This M5 x 71mm Hex Head Cap Screw, forged from robust carbon steel, delivers superior tensile strength and durability. Its substantial 26mm head width ensures excellent torque transfer and secure assembly in critical industrial applications.
| Standard | ASTM A106 |
| Material | Carbon Steel |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M5 |
| Length | 71mm |
| Head Width | 26mm |
Engineered for reliability and performance, this M5 x 71mm Hex Head Cap Screw features a nominal diameter of 5mm and a total length of 71mm. Constructed from high-grade carbon steel, it offers exceptional tensile strength and shear strength, making it suitable for load-bearing joints and high-stress environments. The 26mm hex head provides a large surface area for leverage, facilitating precise tightening with standard hex tools and ensuring a secure connection capable of withstanding significant operational forces in machinery, structural assemblies, and equipment manufacturing.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate hex wrench for the 26mm head width. 2. Insert the M5 x 71mm cap screw into the pre-drilled and tapped hole or through-hole with a nut. 3. Tighten the screw to the required torque specification using a calibrated torque wrench, ensuring a secure and stable joint.
| 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) |
|---|---|---|
| M5 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M5 | 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 undersized or oversized hex wrench, leading to head stripping. | Always use the correct size hex wrench that precisely fits the 26mm head width of the cap screw. |
| Over-tightening the screw, which can lead to thread damage or material fatigue. | Refer to the design specifications for the recommended torque value and use a calibrated torque wrench for accurate tightening. |
| Using the wrong grade of fastener for the application's load requirements. | Ensure the carbon steel grade of this M5 x 71mm cap screw is appropriate for the intended tensile and shear loads. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Machinery and equipment assembly, Structural frameworks and supports, Automotive and aerospace 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. | ||||