Engineered for superior strength and corrosion resistance, this M14 x 21mm Hex Head Cap Screw is manufactured from high-grade 304 stainless steel, ensuring reliable performance in demanding industrial and outdoor environments.
| Standard | ISO 9001 |
| Material | 304 Stainless Steel |
| Finish | Passivated |
| Grade | N/A |
| Size | M14 |
| Length | 21mm |
| Head Width | 17mm |
Purpose-built for heavy-duty applications, this M14 x 21mm Hex Head Cap Screw offers exceptional tensile strength and durability due to its 304 stainless steel construction. This austenitic alloy provides excellent resistance to atmospheric corrosion, general chemical attack, and oxidation, making it suitable for marine, food processing, and chemical handling systems. The hex head design allows for high torque application with standard wrenches, ensuring a secure and robust joint. With a thread pitch suitable for M14 applications and a compact 21mm length, it is engineered for precise fitment in a wide range of mechanical assemblies requiring reliable structural integrity.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate wrench size (17mm for this M14 screw). 2. Ensure both mating surfaces are clean and free of debris. 3. Thread the screw into the designated hole by hand to confirm alignment and prevent cross-threading. 4. Apply torque using the wrench until the desired clamping force is achieved, avoiding overtightening.
| 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) |
|---|---|---|
| M14 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M14 | 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. | Always use a 17mm wrench for this M14 hex head cap screw to avoid stripping the head. |
| Cross-threading the screw. | Hand-thread the screw initially to ensure proper alignment before applying power tools or significant torque. |
| Overtightening, leading to material fatigue or stripping. | Use a torque wrench to achieve specified torque values for critical applications; avoid excessive force. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural steel connections, Machinery and equipment assembly, Outdoor and marine hardware, Chemical processing equipment, Food and beverage industry components.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||