Engineered for demanding environments, this M9 x 129mm hex head cap screw boasts superior corrosion resistance due to its 316 stainless steel construction. Ideal for critical fastening in harsh industrial settings.
| Standard | DIN 933 |
| Material | 316 Stainless Steel |
| Finish | Plain |
| Grade | N/A |
| Size | M9 |
| Length | 129mm |
| Head Width | 12mm |
Purpose-built for heavy-duty applications, this M9 x 129mm hex head cap screw features a robust M9 thread size and a substantial 129mm length for deep engagement. The head width measures 12mm, ensuring ample torque transfer with standard tooling. Constructed from premium 316 stainless steel, it offers exceptional resistance to pitting, crevice corrosion, and general corrosion, making it the preferred choice for marine, chemical processing, food and beverage, and offshore applications where aggressive media or saltwater exposure is a concern. Its high tensile strength and durability ensure reliable performance under significant load and environmental stress.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select appropriate torque wrench and socket for the 12mm hex head. 2. Ensure mating threads are clean and free of debris. 3. Apply specified torque in a controlled manner, avoiding over-tightening.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | DIN 933 |
| Tensile Strength | 75,000 psi (515 MPa) |
| Yield Strength | 30,000 psi (205 MPa) |
| Elongation in 2 in. | 40% min |
| Hardness | Rockwell B95 max |
| Carbon (C) | 0.08% max |
| Chromium (Cr) | 16.0 - 18.0% |
| Nickel (Ni) | 10.0 - 14.0% |
| Molybdenum (Mo) | 2.0 - 3.0% |
| 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 | Excellent |
| Marine / Saltwater | Excellent |
| Chemical / Acidic | Good |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using the wrong size socket, leading to stripped hex head. | Always confirm the socket size matches the 12mm head width precisely. |
| Applying excessive torque, potentially damaging the fastener or workpiece. | Adhere to the recommended torque specifications for the application and material. |
A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.
A: Marine hardware and structural components, Chemical processing equipment, Food and beverage industry machinery, Offshore oil and gas platforms.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||