This M21 x 96mm Hex Head Cap Screw, crafted from premium 304 stainless steel, offers superior corrosion resistance and robust tensile strength for critical structural and mechanical applications.
| Standard | ISO 9001 |
| Material | 304 Stainless Steel |
| Finish | Galvanized |
| Grade | N/A |
| Size | M21 |
| Length | 96mm |
| Head Width | 21mm |
Engineered for reliability and performance, this M21 x 96mm Hex Head Cap Screw is manufactured from 304 stainless steel, a austenitic alloy renowned for its excellent corrosion resistance, particularly in harsh environments. The 21mm nominal diameter and 96mm length, combined with the 21mm hex head width, ensure secure and precise torque application for critical fastening operations. This material grade provides good strength at elevated temperatures and is non-magnetic, making it suitable for a wide range of industrial uses including marine, chemical processing, and food service equipment.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate tool (e.g., socket wrench) with a drive size matching the 21mm hex head. 2. Ensure the mating threads are clean and free from debris. 3. Thread the screw into the mating component, applying consistent torque until the desired clamping force is achieved, avoiding over-tightening.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ISO 9001 |
| 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) | 18.0 - 20.0% |
| Nickel (Ni) | 8.0 - 10.5% |
| Manganese (Mn) | 2.00% max |
| Bolt Size | Dry Torque (ft-lbs) | Lubricated Torque (ft-lbs) |
|---|---|---|
| M21 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M21 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Good |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using the wrong size wrench, leading to stripped head or inadequate torque. | Always use a correctly sized socket or wrench that fully engages the 21mm hex head for optimal force transfer. |
| Cross-threading the screw, damaging both the screw and the mating component's threads. | Start threading the screw by hand to ensure it engages the threads properly before applying tool torque. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural assembly in corrosive environments, Machinery and equipment manufacturing, Marine and offshore applications.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||