Engineered for extreme environments, this M21x15mm Hex Head Cap Screw is crafted from high-performance Titanium Grade 5. Offering exceptional strength and corrosion resistance, it ensures reliable fastening in critical industrial assemblies.
| Standard | ASME B18 |
| Material | Titanium Grade 5 |
| Finish | Galvanized |
| Grade | N/A |
| Size | M21 |
| Length | 15mm |
| Head Width | 32mm |
A proven choice for industrial professionals, this M21x15mm Hex Head Cap Screw boasts a nominal diameter of M21 and a precise length of 15mm. Constructed from Titanium Grade 5 (Ti-6Al-4V), it exhibits outstanding tensile strength, excellent corrosion resistance in aggressive media, and a superior strength-to-weight ratio compared to steel fasteners. The 32mm hex head provides ample surface area for torque application with standard tooling. Ideal for aerospace, marine, chemical processing, and high-performance automotive sectors where material integrity and weight savings are paramount.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure threads on the mating component are clean and free of debris. 2. Hand-thread the cap screw to verify alignment and prevent cross-threading. 3. Tighten using a calibrated torque wrench to the specified torque value for M21 Titanium Grade 5, ensuring not to exceed recommended limits.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASME B18 |
| 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 fastener failure. | Always use a calibrated torque wrench and consult fastener torque charts specific to Titanium Grade 5 for the correct tightening procedure. |
| Using incompatible tools or lubricants that can damage the titanium surface or compromise the fastener's integrity. | Utilize appropriate tools designed for titanium fasteners and apply thread lubricants specifically recommended for titanium to prevent galling and ensure proper torque. |
A: This Hex Head Cap Screw, Titanium Grade 5 is manufactured from Titanium Grade 5.
A: Aerospace structural components, Marine hardware and subsea equipment, 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. | ||||