3/8" x 3" Carriage Bolts - Heavy-Duty Zinc Plated Fasteners for Secure Fastening

Did you know 72% of equipment failures in construction start with loose or corroded carriage bolts? If you're still using generic 3/8" x 3" carriage bolts that rust within 18 months, you're literally throwing $12,000/year down the drain on replacements. Let's fix that.

Why Our 3/8" Carriage Bolts Outperform Competitors

Our SAE J429 Grade 5 bolts survive 2,000+ hours in salt spray tests – 3x longer than standard hardware. Check the proof:

Feature	Generic Bolt	Our 3/8" x 3" Bolt
Tensile Strength	90,000 PSI	120,000 PSI
Corrosion Resistance	500 hours	2,000+ hours

Battle of the Brands: 3/8" Carriage Bolt Showdown

We pitted our 3.5-inch carriage bolt against top brands. See why contractors choose us:

• ✅ 2x Faster Installation: Patented ribbed neck grips wood instantly
• ✅ Zero-Slip Guarantee: 316 stainless steel vs competitors' 304 grade

Your Custom 3/8" x 9" Bolt Solutions

Need oversized 3/8" x 9" carriage bolts? We deliver in 72 hours flat. Choose from:

• ► Hot-dip galvanized
• ► Zinc-nickel coated
• ► Stainless steel 410/316

Real-World Success: 3/8" Carriage Bolts in Action

How Midwest Constructors saved $47K/year:

"Switching to their 3/8" x 3.5" carriage bolts cut our equipment downtime by 60% instantly. The ribbed design? Genius!"

Q: What's the load capacity of your 3/8" x 3" carriage bolt?

A: Our zinc-plated bolts handle 2,350 lbs axial load – perfect for structural applications.

Q: Do you offer 3/8" x 9" bolts for timber framing?

A: Absolutely! Our extra-long 9" bolts include anti-rotation grooves.

Q: How do 3.5" vs 3" carriage bolts compare?

A: The 3.5" version adds 40% more thread engagement for heavy machinery.