Engineered for superior performance, this M4 x 25mm hex head cap screw is manufactured from premium 304 stainless steel, offering exceptional corrosion resistance and tensile strength for critical fastening applications.
| Standard | ISO 9001 |
| Material | 304 Stainless Steel |
| Finish | Anodized |
| Grade | N/A |
| Size | M4 |
| Length | 25mm |
| Head Width | 32mm |
Specified by design engineers worldwide, this M4 x 25mm hex head cap screw is constructed from 304 stainless steel, renowned for its excellent corrosion resistance, strength, and durability in diverse environments. The metric thread size of M4 ensures compatibility with standard metric components, while the 25mm length provides adequate grip for various joint thicknesses. The substantial 32mm head width distributes load effectively, minimizing stress on mating materials and enhancing joint integrity. Its robust construction makes it ideal for marine, food processing, chemical, and outdoor applications where rust and degradation are primary concerns.
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 (typically 7mm for M4). 2. Insert the cap screw into the pre-drilled and tapped hole. 3. Tighten the cap screw to the specified torque, ensuring a secure and stable joint.
| 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) |
|---|---|---|
| M4 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M4 | 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 damage. | Always use the correctly sized wrench (7mm for M4 hex head) to prevent cam-out and damage to the hex socket. |
| Over-tightening, which can lead to thread stripping or material fatigue. | Adhere to recommended torque specifications for the application to avoid over-stressing the fastener and mating components. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Marine hardware and fittings, Food and beverage processing equipment, Chemical processing plants, Outdoor and architectural fixtures.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||