Durable & Heavy-Duty 1/4 x 4 Carriage Bolts for Woodworking, Fencing, and Construction

"The 3/8 x 9 models reduced assembly time by 32% while maintaining perfect load distribution. Zero failures after 18 months!"

- Project Manager Mike Reynolds

Q: What are the dimensions of a 1/4 x 4 carriage bolt?

A: A 1/4 x 4 carriage bolt has a 1/4-inch diameter shank and a 4-inch length. It is commonly used for fastening wood or metal components where a smooth, rounded head is preferred.

Q: What applications are suitable for a 3/8 x 9 carriage bolt?

A: A 3/8 x 9 carriage bolt, with its 3/8-inch diameter and 9-inch length, is ideal for heavy-duty construction, such as securing large timber beams or industrial equipment requiring extended grip range.

Q: How is a 3-inch carriage bolt typically used?

A: A 3-inch carriage bolt is often used in furniture assembly, fencing, or automotive projects where moderate length and a secure square-neck design are needed to prevent rotation during tightening.

Q: What materials are 3.5-inch carriage bolts made from?

A: Most 3.5-inch carriage bolts are made from steel, stainless steel, or zinc-plated materials. They are used in outdoor or high-moisture environments, such as decking or gate hardware.

Q: How do I choose between different carriage bolt sizes?

A: Select a carriage bolt size (e.g., 1/4 x 4, 3/8 x 9, 3.5-inch) based on load requirements, material thickness, and environmental conditions. Longer bolts like 3.5-inch suit thicker materials, while thicker diameters handle heavier weights.