TITANIUM STEM BOLT M5 X 20MM STANDARD HEAD RAINBOW (EACH)
The Titanium Stem Bolt M5 x 20mm Standard Head Rainbow offers premium aerospace-grade strength, weight savings, and a striking oil-slick finish to instantly elevate your cockpit.
When fine-tuning your bicycle, every gram and every detail counts. The Titanium Stem Bolt M5 x 20mm Standard Head Rainbow is engineered for riders who refuse to compromise between high-end performance and custom style. Crafted from premium Grade 5 (6Al-4V) titanium alloy, this bolt provides the exceptional tensile strength required to keep your components securely locked in place, while weighing roughly half as much as a conventional steel fastener. Whether you are shedding weight from a road cockpit, securing sleek accessories, or upgrading a custom build, this component delivers reliable clamping force under the most demanding riding conditions.
Beyond its impressive mechanical properties, this titanium bolt is completely immune to rust and atmospheric corrosion, ensuring your front end remains clean and structurally sound season after season. The striking rainbow anodised finish—often referred to as oil-slick—adds a distinct, premium aesthetic that changes hue depending on the light angle. Supplied individually with a matching washer to distribute load forces evenly across your components, this bolt features a precision-machined standard Allen key drive that resists rounding out during high-torque installations. It is the perfect blend of structural integrity and visual flair for any discerning cyclist looking to personalise their ride.
Key Features
Grade 5 Titanium Construction: Manufactured from aerospace-grade 6Al-4V titanium alloy, offering an incredible strength-to-weight ratio that easily outperforms standard steel hardware.
Corrosion Proof: Inherently resistant to rust, road salt, moisture, and sweat, ensuring the threads will not seize and the finish will not degrade over time.
Vibrant Rainbow Finish: Features a durable, multi-toned oil-slick anodised coating that provides a high-end customised look to your bike's cockpit.
Load-Distribution Washer: Comes complete with a dedicated titanium washer to protect your component surfaces from scoring and ensure optimal torque transfer.
Precision Hex Drive: Engineered with a clean, standard Allen key head interface to prevent tool slippage and rounded heads during critical assembly.
Specifications
| Attribute | Specification |
| Material | Grade 5 (6Al-4V) Titanium Alloy |
| Thread Size | M5 |
| Length | 20mm |
| Head Style | Standard Hex (Allen Key Head) |
| Finish | Anodised Rainbow / Oil-Slick |
| Inclusions | Single bolt with matching washer |
| Application | Select bicycle stems, faceplates, top caps, and integrated accessory mounts |
✅ Why This IS For You
✅ The Weight Weenie: You are actively counting grams and looking to shave critical weight from your cockpit without sacrificing structural safety.
✅ The Custom Bike Builder: You want to add a unique splash of colour to your bike to match oil-slick hubs, chains, or frame graphics.
✅ All-Weather Commuters: You ride frequently in rain, mud, or coastal environments and want to permanently eliminate ugly, rusted bolt heads.
✅ Premium Parts Enthusiasts: You appreciate precision-machined, high-tensile fasteners that can handle repeated, accurate torque settings.
❌ Why This May NOT Be For You
❌ Oversized M6/M7 Stem Users: Many modern stems utilize M6 or M7 threads for their main clamping bolts; if your specific hardware calls for a larger size, this M5 bolt will not fit.
❌ Shorter Thread Requirements: At 20mm in length, this is a relatively long M5 bolt. Be sure to check your minimum thread engagement, as faceplates or top caps often require shorter 10mm or 12mm lengths.
❌ Budget-Focused Builders: If you simply need a cheap, basic fastener and do not care about weight savings or premium rust prevention, standard steel is more economical.
BFC PRO TIP
Titanium hardware behaves differently to steel. Because titanium is prone to "galling" (friction welding) when threaded into alloy or other titanium parts, never install this bolt dry. Always apply a thin layer of high-quality anti-seize lubricant or a specialised bicycle grease to the threads and under the bolt head before loading it into your stem or accessory mount. When tightening, always use a calibrated torque wrench to bring it to the manufacturer's exact specification—this ensures a permanent hold without damaging your expensive carbon or alloy components!
