Engineered for superior strength and reliability, this M13 x 55mm Hex Head Cap Screw, crafted from high-grade carbon steel, ensures secure and durable fastening in critical industrial applications.
| Standard | ASME B18 |
| Material | Carbon Steel |
| Finish | Galvanized |
| Grade | N/A |
| Size | M13 |
| Length | 55mm |
| Head Width | 20mm |
Designed for demanding industrial environments, this M13 x 55mm Hex Head Cap Screw features a nominal diameter of M13, a length of 55mm, and a substantial 20mm hexagonal head width for enhanced torque application. Constructed from robust carbon steel, it offers excellent tensile strength and resistance to shear forces, making it ideal for heavy-duty machinery, structural assembly, and high-stress joint applications. Its precise manufacturing ensures consistent performance and reliable load-bearing capabilities in sectors requiring robust mechanical connections.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate socket wrench or hex key for the 20mm head width. 2. Ensure the mating threads are clean and free of debris. 3. Thread the cap screw into the receiving component by hand to prevent cross-threading, then tighten to the specified torque using calibrated tooling.
| 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 |
| 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) |
|---|---|---|
| M13 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M13 | 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 the wrong size hex key, leading to stripped heads. | Always use the correctly sized hex key (20mm for this screw) to ensure proper engagement and prevent damage to the head. |
| Over-tightening, which can lead to thread stripping or fastener failure. | Adhere to the recommended torque specifications for the application to avoid overstressing the fastener and mating components. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Heavy machinery assembly, Structural steel fabrication, Automotive and transportation components.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||