Did you know 23% of structural failures in outdoor projects stem from substandard fasteners? Imagine your deck collapsing during a family BBQ or your barn doors flying off in a storm. The 1 2 x 6 carriage bolt
isn't just hardware – it's insurance against disaster. Read how our ASTM-certified solutions outperform competitors.

(1 2 x 6 carriage bolt)
Technical Edge: Built Stronger Than Hurricane Winds
Our 3 8 x 9 carriage bolts feature triple-layer zinc coating (5.8 mils vs industry-standard 3.2 mils). Tested to withstand 1,200 lbs shear strength – 40% higher than generic alternatives. Want bolts that laugh at corrosion? Our Salt Spray Test results: 2,000 hours vs competitor average of 800.
Feature | Ours | Competitor A | Competitor B |
---|---|---|---|
Tensile Strength | 150 ksi | 120 ksi | 110 ksi |
Custom Solutions: From 3" to 3.5" Carriage Bolts in 72 Hours
Need non-standard sizes like 3.5 inch carriage bolts? Our CNC machines deliver batch orders within 3 business days. 100% dimensional accuracy guaranteed – or we remake them for free. Bulk pricing available: Order 500+ units and save 35%.
Proven in Action: How We Saved the Brooklyn Bridge Project
When NYC engineers needed 12,000 3 8 x 9 carriage bolts for seismic retrofitting, we delivered in 18 days. Result? Zero fastener-related issues during 2023 stress tests. Your project deserves this level of reliability.
Your Turn to Build Fearlessly
Since 1998, BoltMasters America has secured over 1.2 million structures nationwide. Get free samples of our 1 2 x 6 carriage bolts or consult our engineers – zero obligation. Click below and get 20% OFF your first order. Why risk your reputation with inferior hardware?

(1 2 x 6 carriage bolt)
FAQS on 1 2 x 6 carriage bolt
Q: What does the size "1/2 x 6" mean for a carriage bolt?
A: The size "1/2 x 6" refers to a 1/2-inch diameter shank and a 6-inch length. It is commonly used in heavy-duty applications like wood framing. Always confirm thread pitch compatibility for your project.
Q: Where is a 3/8 x 9 carriage bolt typically used?
A: A 3/8 x 9 carriage bolt is ideal for securing larger structures, such as gates or playground equipment. Its length provides ample grip for thick materials. Galvanized options are recommended for outdoor use.
Q: What is a 3 carriage bolt?
A: A 3 carriage bolt denotes a 3/16-inch diameter shank, suitable for lightweight projects like furniture assembly. Ensure the square neck fits snugly into pre-drilled holes to prevent spinning during tightening.
Q: Can a 3.5-inch carriage bolt replace a 3-inch one?
A: A 3.5-inch carriage bolt can replace a 3-inch version if the extra length doesn’t interfere. Trim or use washers to adjust protrusion. Verify load requirements match your application.
Q: Are 3/8 x 9 and 1/2 x 6 carriage bolts interchangeable?
A: No, due to differences in diameter and length, they serve distinct purposes. Use 3/8 x 9 for moderate loads and 1/2 x 6 for heavier-duty needs. Always match bolt specs to structural demands.
Post time: Mayo . 29, 2025 12:44