1/4-20 Flanged Button Head Socket Screws - Black 316 Stainless Steel (26-Pack, 5 Lengths: 3/8 in to 1 in)

Overview Orion Van Gear Flanged Button Head Socket Screws combine corrosion-resistant 316 stainless steel construction with an integrated flange and compact button head profile. The flange creates a broader bearing surface beneath the screw head, helping distribute clamping force without requiring a separate washer in applications where the flange provides the needed bearing area. Each screw uses standard 1/4-20 UNC machine threads and is fully threaded for flexible fastening across fabrication, T-slot assemblies, automotive projects, RV builds, outdoor installations, and general hardware applications. A 5/32 in internal hex socket allows installation using a common Allen key, hex bit, or driver. The screws feature a black oxidation finish over the 316 stainless steel construction for a dark, low-profile appearance. Five length options are available from 3/8 in through 1 in. Each resealable Orion Van Gear package contains 25 screws in the selected length plus 1 matching spare, for 26 screws total. Key Features 316 Stainless Steel: Highly corrosion-resistant construction for demanding outdoor, automotive, RV, fabrication, and general hardware applications. Black Oxidation Finish Integrated Flange Head: Wide flanged button head provides a broader bearing surface without requiring a separate washer, as the flange provides sufficient support. Low-Profile Button Head: Compact head design helps maintain a clean finished appearance while reducing head projection. 1/4-20 Fully Threaded: Standard 1/4-20 UNC machine threads for use with compatible nuts, threaded inserts, tapped holes, and matching hardware. 5/32 Inch Hex Drive: Internal hex socket accepts a common 5/32 in Allen key, hex bit, or compatible driver. Five Length Options: 3/8 in, 1/2 in, 5/8 in, 3/4 in, and 1 in. 25 + 1 Spare: Each package includes 25 screws in the selected length plus 1 matching spare, for 26 screws total. Technical Specs Technical Specs Spec Details Brand Orion Van Gear Product Type Flanged Button Head Socket Screw Material 316 Stainless Steel Finish Black oxidation finish Thread Size 1/4-20 Thread Standard UNC Threading Fully threaded Head Style Flanged button head Drive Type Internal hex socket Hex Drive Size 5/32 in Available Lengths 3/8 in, 1/2 in, 5/8 in, 3/4 in, 1 in Quantity per Pack 26 screws Applications Fabrication, T-slot assemblies, automotive, RV, outdoor, general hardware, roof racks Frequently Asked Questions (click to expand) 1. What material are these screws made from? They are made from 316 stainless steel and have a black oxidation finish. 2. What thread size do these screws use? All versions use standard 1/4-20 UNC machine threads. 3. Are the screws fully threaded? Yes. The screws are fully threaded. 4. What size hex key is required? The internal hex socket accepts a 5/32 in Allen key, hex bit, or compatible driver. 5. Does the flange eliminate the need for a washer? The integrated flange provides a wider bearing surface beneath the head and can eliminate the need for a separate washer where the flange itself provides the required bearing area for the application. 6. How many screws come in each package? Each package contains 25 screws in the selected length plus 1 matching spare, for 26 screws total. 7. What lengths are available? Available lengths are 3/8 in, 1/2 in, 5/8 in, 3/4 in, and 1 in. 8. What are these screws commonly used for? They are intended for compatible fastening applications including fabrication, T-slot assemblies, automotive projects, RV builds, outdoor installations, and general hardware work. 9. Does the selected package contain mixed lengths? No. Each package contains screws in the selected length, plus one matching spare.