Did you know 68% of construction delays stem from substandard fasteners? When your project demands reliability, every 3/8 x 1 carriage bolt becomes mission-critical. Yet 43% of buyers report wasting $1,200+ annually on mismatched sizes like 3/8 x 9 carriage bolts or undersized 3 carriage bolts. Let's fix that.

(3 8 x 1 carriage bolt)
Engineering Excellence in Every 3/8" Carriage Bolt
Our hot-dip galvanized 3.5 inch carriage bolts outperform competitors where it counts:
- ✔️ 180 ksi tensile strength (industry avg: 150 ksi)
- ✔️ ±0.002" diameter precision (3x tighter than ASTM standards)
- ✔️ Salt-spray tested for 2,000+ hours corrosion resistance
3/8 Carriage Bolt Showdown: Value Beyond Price
Feature | Big Box Stores | Premium Brands | Our Solution |
---|---|---|---|
Price per 100 bolts | $28.50 | $47.80 | $34.99 |
Metalurgy | Grade 2 | Grade 5 | Grade 8 |
Coating | Zinc-plated | Mechanical Galv | Hot-Dip + Sealer |
Warranty | 30 days | 1 year | Lifetime |
Your Project, Your Rules: Custom Solutions
Need 3/8 x 9 carriage bolts for timber framing? Special 3 carriage bolts with square necks? Our CNC-driven production line delivers:
- ⚡ 72-hour custom orders (industry avg: 3 weeks)
- 📐 0.5" to 12" lengths available
- 🎨 8+ coating options including black oxide
Proven Performance: Where Our Bolts Excel
See how our 3.5 inch carriage bolts delivered results:
- 🏗️ 12% faster assembly for Kansas City bridge project
- 🚜 Zero fastener failures in 5-year ag equipment study
- 🏠 92% cost reduction vs. OEM parts in modular homes
Time to Build Smarter
Why gamble with generic fasteners? Since 1996, we've supplied 38 million carriage bolts to contractors who value precision. Get your FREE sample pack (includes 3/8 x 1 & 3/8 x 9 carriage bolts) + 15% first-order discount. Ships same-day.
Claim Your Precision Bolts Now →
(3 8 x 1 carriage bolt)
FAQS on 3 8 x 1 carriage bolt
Q: What is the difference between a 3/8 x 1 carriage bolt and a 3/8 x 9 carriage bolt?
A: The difference lies in length: 3/8 x 1 indicates a 1-inch-long bolt, while 3/8 x 9 is 9 inches long. Both share the same 3/8-inch diameter and carriage bolt design. Length determines their suitability for specific projects.
Q: Can a 3/8-inch carriage bolt be used for outdoor applications?
A: Yes, if it has a corrosion-resistant coating like galvanized or stainless steel. Ensure the material matches environmental conditions. Always check manufacturer specifications for durability.
Q: What is the typical use case for a 3.5-inch carriage bolt?
A: A 3.5-inch carriage bolt is ideal for thicker materials, such as structural wood beams or heavy-duty framing. Its length provides sufficient threading for secure fastening. Pair with appropriate nuts and washers for stability.
Q: How do I identify a genuine 3/8 x 1 carriage bolt?
A: Look for the rounded, domed head and a square neck beneath it to prevent spinning. Measure the shank diameter (3/8 inch) and length (1 inch). Manufacturer markings may also indicate compliance with industry standards.
Q: Are 3-inch carriage bolts available in different materials?
A: Yes, common materials include carbon steel, stainless steel, and zinc-plated variants. Material choice depends on load requirements and environmental factors. Verify strength grades (e.g., ASTM or SAE) for critical applications.
Post time: מאי . 28, 2025 12:38