Titanium fasteners—including bolts, screws, nuts, washers

Titanium Fasteners

Titanium fasteners—including bolts, screws, nuts, and washers—are the preferred hardware for applications where high strength, low weight, and total resistance to environmental degradation are required. While stainless steel fasteners are common, titanium fasteners are used when the cost of failure or the weight penalty of steel is too high.

They are primarily manufactured through Cold Heading (for smaller sizes) or Hot Forging (for larger/high-strength bolts) followed by precision thread rolling.

1. Common Grades & Specifications

Fastener selection is almost always a choice between Grade 2 (for chemistry/corrosion) and Grade 5 (for structural strength).

2. Available Head Styles & Drive Types

Titanium is versatile enough to be machined into any standard fastener configuration.

3. Thread Manufacturing: Cut vs. Rolled

How the threads are made is the single most important factor for titanium bolt safety.

Rolled Threads (Preferred): The metal is squeezed into shape. This compresses the grain structure, making the threads much stronger and significantly more resistant to fatigue. All aerospace and racing bolts use rolled threads.

Cut Threads: Material is removed by a lathe. This "cuts" the grain flow, creating weak points at the root of the thread. These are generally only used for low-load decorative or chemical applications.

1. "What is 'Galling' and how do I prevent it with titanium bolts?"

The Problem: Titanium has a high friction coefficient. If you tighten a titanium nut onto a titanium bolt too quickly without lubrication, they can "cold-weld" together instantly, becoming permanently stuck

The Solution: Always use Anti-Seize lubricant (usually nickel or copper-based) during installation. This ensures smooth torque and allows for future removal.

2. "Are titanium bolts as strong as Grade 12.9 steel bolts?"

The Answer: No. While Grade 5 Titanium is roughly equivalent to a Grade 8.8 steel bolt, it is not quite as strong as a "Ultra-High Strength" 12.9 steel bolt. However, it will never rust, whereas 12.9 steel is highly prone to corrosion.

3. "Can I use titanium fasteners in an aluminum frame?"

The Answer: Yes, but with caution. Titanium and aluminum are relatively close on the galvanic scale, but in saltwater environments, the aluminum may still corrode. Using an anti-corrosion paste or anodized titanium can help mitigate this.

4. "What is the 'Torque' setting for titanium?"

The Answer: Because titanium is more elastic (stretchy) than steel, torque values are usually lower than for an equivalent steel bolt. Over-torquing can stretch the bolt beyond its yield point. Always refer to a titanium-specific torque chart.

5. "Why are titanium bolts colored?"

The Answer: Like wire and rod, fasteners are often Anodized. This isn't just for looks; the oxide layer provides a slight increase in surface hardness and can act as a dry lubricant to help prevent galling.