This M21 x 92mm Hex Head Cap Screw, constructed from robust carbon steel, is engineered for superior strength and reliability. Its precise dimensions and durable material make it an essential component for demanding industrial assemblies.
| Standard | ASTM A106 |
| Material | Carbon Steel |
| Finish | Zinc Plated |
| Grade | N/A |
| Size | M21 |
| Length | 92mm |
| Head Width | 13mm |
A proven choice for industrial professionals, this M21 x 92mm Hex Head Cap Screw is manufactured from high-grade carbon steel, ensuring exceptional tensile strength and resistance to wear. The 13mm head width provides ample surface area for torque application, making it suitable for heavy-duty bolting applications. This fastener conforms to stringent industrial standards, guaranteeing consistent performance and compatibility with standard M21 tooling. Its robust construction makes it ideal for structural connections, machinery assembly, and applications subjected to significant mechanical stress.
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. Thread the cap screw into the designated hole by hand for at least two full turns to prevent cross-threading. 3. Tighten the cap screw to the specified torque using an appropriate wrench or torque wrench, ensuring even pressure.
| 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 |
| 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) |
|---|---|---|
| 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 |
|---|---|
| Using an undersized wrench, leading to stripping the hex head. | Always use a wrench that precisely fits the 13mm head width of the cap screw. |
| Applying excessive torque, potentially deforming the screw or the mating material. | Consult engineering drawings or specifications for the correct torque value and utilize a calibrated torque wrench. |
| Cross-threading the screw, damaging both the screw and the tapped hole. | Start threading the screw by hand to confirm alignment before applying any tool torque. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Heavy machinery assembly, Structural steel connections, Automotive manufacturing, Bridge construction.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||