Bulk 5/8" Hex Lag Screws Stainless Steel 316 (A4)

Marine-Grade, Corrosion-Resistant Fasteners for Heavy-Duty Wood Connections

Strengthen your marine, chemical, and outdoor projects with our premium 5/8"-5 Hex Lag Screws, crafted from 316 (A4) stainless steel. These lag screws—often called lag bolts—feature a 5/8" diameter and a coarse 5 TPI (threads per inch), providing exceptional holding power in wood while offering superior corrosion resistance in harsh conditions.

The hex head design allows easy installation using a wrench or impact driver. With coarse threads and a sharp point, these screws ensure maximum grip in wood, but remember to pre-drill pilot holes to prevent splitting and ensure proper alignment. These robust, marine-grade screws are perfect for securing large beams, constructing waterfront structures, or handling heavy loads in demanding environments.

Key Benefits of Our Stainless Steel 316 Hex Lag Screws

• Marine-Grade Corrosion Resistance: 316 (A4) stainless steel resists rust, pitting, and corrosion, even in saltwater and chemical-rich environments.
• High Holding Power: The 5/8" diameter and 5 TPI coarse threads deliver reliable, long-lasting connections in wood.
• Heavy-Duty Strength: Suitable for large-scale, high-load projects that demand maximum stability and durability.
• Easy Installation: The hex head design allows driving with standard tools—just pre-drill your pilot hole first.
• Secure Connections: Once installed, these lag screws create stable, semi-permanent bonds resistant to loosening.

Why Choose Our Bulk Lag Screws?

• Bulk Discounts: Ideal for marine professionals, contractors, and large-scale projects seeking volume savings.
• Wholesale Availability: Perfect for B2B customers requiring substantial quantities over time.
• Quality Material: 316 (A4) stainless steel ensures superior corrosion resistance and long-term strength.
• Versatile Use: Suitable for marine construction, chemical processing facilities, decks, fences, and more.

Proper Pilot Holes and Installation Tips

Selecting the correct pilot hole size is crucial for preventing wood splitting and ensuring maximum holding power. For detailed guidance, refer to our Lag Bolt Pilot Hole Size Blog.

• Pre-Drilling: Follow recommended pilot hole sizes for best results.
• Use Proper Tools: An impact driver or wrench is best. Avoid over-tightening to prevent head or thread damage.
• Ensure Correct Alignment: Drill pilot holes accurately to ensure maximum holding power and proper installation.

Product Specifications

• Diameter: 5/8"
• Thread Pitch: 5 TPI (Coarse Thread)
• Head Style: Hexagonal Head for easy driving
• Material: 316 (A4) Stainless Steel
• Standards Compliance: Meets common industry standards for lag screws

Ideal Applications

• Marine Construction: Perfect for docks, piers, and other saltwater-exposed structures.
• Chemical Processing: Ideal for environments where chemical exposure demands top-tier corrosion resistance.
• Outdoor Installations: Great for decks, fences, and pergolas in harsh climates.
• Heavy Construction: Excellent for projects requiring maximum holding power and long-term reliability.

Buy in Bulk and Build with Confidence

Opt for our 5/8"-5 Hex Lag Screws in 316 (A4) stainless steel for secure, long-lasting connections in the most demanding environments. With bulk and wholesale pricing, Monster Bolts provides top-quality marine-grade fasteners that stand the test of time. For advice on correct pilot hole sizes, don’t forget to explore our Lag Bolt Pilot Hole Size Blog.

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