This M8x90mm hex head cap screw, crafted from durable carbon steel, offers exceptional tensile strength and reliability for critical fastening applications. Its robust design ensures secure and lasting connections in demanding environments.
| Standard | DIN 933 |
| Material | Carbon Steel |
| Finish | Passivated |
| Grade | N/A |
| Size | M8 |
| Length | 90mm |
| Head Width | 20mm |
Manufactured under strict quality controls, this M8x90mm hex head cap screw is engineered from high-grade carbon steel, providing superior tensile and shear strength. With a nominal diameter of M8 and a length of 90mm, it features a 20mm hex head for efficient torque application with standard wrenches. The carbon steel composition offers good hardness and wear resistance, making it suitable for general-purpose industrial assemblies, machinery construction, and structural frameworks where consistent performance and load-bearing capacity are paramount.
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 size (20mm) for the hex head. 2. Thread the screw into the pre-tapped hole or through the aligned components. 3. Tighten the screw to the recommended torque specification for the M8 size and material, ensuring a secure joint without over-stressing the components.
| 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) |
|---|---|---|
| M8 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M8 | 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 the wrong size wrench, leading to head stripping. | Always use a 20mm hex wrench for M8 cap screws to ensure proper engagement and prevent damage to the head. |
| Over-tightening the screw, potentially causing thread damage or component deformation. | Adhere to the manufacturer's recommended torque specifications for M8 carbon steel fasteners to achieve optimal clamping force without compromising integrity. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Machinery and Equipment Assembly, Structural Frameworks, Automotive and Industrial Repair.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||