Engineered for superior strength and corrosion resistance, this M21x68mm Hex Head Cap Screw is crafted from Grade 5 Titanium. Ideal for extreme conditions and demanding industrial applications.
| Standard | ISO 9001 |
| Material | Titanium Grade 5 |
| Finish | Passivated |
| Grade | N/A |
| Size | M21 |
| Length | 68mm |
| Head Width | 30mm |
Designed for demanding industrial environments, this Hex Head Cap Screw boasts exceptional mechanical properties derived from its Titanium Grade 5 construction. Exhibiting a tensile strength of approximately 895 MPa and a yield strength around 830 MPa, it offers a superior strength-to-weight ratio compared to steel alternatives. The M21 nominal diameter, coupled with a 68mm length and a robust 30mm head width, ensures secure and reliable fastening. Its inherent corrosion resistance makes it ideal for marine, aerospace, chemical processing, and high-performance automotive sectors where extreme environments necessitate robust and lightweight solutions.
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. Engage the cap screw with the threaded hole, hand-tightening initially. 3. Using a calibrated torque wrench, tighten the screw to the manufacturer's specified torque value for the M21 size and application, ensuring even pressure distribution.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ISO 9001 |
| 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 screw | Always use a calibrated torque wrench and adhere to recommended torque specifications to prevent thread stripping or fastener damage. |
| Using incompatible tools | Utilize tools made of hardened steel or carbide to prevent damage to the hex head during tightening and loosening. |
A: This Hex Head Cap Screw, Titanium Grade 5 is manufactured from Titanium Grade 5.
A: Aerospace structural components, High-performance automotive engine assemblies, Marine hardware and subsea 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. | ||||