Check the listing for details. 1/4"-20 Grade 5 Finished Hex Nuts Electro Zinc Plated Steel Qty 500. Condition: New. Listed at 29.41 USD. 1/4"-20 Grade 5 Finished Hex Nuts Electro Zinc Plated Steel Qty 500 A finished hex nut is a classic design which is widely used for industrial as well as commercial use hex nuts are required for most fastening purposes and designed for hassle free installation though the hex nut design seems basic they are created to deliver high end efficiency and performance. General Product Information Thread Size : 1/4"-20 Drive Style : Socket Drive Size : 7/16" Material : Steel Grade : Grade 5 Finish : Electro Zinc & Clear Quantity of Hex Nuts in Package : 500 Detailed Product Information: Height / Thickness : 7/32" Threads Per Inch (TPI) : 20 Thread Type : UNC Coarse or Fine Thread : Coarse Specification Met : ASME : B18.2.2-2010 Core Hardness : Rockwell C32 max Proof Load : 120,000 psi Key Notes: Hex Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together the two partners are kept together by a combination of their threads friction with slight elastic deformation which is a slight stretching of the bolt and compression of the parts to be held together. Grade 5 is a Medium carbon steel that has been quenched and tempered to improve its strength making it one of the most commonly used grades in the automotive industry. Zinc is relatively economical and offers good corrosion resistance in environments not subject to excessive moisture. A clear or blueish chromate finish is applied on top of the zinc to provide additional protection against oxidation. An internally threaded fastener that is almost always used with an externally threaded screw, rod, or bolt made of the same or similar material. Fastenere® branded Finished Hex Nuts Meets all Standards which establishes the dimensional, mechanical, and performance requirements of inch and metric Finished Hex Nuts suitable for use in joining the component parts of an assembly. 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.