This M9 x 55mm hex head cap screw, crafted from premium 316 stainless steel, offers superior corrosion resistance and exceptional tensile strength for demanding applications. Its robust design ensures secure and reliable fastening in harsh environments.
| Standard | ASME B18 |
| Material | 316 Stainless Steel |
| Finish | Zinc Plated |
| Grade | N/A |
| Size | M9 |
| Length | 55mm |
| Head Width | 24mm |
Engineered for reliability and performance, this M9 x 55mm hex head cap screw is manufactured from marine-grade 316 stainless steel, renowned for its outstanding resistance to pitting, crevice corrosion, and general corrosion, especially in chloride-rich environments. The M9 thread size ensures precise engagement with M9 tapped holes or nuts, while the 55mm length provides ample grip and clamping force for medium-duty assemblies. The generous 24mm head width facilitates high torque application with standard wrenches, ensuring a secure and lasting joint. Ideal for applications exposed to saltwater, chemicals, or elevated temperatures, where material integrity is 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 (nut or tapped hole) are clean and free of debris. 2. Hand-thread the cap screw to verify proper alignment and prevent cross-threading. 3. Use a calibrated torque wrench to tighten the cap screw to the manufacturer's recommended torque specification for the M9 thread size and application.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASME B18 |
| 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 |
|---|---|
| Over-tightening the cap screw, leading to thread stripping or fastener failure. | Always use a calibrated torque wrench and adhere to recommended torque values for the specific M9 thread size and application. |
| Using the wrong size wrench, which can round off the hex head and prevent proper tightening. | Utilize a wrench that precisely fits the 24mm hex head to ensure optimal force transfer and prevent damage. |
A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.
A: Marine hardware and fittings, Chemical processing equipment, Food and beverage processing machinery, Offshore oil and gas platforms, Architectural fixtures in corrosive environments.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||