Engineered for demanding environments, this M21 x 125mm Titanium Grade 5 hex cap screw delivers exceptional strength-to-weight ratio and superior corrosion resistance.
| Standard | ASTM A106 |
| Material | Titanium Grade 5 |
| Finish | Galvanized |
| Grade | N/A |
| Size | M21 |
| Length | 125mm |
| Head Width | 20mm |
Purpose-built for heavy-duty applications, this M21 x 125mm hex head cap screw is precision manufactured from Aerospace Grade 5 Titanium alloy (Ti-6Al-4V). This material offers a minimum tensile strength of 950 MPa and excellent corrosion resistance in harsh chemical and saltwater environments. The M21 nominal diameter, coupled with a 125mm length and a robust 20mm hex head width, ensures reliable load distribution and secure fastening in critical structural and mechanical assemblies. Ideal for aerospace, marine, chemical processing, and high-performance automotive sectors.
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 of debris. 2. Apply a suitable anti-seize compound to the threads to prevent galling, especially in critical applications. 3. Tighten the hex head cap screw to the specified torque using a calibrated torque wrench, ensuring even pressure is applied.
| 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 | Excellent |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Over-tightening leading to thread stripping or component damage. | Always adhere to recommended torque specifications and use a calibrated torque wrench for accurate tightening. |
| Failure to use anti-seize compound with titanium fasteners, risking galling. | Apply a high-quality anti-seize compound specifically designed for titanium to the threads before installation. |
A: This Hex Head Cap Screw, Titanium Grade 5 is manufactured from Titanium Grade 5.
A: Aerospace structural components, Marine hardware and fittings, Chemical processing equipment, High-performance automotive assemblies.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||