Aviation components and airframe assembly
The pan head provides a wide bearing surface for steady driving and a low-profile finish in many applications
The black zinc finish provides corrosion resistance while the Torx Alt drive offers high torque transfer and reduced cam-out for quicker
The case-hardened zinc finish offers excellent corrosion resistance and extended service life
This set screw is sized 9/16-18 and measures 1 inches in length
#4-40 X 1/2" Machine Screws | Fillister Head | Phillips Drive | Steel Zinc Plated (10000/Pkg.) Case Hardened Steel Aviation components and airframe assemblyDurable, precise, and ready for demanding metal to metal fastening, these Phillips Fillister head machine screws are constructed from steel and zinc plated for corrosion resistance. The 4 40 thread and 1 2 inch length make them ideal for small to mid size assemblies in electronics, enclosures, appliances, and equipment housings. Key features Head style: Fillister head provides a broad bearing surface for a secure, flush seating. Drive: Phillips drive