#4-40 UNC 304 Stainless Steel Phillips Pan Head Screw & Hex Nut Kit - size: #4-40UNC

About this item

• All‑in‑One 220PCS #4‑40 UNC Phillips Pan‑Head Machine Screw & Hex Nut Assortment:This imperial fastener set includes full‑thread pan head machine screws and matched #4‑40 hex nuts, total 220 pieces: ‑ Phillips Pan‑Head Screws: #4‑40×3/16", 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 20pcs each ‑ Hex Nuts: #4‑40 UNC, 40pcs
• All screws adopt standard 40‑TPI UNC coarse full thread, length is measured underneath the rounded pan head. Ideal for electronic equipment, precision instruments, fixture assembly and lost imperial screw replacement
• Corrosion‑Resistant 304 Stainless Steel Construction:All screws, nuts and flat washers 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
• #4‑40 UNC 40‑TPI Standard Full Coarse Thread:Conforms to universal imperial UNC coarse thread specification with 40 threads per inch and full‑length threading. Precise thread teeth perfectly interlock with matching #4‑40 hex nuts to avoid loosening caused by slight vibration of electronic devices
• Ergonomic Phillips Pan‑Head Structure:Smooth rounded pan head will not scratch plastic casings and circuit boards. Built‑in Phillips cross recess fits standard cross screwdrivers tightly without slipping during tightening, perfect for narrow compact spaces inside electronic equipment
• Portable See‑Through Compartmentalized Plastic Storage Organizer:Comes with lightweight split transparent plastic storage case. Screws and hex nuts are stored in independent separated compartments for quick size identification. Compact lightweight box easy to carry for electronics repair shops, laboratory assembly and home DIY precision hardware projects

Overview

• Size: #4-40UNC
• Color: Silver
• Material: Stainless Steel 304
• Brand: HVAZI
• Fastener Type: Phillips Pan Head Machine Screw