This M12 x 109mm Hex Head Cap Screw, crafted from superior 316 stainless steel, offers exceptional corrosion resistance and robust mechanical strength for critical industrial applications.
| Standard | ASTM A106 |
| Material | 316 Stainless Steel |
| Finish | Passivated |
| Grade | N/A |
| Size | M12 |
| Length | 109mm |
| Head Width | 34mm |
A proven choice for industrial professionals, this M12 x 109mm Hex Head Cap Screw is engineered from premium 316 stainless steel, renowned for its superior resistance to pitting and crevice corrosion, particularly in saline and acidic environments. The substantial 34mm head width ensures effective torque transfer and a secure, stable joint. Its metric coarse thread (M12) provides reliable fastening in a wide array of machinery, structural components, and marine hardware applications where durability and long-term performance are paramount.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure the mating threads are clean and free of debris. 2. Hand-thread the cap screw to verify proper engagement and alignment. 3. Tighten to the specified torque using an appropriate wrench, ensuring even pressure distribution.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASTM A106 |
| 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) |
|---|---|---|
| M12 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M12 | 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 wrench, leading to fastener head damage or inadequate tightening. | Always use a wrench that precisely matches the head width (34mm) to ensure proper torque application and prevent cam-out. |
| Over-tightening, which can strip threads or weaken the joint. | Refer to torque charts for the specific material and application, and use a calibrated torque wrench for precise tightening. |
A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.
A: Marine hardware and shipbuilding, Chemical processing equipment, Food and beverage machinery, Outdoor structural assemblies.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||