Bulk 5/8"-18 L9 Hex Head Cap Screw – Fine Thread Alloy Steel Zinc Yellow CR+3 (Made in U.S.A.) Length:300 QTY - 5/8"-18 x 1 1/4" 4375" Thread Size 14 UNC

4375" Thread Size 14 UNC Drive 5/8" Hex Drive Flange Design Built-in washer

and machinery adjustment applications

The deep internal hex drive provides positive torque engagement—ideal for electronics

Ensure the strength and longevity of your heavy-duty assemblies with our Thru-Hardened Medium Carbon Steel USS Flat Washers

Select your preferred length above and click "Add to Cart" to get dependable UNF hardware

Bulk 5/8"-18 L9 Hex Head Cap Screw – Fine Thread Alloy Steel Zinc Yellow CR+3 (Made in U.S.A.) Length:300 QTY - 5/8"-18 x 1 1/4" 4375" Thread Size 14 UNC5 8" 18 L9 Hex Head Cap Screw Fine Thread Alloy Steel Zinc Yellow CR+3 (Made in U. S. A.) Our 5 8" 18 L9 Hex Head Cap Screws bring unparalleled strength and reliability to high demand applications. These premium screws are manufactured in the USA from high grade alloy steel, offering an exceptional tensile strength of 180,000 PSI. Ideal for critical projects requiring enhanced durability, these screws meet the toughest standards for secure fastening