This M12 x 129mm hex head cap screw, crafted from premium 304 stainless steel, offers superior corrosion resistance and robust tensile strength. Engineered for reliability in diverse environments.
| Standard | ASME B18 |
| Material | 304 Stainless Steel |
| Finish | Galvanized |
| Grade | N/A |
| Size | M12 |
| Length | 129mm |
| Head Width | 28mm |
Trusted by engineers across multiple sectors, this M12 x 129mm hex head cap screw is manufactured from high-grade 304 stainless steel, renowned for its excellent corrosion resistance in acidic and chloride-laden environments. With a nominal diameter of M12 and a total length of 129mm, it features a precisely machined hex head with a width of 28mm for secure torque application. The material's inherent strength and durability make it ideal for structural assemblies, outdoor equipment, marine applications, and food processing machinery where hygiene and longevity are paramount. This fastener meets stringent industrial standards for load-bearing capacity and thread integrity.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure mating threads are clean and free of debris. 2. Apply appropriate lubricant or anti-seize compound if required by the application environment. 3. Use a calibrated torque wrench to tighten the screw to the manufacturer's specified torque value for the M12 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) | 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) |
|---|---|---|
| M12 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M12 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Good |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Over-torquing the fastener, leading to thread stripping or material fatigue. | Always use a calibrated torque wrench and adhere to specified torque values for the fastener size and application. |
| Using a standard steel screw in a corrosive environment, resulting in premature rust and failure. | Select 304 stainless steel fasteners for applications exposed to moisture, chemicals, or marine conditions. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural steel connections, Outdoor equipment and machinery, Marine and coastal installations, Food processing and pharmaceutical equipment.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||