This M20 x 61mm Hex Head Cap Screw, crafted from premium 316 stainless steel, offers superior corrosion resistance. Engineered for demanding applications, it ensures robust and reliable fastening.
| Standard | ASTM A106 |
| Material | 316 Stainless Steel |
| Finish | Passivated |
| Grade | N/A |
| Size | M20 |
| Length | 61mm |
| Head Width | 13mm |
Manufactured under strict quality controls, this M20 x 61mm Hex Head Cap Screw features a nominal diameter of M20 and a length of 61mm. The head width measures 13mm. Constructed from 316 stainless steel, it exhibits exceptional resistance to pitting and crevice corrosion, even in chloride-rich environments, making it ideal for marine, chemical processing, and food industry applications. Its excellent mechanical properties ensure high tensile strength and durability for critical structural joints and assemblies.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Clean the mating surfaces and the screw threads of any contaminants. 2. Apply a suitable lubricant or anti-seize compound to the threads if recommended for the application. 3. Insert the screw and engage the threads by hand for several turns to prevent cross-threading. 4. Tighten the screw 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) |
|---|---|---|
| M20 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M20 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Excellent |
| Chemical / Acidic | Good |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Cross-threading due to improper initial engagement. | Always start thread engagement by hand for at least 2-3 full turns before applying a tool. |
| Over-tightening leading to thread stripping or material fatigue. | Use a calibrated torque wrench and adhere to the manufacturer's recommended torque specifications for the specific application and materials being joined. |
| Using the wrong grade of stainless steel for corrosive environments. | Ensure the 316 grade is specified for applications exposed to saltwater, chemicals, or high humidity to guarantee corrosion resistance. |
A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.
A: Marine hardware and offshore structures, Chemical processing equipment, Food and beverage processing machinery, Industrial assemblies in corrosive atmospheres.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||