Engineered from aerospace-grade Titanium Grade 5 (Ti-6Al-4V), this M21x27mm hex head cap screw offers exceptional strength-to-weight ratio and superior corrosion resistance for the most demanding industrial applications.
| Standard | ISO 9001 |
| Material | Titanium Grade 5 |
| Finish | Zinc Plated |
| Grade | N/A |
| Size | M21 |
| Length | 27mm |
| Head Width | 18mm |
Purpose-built for heavy-duty applications, this M21x27mm hex head cap screw is manufactured from Titanium Grade 5 (Ti-6Al-4V). This alloy exhibits a minimum tensile strength of 895 MPa and a yield strength of 827 MPa, ensuring robust performance under extreme loads and challenging environmental conditions. The head width is precisely machined to 18mm for optimal tool engagement and torque transfer. Its inherent biocompatibility and resistance to galvanic corrosion make it suitable for critical assemblies in aerospace, marine, chemical processing, and medical device manufacturing where reliability and longevity are paramount.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure mating threads are clean and free of debris. 2. Apply a suitable anti-seize compound if operating in corrosive environments or prone to galling. 3. Tighten the screw to the manufacturer's specified torque value using a calibrated torque wrench to avoid over-stressing the material.
| 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 | Excellent |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Overtightening, leading to thread stripping or material fatigue. | Utilize a calibrated torque wrench and adhere strictly to specified torque values. |
| Using incompatible tools which can damage the hex head or the fastener. | Employ high-quality, correctly sized sockets or wrenches designed for hex head fasteners. |
A: This Hex Head Cap Screw, Titanium Grade 5 is manufactured from Titanium Grade 5.
A: Aerospace structural components, Marine hardware and assemblies, High-performance automotive systems, Chemical processing equipment, Medical implants and instrumentation.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||