This M9 x 131mm carbon steel hex head cap screw offers superior tensile strength and wear resistance. Featuring a 13mm head width, it's designed for secure, high-torque fastening in demanding industrial environments.
| Standard | DIN 933 |
| Material | Carbon Steel |
| Finish | Passivated |
| Grade | N/A |
| Size | M9 |
| Length | 131mm |
| Head Width | 13mm |
Built to exacting engineering tolerances, this M9 x 131mm hex head cap screw is fabricated from high-grade carbon steel, ensuring exceptional tensile strength and load-bearing capacity. The robust construction and precise dimensions, including a 13mm head width for optimal wrench engagement, make it ideal for critical structural connections and heavy machinery assembly. Its inherent hardness and resistance to deformation provide long-term reliability under extreme stress and vibration, meeting stringent industrial performance requirements.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate wrench or socket for the 13mm hex head. 2. Align the screw with the pre-tapped hole or mating component. 3. Thread the screw by hand for the initial few turns to prevent cross-threading, then apply torque with the wrench until snug. 4. Tighten to the required torque specification, ensuring a secure and stable joint.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | DIN 933 |
| Tensile Strength | Standard Commercial Spec |
| Yield Strength | Standard Commercial Spec |
| Hardness | Varies by specific batch |
| Carbon (C) | 0.28 - 0.55% |
| Manganese (Mn) | 0.60 - 0.90% |
| Phosphorus (P) | 0.04% max |
| Sulfur (S) | 0.05% max |
| Bolt Size | Dry Torque (ft-lbs) | Lubricated Torque (ft-lbs) |
|---|---|---|
| M9 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M9 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Moderate |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using an incorrect size wrench or socket, leading to head damage. | Always use the correct size wrench or socket (13mm) for the hex head to ensure proper engagement and prevent stripping. |
| Cross-threading the screw during installation. | Start threading the screw by hand for several turns to confirm alignment and prevent cross-threading before applying torque. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Heavy machinery assembly, Structural steel connections, Automotive component mounting.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||