9/16"-18 L9 Hex Head Cap Screw – Fine Thread Alloy Steel Zinc Yellow CR+3 (Made in U.S.A.) Engineered for demanding applications, our 9/16"-18 L9 Hex Head Cap Screws provide superior strength and longevity. Fabricated from high-grade alloy steel, these fasteners deliver an impressive tensile strength of 180,000 PSI, offering reliable performance in large-scale, high-stress environments. Featuring fine threading (UNF) for precise adjustments, these American-made screws are a cost-effective choice for bulk orders in critical industries. Advantages of L9 Hex Head Cap Screws Our bulk L9 fasteners meet the highest SAE specifications, ideal for large-scale projects requiring reliable, durable fasteners in industries like construction, manufacturing, and heavy machinery. Fine threads offer enhanced stability in applications requiring precise torque and alignment. Enhanced L9 Features: Increased Head Height: Taller head profile for optimal wrench engagement, reducing the risk of slippage. Radius Under Head: Minimizes stress points for increased durability and strength. Uniform Load Distribution: Smooth bearing surface supports even load application, enhancing security. Key Mechanical Properties: Hardness: 38 to 42 HRC Surface Hardness: HR15N 81.5 Max Tensile Strength: 180,000 PSI Minimum Yield Strength: 155,000 PSI Minimum Proof Load Strength: 145,000 PSI Head Marking: Nine radial lines with "L9" for quick identification Corrosion-Resistant Finish: Zinc Yellow Plating: ASTM F1941/F1941M Fe/Zn 5CN compliant with a minimum 5-micron coating. Yellow Trivalent (Cr+3) Coating: Provides superior corrosion protection with a 96-hour salt spray life. Technical Specifications: Size: 9/16"-18 (Diameter: 0.5625", Threads per Inch: 18) Length Options: Various lengths to suit specific requirements (select above) Material: High-Grade Alloy Steel (L9) Finish: Zinc Yellow CR+3 Plating for optimal corrosion resistance Thread Type: Fine Thread (UNF) Manufactured In: United States Applications Requiring Bulk Quantities: Ideal for automotive, aerospace, and heavy equipment industries, our bulk 9/16"-18 L9 Hex Head Cap Screws offer high-strength fastening solutions for projects requiring precise adjustments and secure performance under intense load. Explore the Full L9 Product Line Order Bulk L9 Fasteners Today! Secure your project with Bulk 9/16"-18 L9 Hex Head Cap Screws. Place your bulk order today and enjoy fast, reliable shipping and expert support from Monster Bolts. ✔️ Ultra high tensile strength for heavy-duty applications ✔️ Increased head height for secure wrenching ✔️ Fine threading for precise installation and alignment ✔️ Bulk purchasing offers cost savings ✔️ Made in the USA with top-quality materials ✔️ Fast, reliable shipping to support project timelines Need assistance? Contact our expert support team | View Shipping and Return Policy
