Bulk 5/8"-18 Grade 8 Hex Cap Screws – Zinc Yellow CR+3, Made in USA – Monster Bolts NSPA Standards: Manufactured to DIN 9427

Standards: Manufactured to DIN 9427 / ISO 7380 for button head geometry and strength

especially in critical applications where accurate tensioning is mandatory

5" Thread Size 13 TPI Drive 3/8" Hex Drive Flange Design Built-in washer

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and compact assemblies where every millimeter matters

Bulk 5/8"-18 Grade 8 Hex Cap Screws – Zinc Yellow CR+3, Made in USA – Monster Bolts NSPA Standards: Manufactured to DIN 9427Product Overview Achieve high strength, fine thread clamping with Bulk 5 8" 18 Grade 8 Hex Cap Screws in a corrosion resistant zinc yellow CR+3 finish. These Made in USA UNF thread bolts are ideal for automotive assemblies, machinery, industrial equipment, and precision fixtures where tighter adjustment and enhanced vibration resistance are required. Manufactured from alloy steel to meet SAE J429 Grade 8 mechanical properties, these screws deliver