18-8 stainless steel socket head screw - Wholesale from Manufacturers
We supply 18-8 stainless steel socket head screw in bulk for Wholesale and Manufacturers who demand dependable fasteners. Our screws feature AISI 304 grade stainless steel, excellent corrosion resistance, and consistent torque performance. The socket head design gives a clean, compact profile for tight spaces, while the hex drive minimizes cam-out during high-speed assembly. We offer precision-machined threads and tight tolerances to ensure reliable mating with standard nuts and studs. In bulk, we can price competitively and keep lead times short, making us a reliable partner for OEMs and distributors. Whether you need metric or inch sizes, coarse or fine pitches, we can customize packaging and labeling to meet your inventory systems. This 18-8 stainless steel socket head screw is ideal for food processing equipment, electrical enclosures, and outdoor hardware where rust protection matters. Contact us for Wholesale pricing and to connect with Manufacturers seeking steady supply.
18-8 stainless steel socket head screw Factory-Direct Excellence Outperforms the Competition
For global buyers, 18-8 stainless steel socket head screws offer corrosion resistance, strength, and machinability. The 304-grade stainless works well in electronics, machinery, and outdoor environments. Factory-direct supply delivers competitive pricing and shorter lead times, enabling faster product launches. Factory-direct excellence beats rivals with strict quality controls, consistent heat treatment, and tight tolerances. Key differentiators include certified raw materials, controlled forging and machining, passivation, coatings, and traceable lots. Flexible lengths, head styles, and packaging ensure reliable global supply. To maximize value, request material certificates, compliance statements, and test reports; ask for samples for fit and torque; confirm packaging for international shipping. A dependable supplier aligned with global standards reduces risk, shortens procurement cycles, and lowers total cost for critical components.
{ 18-8 stainless steel socket head screw Factory-Direct Excellence Outperforms the Competition}
| Specification | Value |
|---|---|
| Material / Grade | 18-8 stainless steel (304 stainless) – Austenitic stainless alloy commonly used for fasteners |
| Standard / Certification | DIN 912 socket head cap screws or ANSI/ASME equivalents; metric sizes M3–M12 |
| Chemical Composition (approx. wt%) | C ≤ 0.08, Mn ≤ 2.0, Si ≤ 1.0, P ≤ 0.045, S ≤ 0.030, Cr 18–20, Ni 8–14, N ≤ 0.10 |
| Yield Strength (0.2% offset) | ≈ 205 MPa |
| Tensile Strength | ≈ 515–725 MPa |
| Elongation at Break (room temp) | ≈ 40% |
| Density | 7.93 g/cm³ |
| Melting Point | Approximately 1,400–1,450 °C |
| Modulus of Elasticity | ≈ 193 GPa |
| Thermal Conductivity | ≈ 16.3 W/m·K at 100 °C |
| Coefficient of Thermal Expansion | ≈ 16.0–17.5 × 10⁻⁶ /K |
| Corrosion Resistance | Excellent general corrosion resistance; passivates in most environments; good in many chemicals; susceptible to chloride-induced pitting if exposed long-term without proper protection |
| Weldability | Good weldability for most applications; for welded assemblies, consider low-carbon variant (304L) to reduce sensitization |
| Socket Head Size Range (Metric) | M3×0.5 to M12×1.75; head diameters typically 5–14 mm; typical lengths 6–120 mm |
| Common Head Diameter (Approx.) | M3 ≈ 5.0 mm; M4 ≈ 6.0 mm; M5 ≈ 7.0 mm; M6 ≈ 9.0 mm; M8 ≈ 12.0 mm; M10 ≈ 14.0 mm |
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