[500 BULK] Hex Nuts SAE Fine Thread Grade 8 Steel Zinc Yellow (Made in USA) 5/8-18

Engineered for strength and reliability, this Hex Nut delivers high-performance fastening for demanding assemblies. The SAE fine-thread design and Grade 8 steel construction offer superior load-bearing capacity, while the zinc yellow finish provides corrosion resistance and easy lubrication in general service. Proudly Made in USA, this 5/8-18 hex nut is ready for automotive, industrial, and equipment applications.

Key specifications

• Thread type: SAE Fine Thread (5/8-18)
• Material: Grade 8 steel
• Finish: Zinc Yellow plated
• Diameter & thread pitch: 5/8 in diameter, 18 threads per inch
• Country of origin: Made in USA
• Type: Hex nut

Why choose this hex nut?

Designed for durability, it resists galling and provides consistent clamp load in high-stress environments. The fine thread improves adjustability and take-up under load, while the Grade 8 alloy delivers excellent shear and tensile strength. The zinc yellow finish adds corrosion protection for long service life in moderate outdoor and indoor settings.

Applications

Ideal for automotive assemblies, machinery, equipment, and structural fittings where a high-strength fastener is required.

Note: Always pair with a compatible nut and bolt, and follow torque specifications for Grade 8 hardware to ensure optimal performance.

Add to your toolkit today and ensure secure, reliable fastening with these Made in USA, Grade 8 hex nuts.