Titanium Bolt M5x10 12 16 18 20 25 30 35 40 45 50 55 60 65 70mm DIN912 Column Hex Socket Head Screw for Bike Motorcycle, Pitch 0.8mm, by Tianswer

Universal high-tensile Aerospace Ti-6Al-4V Grade 5 titanium M5 DIN 912 (ISO 4762) cylindrical socket head cap screws engineered for bicycle cockpit components, derailleur mounts, motorcycle fairing brackets, and lightweight mechanical assemblies.

DIN 912 / ISO 4762 Heavy-Duty Cylindrical Head Architecture

The standardized DIN 912 cylindrical socket head profile provides maximum mechanical rigidity across precision assemblies. Featuring an 8.5mm diameter cylindrical head with a full 5.0mm head height, it incorporates a deep, precision-broached 4mm internal hex drive. Unlike shallow button or low-profile heads, the deep hex pocket ensures superior tool bit engagement, preventing drive cam-out and stripped hex sockets under repeated torque cycles.

Full Thread vs. Precision Unthreaded Shank Engineering

To deliver optimized mechanical performance across varying joint configurations:

• Lengths ≤ 25mm: Fully threaded along the entire shank, maximizing thread engagement in blind tapped holes such as bottle cage bosses, derailleur hangers, and lightweight brackets.
• Lengths > 25mm: Engineered with a smooth unthreaded shank and a standardized ~22mm thread engagement. When clamping through-bolted assemblies (such as suspension pivot links or mounting brackets), the unthreaded shank bridges the critical shear plane, providing maximum cross-sectional load-bearing area and superior resistance to cyclic shear fatigue.

Aerospace Grade 5 (Ti-6Al-4V) Strength & Weight Advantage

Precision CNC-machined from certified Grade 5 Ti-6Al-4V titanium alloy, these fasteners offer an ultimate tensile strength of 950–1050 MPa (matching or exceeding Class 10.9 high-tensile steel) while slashing weight by roughly 45%. Furthermore, titanium's self-healing oxide ceramic barrier delivers total immunity to road salt, mud, moisture, and rider perspiration, ensuring bolts never seize or rust.

Key Applications

• Bicycles (Road, Gravel, MTB): Handlebar stem faceplates, steerer tube pinch bolts, water bottle cage mounts, front/rear derailleur cable clamps and braze-on adapters, brake lever and shifter handlebar clamps, seatpost collars, and pannier rack/fender eyelets.
• Motorcycles & Powersports: Windscreen mounting screws, fairing stay brackets, instrument cluster mounts, ECU brackets, and cable guide retainers.
• Precision Engineering & RC: Drone motor mounts, 3D printer frame stiffeners, and robotics chassis joints requiring high torque-to-weight ratios.

Specifications & Dimensions

Material: Certified Aerospace Ti-6Al-4V (TC4) Titanium Alloy, Grade 5
Standard: DIN 912 / ISO 4762 Socket Head Cap Screw
Thread Size: M5
Thread Pitch: 0.8mm (Standard Metric Coarse)
Head Diameter: 8.5mm
Head Height: 5.0mm
Drive Type: 4mm Allen Key / Internal Hex Drive
Threading Profile: Full thread (≤ 25mm length); Partial thread with ~22mm thread length (> 25mm length)
Available Lengths: 10mm, 12mm, 16mm, 18mm, 20mm, 23mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm, 70mm
Available Finishes: Natural Titanium, PVD Vacuum-Coated Gold, Rainbow, Burn Blue, PVD Deep Black

Installation & Torque Guidelines

Always inspect female threads for debris prior to installation. Apply a light dab of anti-seize paste or synthetic grease to the thread flanks to prevent titanium-on-aluminum or titanium-on-steel galling. For bicycle cockpit and bottle cage components, torque to 5.0–6.0 N·m (44–53 in-lb), taking care never to exceed the torque rating stamped on your component. For heavy mechanical applications, torque up to 7.0 N·m (62 in-lb). To learn more about fastener selection, shank geometry, and thread rolling integrity, read our Ultimate Guide to Choosing Titanium Fasteners.

Price is for 1 bolt.