3/8 x 9 Carriage Bolts - Heavy-Duty Zinc-Plated Fasteners for Construction & Woodworking

Did you know 22% of construction delays stem from fastener failures? When your project demands reliability, settling for subpar 3/8 x 9 carriage bolts could cost you $4,500+ in unplanned downtime. Let’s fix that.

Why Our 3/8 x 9 Carriage Bolts Outperform Competitors

Our hot-dipped galvanized 3.5 inch carriage bolts deliver 150% longer corrosion resistance vs industry average. Precision-machined shoulders eliminate wobble – crucial for structural applications.

Head-to-Head: 3 Carriage Bolt Showdown

Custom Solutions for Unique Needs

Need 3 carriage bolts in odd lengths? Our CNC workshop ships custom batches in 72 hours flat. 98% on-time delivery rate since 2022.

Success Story: Bridgeport Stadium Installation

"Their 3.5 inch carriage bolts held 12-ton steel beams through Category 3 hurricanes" – J.C. Construction Project Lead

🚀 Limited Inventory Alert: Order 500+ 3/8 x 9 carriage bolts before Friday and get free expedited shipping + 5-year extended warranty!

Q: What makes 3/8 x 9 carriage bolts ideal for outdoor use?

Our triple-layer zinc coating protects against salt spray (ASTM B117 certified).

Q: Can I mix 3 carriage bolt lengths in one order?

Yes! Custom combos ship same-day with no minimums.