1/4-20 x 1 Flat Countersunk Head Machine Screws, Phillips Drive, 304 Stainless Steel 18-8, Full Thread, Coarse Thread UNC, 25 PCS

About Flat (Countersunk) Head Machine Screws Flat (Countersunk) Head Machine Screws have a flat top that tapers down to a cone shape that will sit flush into a countersunk hole and give a finished appearance. They are known for their effecient application performance and endurance widely used in a variety of industries such as construction, manufacturing, engineering, assembling, aircraft and so on and serves a wide range of use for professionals, amateurs, landlords, repairmen and DIYers. IMPORTANT SIZING NOTES: Length Includes Head All flat head screws are measured from tip to the top of the head (total length), as per ANSI/ASME standards. Micro-Sizes Alert Thread diameters #2-56 & #4-40 are thinner than a toothpick Short lengths like 1/4" (6.35mm) & 3/8" (9.53mm) are smaller than a pencil eraser Images are magnified for detail clarity Double-Check Your Specs 1. Measure your existing screws before ordering 2. Review size charts in product images 3.Don't rely solely on visual appearance Need Help? Unsure about sizing? Message us with your: ① Material thickness ② Hole diameter ③ Application → We'll respond within 24hrs with personalized recommendations Note The Flat (Countersunk) Head Machine Screws length are measured from the top to the end of the thread and the thread length is the overall length minus the height of the head. Contact Us: If you have any questions when using, please feel free to contact us by Amazon message.

• Thread Size: 1/4-20; Screw Length: 1 inch (measured from tip to the top of the head); Package Contents: 25 PCS
• Head Height: 0.46 inch; Ideal for use in confined areas where the head needs to be flush or below the surface
• Precision Countersunk Heads Eliminate Protrusion & Prevent Snagging: Distributes load evenly to prevent material damage; Creates aerodynamic/ergonomic surfaces in machinery and furniture; Reduces stress points in high-vibration applications; Self-seats accurately in pre-drilled holes for rapid assembly
• Material: Constructed from 304 Stainless Steel which delivers superior corrosion resistance and strength compared to common zinc-plated fasteners; Ideal for harsh environments—including high temperature, freezing conditions, and high humidity—it requires no costly or time-consuming maintenance
• Wide Range of Applications: Those furniture screws are widely used in the manufacturing and assembly of wooden furniture, such as cabinets, chairs, tables, shelves, and other household items; They provide a strong and secure connection between wood components, ensuring the stability and durability of the furniture pieces