Engineered for robust performance, this M9 x 105mm Hex Head Cap Screw offers superior tensile strength and durability. Constructed from high-grade carbon steel, it ensures reliable load-bearing in critical structural and mechanical assemblies.
| Standard | ASTM A106 |
| Material | Carbon Steel |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M9 |
| Length | 105mm |
| Head Width | 21mm |
Specified by design engineers worldwide, this M9 x 105mm Hex Head Cap Screw is manufactured from premium carbon steel, offering exceptional tensile strength and shear resistance. The 21mm hexagonal head provides a large bearing surface for secure torque application and distribution, crucial for preventing material deformation. This metric-sized fastener is ideal for applications demanding high clamping forces and resistance to vibration, commonly found in heavy machinery, automotive manufacturing, and structural steel frameworks where reliability and load integrity are paramount. Its robust design ensures long-term performance under stress.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure mating threads are clean and free from debris. 2. Apply appropriate lubricant if specified by application requirements. 3. Tighten the cap screw to the manufacturer's recommended torque using a calibrated torque wrench.
| 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) |
|---|---|---|
| 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 |
|---|---|
| Over-tightening the fastener, which can strip threads or fracture the screw. | Always use a torque wrench and adhere to specified torque values. |
| Using the wrong size wrench, leading to cam-out and damaged hex heads. | Utilize a properly sized wrench or socket for the 21mm hex head. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Heavy machinery assembly, Automotive structural components, Structural steel connections.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||