#2-56#4-40#6-32 UNC 304 SS Button-Head Socket Cap Screws & Nuts Kit

Key features

• All-in-One 390PCS #2-56 #4-40 #6-32 UNC Button‑Head Socket Cap Screws & Hex Nuts Assortment:This complete inch coarse thread hardware kit covers three mainstream UNC sizes, total 390 pieces. #2-56 Screws: 3/16",5/16",1/2",5/8" (20pcs each) + 50pcs #2-56 hex nuts #4-40 Screws:1/4",3/8",1/2",5/8" (20pcs each) + 50pcs #4-40 hex nuts #6-32 Screws:5/16",1/2",3/4",7/8" (20pcs each) + 50pcs #6-32 hex nuts All screws are fully threaded, length measured from under button head for uniform flush mounting
• Corrosion‑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
• Low Profile Button Head Internal Hex Allen Design:Rounded domed button head features wide flat bearing surface to disperse pressure evenly, leaving neat smooth surface after installation. Internal hex socket works with standard allen hex keys, provides stable torque during tightening without surface scratch
• Full Thread Stable Fastening Performance:Full-length threaded shank maximizes meshing contact area with matched hex nuts, ensures tight and non-loosening connection for small machinery, electrical cabinet and hobby equipment assembly
• Classified Storage Case & Wide Industrial & DIY Applications:Packed in compact transparent compartmentalized plastic storage box, each size placed in independent slots for quick size lookup and anti-loss. Suitable for industrial machinery assembly, automotive maintenance, electronic equipment repair, 3D printer, RC model and various hobby DIY projects for professionals and hobbyists

Product description: The button head provides a wide bearing surface, a low head, and a finished appearanceThese screws are fully threaded,unless noted Length is measured from under the headThey are Made from 304 Stainless steel,have good chemical resistance and may be mildly magneticNot recommended for high-strength fastening. Package include: s360PCS #2-56 #4-40 #6-32 UNC 304 Stainless Steel Button-Head Socket Cap Screws Nuts Assortment Kit #2-56 #4-40 #6-32 UNC Button-Head Socket Cap Screws Nuts Kit total 390 pieces. Come with the plastic box: List(Type,Thread/Length,Quantity)： Button-Head Socket Cap Screws--------#2-56x3/16"--------20PCS Button-Head Socket Cap Screws--------#2-56x5/16"--------20PCS Button-Head Socket Cap Screws--------#2-56x1/2"---------20PCS Button-Head Socket Cap Screws--------#2-56x5/8"---------20PCS Hex Nuts----------------------#2-56 UNC--------50PCS Button-Head Socket Cap Screws--------#4-40x1/4"---------20PCS Button-Head Socket Cap Screws--------#4-40x3/8"---------20PCS Button-Head Socket Cap Screws--------#4-40x1/2"---------20PCS Button-Head Socket Cap Screws--------#4-40x5/8"---------20PCS Hex Nuts #4-40 UNC--------50PCS Button-Head Socket Cap Screws-

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