Description
Bulk 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 Bulk 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 Bulk Ordering 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
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