· Product Overview

· Core Specifications

• Material: 304 Stainless SteelFood-safe (compliant with FDA 21 CFR 175.300), corrosion-resistant (72-hour salt spray test passed), tensile strength ≥515 MPa.
• Manufacturing Standard: ISO 9001-Certified
  • Key Processes: CNC Turning (hex/square head + external male thread) → Precision Tapping (internal female thread) → Surface Passivation (corrosion protection) → Deburring (smooth edges).
  • Standard Parameters:
    • Thread Configuration: Customizable male/female thread pairs (e.g., M12 male → M8 female, 1/4"NPT male → 1/8"NPT female)
    • Head Type: Hexagonal / Square (compatible with standard wrenches)
    • Dimensional Tolerance: ±0.02mm (ensures thread fit and leak resistance)
  • Surface Finish: Passivated polished (non-porous, easy to clean, rust-resistant).

· Application Scenarios

• Fluid & Gas Systems: Pneumatic air line connections, hydraulic fluid routing, water/chemical pipe fitting conversions.
• Industrial Equipment: Machine tool fluid lines, conveyor system component connections, automation equipment thread adapters.
• Food & Beverage Processing: Sanitary pipe fittings (304 SS meets food-contact standards), packaging machine fluid connections.
• Medical & Laboratory Equipment: Sterile fluid transfer lines, diagnostic device component adapters.
• DIY & Maintenance Projects: General-purpose plumbing repairs, custom equipment thread compatibility adjustments.

· Production Process Introduction

1. Raw Material Sourcing: Procure certified 304 stainless steel round bars (traceable to material quality standards).
2. CNC Turning: Use precision CNC lathes to shape the hex/square head and machine the external male thread to exact specifications.
3. Precision Tapping: Drill and tap the internal female thread (matched to the target male thread for leak-free fit).
4. Surface Passivation: Apply a chemical passivation treatment to enhance 304 SS’s natural corrosion resistance.
5. Deburring & Finishing: Remove sharp edges from threads and heads (prevents tool damage and ensures safe handling).
6. Quality Inspection: Verify thread fit (via thread gauges), dimensional accuracy (CMM scans), and passivation integrity.

· Packaging and Shipping Methods

• Packaging:
  • Individual units: Sealed in anti-scratch, moisture-proof plastic bags (protects passivated finish).
  • Bulk orders: Packed in foam-lined partitioned boxes (prevents thread damage and collision) + moisture-absorbing desiccants.
• Shipping Options:
  • Express Delivery (DHL/FedEx: 3–5 business days for samples).
  • Air Freight (7–10 business days for small batches).
  • Sea Freight (20–25 business days for bulk orders).All shipments include full tracking and damage insurance.

· Process

· Frequently Asked Questions (FAQ)

• MOQ (Minimum Order Quantity): 500 pieces for standard thread configurations; 200 pieces for custom thread pairs (with valid technical drawings).
• Lead Time: 7–10 working days (standard production); expedited production (5–7 working days) is available for urgent orders (additional fees apply).
• Customization Capability: We support full customization—adjust thread sizes (Metric/Imperial), head type (hex/square), material (316 SS for extreme corrosion), or add sealing features (e.g., O-ring grooves) based on your requirements. Our engineering team validates designs for thread compatibility and leak resistance.