Check the listing for details. 5/8-11 Socket Set Screws Allen Hex Drive Cup Point Stainless Steel 18-8 Qty 5. Condition: New. Listed at 11.36 USD. 5/8-11 Socket Set Screws Cup Point Stainless Steel A set screw is a type of screw generally used to secure an object within or against another object. The set screw passes through a threaded hole in the outer object and is tightened against the inner object to prevent it from moving relative to the outer object. It exerts compressional or clamping force through the bottom tip that projects through the hole. The Cup Point has a special cup section supplied on the end of the threaded member having a depression in the end to reduce the area in contact with the surface which increases its holding and locking power under pressure. General Product Information Drive Style : Allen Hex Drive Size : 5/16" Thread : 5/8-11 Length : Select Length in Drop Down Menu Quantity of Fasteners in Package : 5 Detailed Product Information: (View Full 2D Dimensional Drawing File By Selecting Desired Length in Drop Down Menu) Thread Diameter : 0.625" Threads Per Inch (TPI) : 11 Point Style : Cup Coarse or Fine Thread : UNC Coarse Thread Coverage : Fully Threaded Shipping: All orders placed before 3:30 pm EST Will Ship Same Day Tracking is provided on ALL Orders Priority Mail Shipping service is offered at a discount of only $3.95 UPS Ground UPS Next Day Air is available, Please inquire for pricing Returns : ALL returns are accepted if returned within 60 days. Money Back or exchange guaranteed. NO Restocking Fees. For YOU, we constantly strive to find ways of improving our performance.