, precision assemblies.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eThread size\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\u003eMaterial\u003c\/b\u003e: Steel\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eFinish\u003c\/b\u003e: Black Oxide\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eDrive type\u003c\/b\u003e: Slotted\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThese features combine to provide a reliable fastener option when you need a compact, durable screw for small machinery, electronics, or general hardware projects.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mutual Screw","offers":[{"title":"Default Title","offer_id":50345328181527,"sku":"0405MSRBKC","price":185.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/1424MSRBKC_825712f7-be68-4506-a788-93c048bfc7ce.webp?v=1747422655","url":"https:\/\/mutualscrew.com\/products\/machine-screws-slotted-round-steel-black-oxide-4-40x5-16_0405msrbkc","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}