Premium 100-Piece Flat Head Screw Set, 5/16-18 x 2.5 Inch Black Phosphate Finish ? ? ? ? ? ? ? ? ? ? ? ? ? ? Premium 100-Piece Flat Head Screw Set Size: 5/16-18 x 2.5 Inch Finish: Black Phosphate Product Features: Specially designed for installing wood floors into truck trailers. Six-Lobe Recess Flat Heads ensuring a flush surface in countersunk holes for seamless finish. Self-Tapping Thread Cutting Screws measure length from the top of the head to the tip for precision. Black Phosphate and Oil Finish provides rust inhibition and acts as a lubricant, ensuring durability and ease of use. Perfect for floorboard fastening applications with unique countersunk six-lobe design. Blunt point, tapered entering threads, and multiple cutting edges optimize performance in a variety of materials. Available in much longer sizes compared to standard type-F screws, allowing for versatile usage. Why You Should Choose Our Premium Screw Set: Elevate your woodworking projects with our Premium 100-Piece Flat Head Screw Set. These screws are meticulously crafted for installation in demanding environments, making them the ideal choice for professionals and DIY enthusiasts alike. The six-lobe head offers enhanced gripping power, while the self-tapping feature eliminates the need for pilot holes, making installation both swift and efficient. Not only does the black phosphate finish provide a sleek aesthetic, but it also enhances the longevity of each screw against rust and corrosion. Whether you're working on a flatbed trailer or laying a beautiful wood floor in your home, you can trust that these screws will deliver exceptional performance and reliability. Don?t compromise on quality. Choose our Premium Flat Head Screw Set for all your fastening needs and experience the difference today! Shipping Free Fast Shipping - We offer free shipping to most of the USA with a normal delivery time of 3-7 days. However, due to the current situation, additional delivery time (up to 3 weeks) may be required for some items. Alternative Carriers - We may use alternative carriers (e.g. USPS, FedEx, UPS, etc.) to ensure your package arrives safely and on time. Due to the use of multiple carriers, we are unable to provide a tracking number automatically. Handling Time - Orders are processed and shipped within 1-2 business days of receiving cleared payment. Shipping Restrictions - Shipping to Alaska, Hawaii, Puerto Rico, Guam, and other US territories may incur shipping charges or delivery restrictions. Please contact us before ordering, or your order can be refunded/cancelled. State Restrictions - There may be restrictions based on your state of purchase. For example, certain items may not be shipped to California due to state regulations. Contact for Tracking Updates - If you require tracking updates or have any concerns about the delivery of your order, please feel free to contact us, and we will be happy to assist you. Return 30-Day Hassle-Free Returns - We want you to be completely satisfied with your purchase. If you are not, you can return the item within 30 days of receiving it for a full refund or exchange. Easy Return Process - To start a return, simply contact us and we will provide you with a prepaid return shipping label and detailed instructions. Restocking Fee - There are no restocking fees for returns. However, the buyer is responsible for return shipping costs if the return is not due to a seller's error. Refund Processing Time - Refunds will be processed within 5 business days of receiving the returned item in its original condition. Payment We accept all major credit cards, PayPal, and Apple Pay for your convenience. Your payment information is secure and encrypted to ensure a safe and seamless transaction. Please complete your payment within 3 days of purchase to avoid any delays in shipping. Feedback Your feedback is extremely important to us. We strive to provide the best products and customer service possible. If you are satisfied with your purchase, please take a moment to leave us a positive review. If you have any concerns or issues with your order, please contact us before leaving negative feedback. We are committed to resolving any problems and ensuring your satisfaction. Contact Us If you have any questions or concerns, please feel free to reach out to our customer support team. You can contact us through the messaging system. We are available Monday to Friday, 9:00 am to 5:00 pm EST, and we will do our best to respond to your inquiry within 24 hours. Buy it now and enjoy a pleasant shopping experience! UPC: Not Set Model: Not Set Unit Quantity: 4.2 Material: Alloy Steel Brand: Unbranded Screw Size: 5/16 Grade: Standard Head Style: Flat Type: Deck Screws Drive Style: Star Thread Size: #18 System of Measurement: Inch Item Length: Not Set MPN: Not Set Number in Pack: 100 Finish: Black Phosphate Country/Region of Manufacture: Not Set Unit Type: lb