This M21x49mm Hex Head Cap Screw, crafted from high-performance Titanium Grade 5, offers exceptional strength, lightweight design, and unparalleled corrosion resistance, making it ideal for demanding environments.
| Standard | ASTM A106 |
| Material | Titanium Grade 5 |
| Finish | Plain |
| Grade | N/A |
| Size | M21 |
| Length | 49mm |
| Head Width | 16mm |
Engineered for reliability and performance, this M21x49mm Hex Head Cap Screw utilizes Titanium Grade 5 (Ti-6Al-4V) alloy, renowned for its superior tensile strength (up to 895 MPa) and fatigue strength. The specific dimensions of M21 thread diameter, 49mm length, and a 16mm hex head width ensure precise fitting and torque application. Its inherent biocompatibility and resistance to saltwater and corrosive chemicals make it indispensable in aerospace, medical implants, marine hardware, and high-performance automotive sectors where material integrity under extreme conditions is paramount. This fastener provides a robust and lightweight solution for critical structural connections.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure the mating threads are clean and free from debris. 2. Apply a suitable anti-seize compound to the threads if recommended for the application. 3. Thread the cap screw by hand to avoid cross-threading. 4. Use a calibrated torque wrench to tighten the cap screw to the manufacturer's specified torque value for the application, ensuring even pressure distribution.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASTM A106 |
| Tensile Strength | Standard Commercial Spec |
| Yield Strength | Standard Commercial Spec |
| Hardness | Varies by specific batch |
| Bolt Size | Dry Torque (ft-lbs) | Lubricated Torque (ft-lbs) |
|---|---|---|
| M21 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M21 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Moderate |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Over-tightening the titanium cap screw, potentially leading to thread stripping or material fatigue. | Always use a calibrated torque wrench and adhere to recommended torque specifications for the specific application and material. |
| Using incompatible lubricants or anti-seize compounds that can react with titanium and compromise its integrity. | Consult material compatibility charts or the fastener manufacturer for approved lubricants and anti-seize compounds specifically designed for Titanium Grade 5. |
A: This Hex Head Cap Screw, Titanium Grade 5 is manufactured from Titanium Grade 5.
A: Aerospace structural components, High-performance automotive engines and chassis, Medical implants and surgical instruments, Marine hardware and offshore equipment, Chemical processing equipment.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||