{"product_id":"4-40-unc-304-stainless-steel-knurled-hex-socket-cap-screw-nut-kit-size-4-40unc","title":"#4-40 UNC 304 Stainless Steel Knurled Hex Socket Cap Screw \u0026 Nut Kit - size: #4-40UNC","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAll-in-One 260PCS #4-40 UNC Knurled Hex Socket Head Cap Screw \u0026amp; Hex Nut Assortment:This miniature imperial fastener kit includes fully threaded knurled anti-slip socket head cap screws and matched #4-40 hex nuts, total 260 pieces: ‑ #4-40 Knurled Socket Screws: 3\/16\",1\/4\",5\/16\",3\/8\",1\/2\",5\/8\",3\/4\",7\/8\",1\", 20pcs each ‑ #4-40 Hex Nuts: 80pcs\u003c\/li\u003e\n\u003cli\u003eAll screws adopt standard #4-40 UNC 40-TPI right-hand full coarse thread; screw length measured from underneath the knurled cap head. Widely used for PCB, small instruments, fixtures and replacement of lost miniature UNC screws\u003c\/li\u003e\n\u003cli\u003eCorrosion‑Resistant 304 Stainless Steel Construction:All screws and nuts are manufactured from solid 304 stainless steel. It provides superior anti‑oxidation and chemical corrosion resistance and may be mildly magnetic. Burr‑free uniform coarse threads support repeated assembly and disassembly, more durable than carbon steel fasteners\u003c\/li\u003e\n\u003cli\u003eAnti-Slip Knurled Internal Hex Socket Head Structure:Unique knurled textured surface on the cap head increases surface friction for quick hand pre-tightening without tools; built-in internal hex socket fits standard allen wrenches tightly without slipping during torque tightening. Low-profile round cap fits narrow limited clearance installation spaces inside electronic devices\u003c\/li\u003e\n\u003cli\u003e#4-40 Standard UNC Coarse Full Thread Specification:Fixed 40 threads per inch full-length thread design realizes sufficient meshing depth with matched hex nuts, effectively resisting loosening caused by slight vibration of precision electronic equipment and small machinery\u003c\/li\u003e\n\u003cli\u003ePortable See-Through Compartmentalized Plastic Storage Organizer:Comes with lightweight split transparent plastic storage case. Knurled socket screws and hex nuts are stored in independent separated compartments for instant size identification. Compact lightweight box easy to carry for electronics repair shops, laboratory prototype assembly and home DIY precision hardware projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e #4-40UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel 304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e HVAZI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem dimensions L x W x H:\u003c\/strong\u003e 1 x 1 x 1 inches\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Brand: HVAZI","offers":[{"title":"Default Title","offer_id":52540178268380,"sku":"B07K18SL48-size-4-40unc","price":21.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0913\/3020\/files\/51FScy_pRmL.jpg?v=1789847317","url":"https:\/\/stemora.us\/products\/4-40-unc-304-stainless-steel-knurled-hex-socket-cap-screw-nut-kit-size-4-40unc","provider":"Stemora","version":"1.0","type":"link"}