AISI 304 Stainless Steel Socket Head Cap Screw
Manufacturing Process
Our screws are made with strict, reliable steps to ensure top quality:
- Material Sourcing: We use high-quality AISI 304 stainless steel that satisfies international requirements (ASTM A240). Every batch is examined to ensure the proper chemical composition (nickel for strength, chromium for corrosion resistance).
- Cold Heading: Unlike heat-formed steel, cold heading increases tensile strength (≥515 MPa) and durability by compressing the steel’s structure.
- Thread Rolling: To produce a smoother, denser surface that resists stripping and holds firmly under stress, threads are rolled rather than cut.
- Precision Machining: To ensure a precise fit with standard hex keys and no cross-threading problems, CNC lathes form the hex socket and chamfer with a very little margin for error.
- Quality Checks: Each screw passes three tests: measurements of dimensions, an examination of the material composition, and more than 200 hours of salt-spray testing to verify corrosion resistance. Only qualified products ship out.
Material Benefits & Customization
1. Why AISI 304 Stainless Steel Stands Out
- Rust and Corrosion Proof: Creates a protective layer on its surface, making it perfect for outdoor, coastal, or humid conditions (it lasts five to ten times longer than carbon steel screws).
- Temperature Resistant: It functions well between -200°C and 300°C, making it ideal for industrial ovens or freezers without degrading.
2. Flexible Customization Options
We tailor screws to your exact needs:
- Dimensions: 6mm to 300mm in length and M3 to M30 in diameter; precision tools have tighter tolerances (±0.05mm).
- Threads: coarse, fine, or custom pitches; metric (ISO) or imperial (UNC/UNF).
- Finishes: PTFE coating (anti-seizing for vibration-prone installations), passivation (reinforces protection), or electropolishing (additional corrosion resistance).
- Designs: To suit your installation space, choose different drive types (Torx, Phillips) or head forms (countersunk, button head).
Key Advantages of Our Socket Head Cap Screw
- Perfect Fit Every Time: Tight tolerances reduce rework time by removing alignment issues in precision machines.
- Longevity and Cost-Saving: slightly more expensive initially but 50–70% less expensive to maintain and replace over time (no frequent replacements like zinc-plated screws).
- One Screw for Many Uses: There is no need to purchase separate fasteners for various projects because it can be used for industrial, outdoor, sanitary, and tooling purposes.
- Simple to Install and Maintain: Installation is flush and interference-free using a regular hex key. In high-vibration installations, only yearly loosening checks are necessary.
Why Choose KENENG As Your Supplier
To provide the greatest fastener solutions, we integrate knowledge, quality, and support:
Decades of CNC Machining Expertise
With years of experience in high-precision hardware CNC lathe machining, the company has served a variety of industries, including medical devices and aerospace. Our staff is skilled at creating fasteners that satisfy your performance requirements.
100% Quality Assurance
We inspect every step with advanced tools:
- Test incoming materials for composition and hardness.
- Check dimensions with precision measuring equipment during production.
- Verify corrosion resistance and load capacity before delivery.
Competitive Pricing
Stable partnerships with raw material suppliers let us offer fair prices without sacrificing quality. We provide quick quotes (within 24 hours) for both standard and custom orders, passing cost savings directly to you.
Professional Engineering Support
Whether you need 100 prototype screws or 100,000 mass-production units, our engineers are here to help:
- Advise on the best size, material, or finish for your project.
- Collaborate on custom designs for unique requirements.
- Provide full technical docs and compliance certificates(ASTM, ISO, RoHS).
- Offer on-site installation guidance if needed.
Application Fields
- Industrial Manufacturing: Safeguard hydraulic equipment, gearboxes, and conveyor components (low-profile heads prevent blocking moving parts).
- Outdoor Infrastructure: Construct docks, railings, and solar mounts to prevent damage from rain and salt air.
- Hygienic Equipment: Assemble medical equipment and food processing lines that adhere to stringent safety regulations.
- Precision Tooling: Create CNC parts, jigs, and molds (strict tolerances guarantee consistent manufacturing quality).
