· Product Overview

• Solid 316L stainless steel construction (standard); optional: 304 SS, 6061-T6 aluminum, 17-4PH, or titanium
• Deep, full-form internal thread (standard: M16×2.0, M20×2.5; depth ≥12 mm) — cut via precision form tool for optimal load distribution and thread strength
• Flanged shoulder (Ø25 mm × 3 mm thick) — provides axial stop, prevents pull-through, and distributes clamping force evenly
• Mirror-polished outer surface (Ra ≈ 0.15 μm) — ensures smooth insertion into housings and zero galling
• Tight tolerances: ≤0.005 mm thread pitch deviation, ≤0.008 mm concentricity (OD to thread axis) — critical for repeatable torque and alignment

· Core Specifications

· Application Scenarios

• Medical Devices
  → Housing inserts for surgical instruments (e.g., trocar handles, endoscope mounts)
  → Sensor module retention in diagnostic equipment
  → Implantable device chassis fasteners (316L + electropolish)
• Robotics & Automation
  → Joint axle retainers in collaborative arms
  → Motor housing reinforcement (prevents thread stripping in aluminum castings)
  → Tool changer interface nuts
• Industrial Equipment
  → Control panel mounting inserts (for IP67-rated enclosures)
  → Pneumatic cylinder rod end adapters
  → Vibration-dampened mounting in CNC spindles
• Aerospace & Defense
  → UAV payload mounting interfaces
  • Avionics rack fasteners (EMI-safe variants available)
  • Satellite mechanism locking nuts
• Consumer Electronics
  → High-end camera lens mount inserts
  → EV charger connector housings
  → Premium audio equipment chassis fasteners

• Monolithic = Zero Weak Points — unlike press-fit or bonded inserts
• Deep Full Thread = High Clamping Force — 2–3× stronger than standard nuts
• Flanged Shoulder = Axial Stop + Load Distribution — prevents housing damage
• 316L + Passivated = Sterile & Corrosion-Proof — survives autoclaving, salt spray, and cleaning agents

· Production Process Introduction

· Packaging and Shipping Methods

• Standard Packaging: 1 bushing per anti-static PE bag; 200 per EPE tray; 2,000 per cardboard box.
• Bulk Options: 5,000–50,000+ units per pallet (custom foam inserts available).
• Shipping Methods:
  • 📦 Express (DHL/FedEx/UPS): 3–7 business days (global)
  • ✈️ Air Freight: 5–10 days (orders ≥ 1,000 pcs)
  • 🚢 Sea Freight: 20–35 days (container loads)
• White-Label Services:
  • Laser engraving (logo, part #, thread spec)
  • Branded blister packs or retail boxes
  • Kitted solutions (e.g., “Mounting Kit”: 100 bushings + M16 bolts + torque guide)

· Frequently Asked Questions (FAQ)

• Standard configuration (316L, M16×2.0, Ø25×18 mm): 200 pcs
• Custom thread/material/size: 500 pcs
• Samples: 5 pcs free for verified B2B customers (shipping paid)

• In-stock designs: 5–7 working days
• Custom CAD/sketch: 7–10 working days (includes FAI, torque validation, and passivation)
• Rush service (≤5 days): Available for +20% fee

• Threads: M5–M30, NPT, BSPP, UNF, metric fine/coarse
• OD: Ø15 mm to Ø50 mm
• Height: 10 mm to 30 mm
• Features: Keyway, O-ring groove, hex drive recess, magnetic insert, or dual-thread (internal + external)
• Materials: 316L (standard), 304 SS, 6061-T6 Al, 17-4PH, Ti-6Al-4V
• Finishes: Passivated (standard), electropolished, black PVD, or anodized

• Threads are cut (not rolled) — ensuring full minor diameter and root radius per ISO 965-1
• We provide: CMM thread profile report (major/minor/pitch diameters), torque-to-yield data, and fatigue cycle logs
• Proof strength: ≥520 MPa (316L); ultimate tensile: ≥620 MPa

• Medical: FDA 21 CFR 177.1010, USP Class VI, ISO 10993-5
• Aerospace: AS9100 documentation, NADCAP-ready processes
• Cleanroom: Class 10,000 packaging; outgassing data (TML < 0.5%, CVCM < 0.1%)
• ESD-safe: Surface resistivity 10⁸–10¹⁰ Ω/sq (for Al variants)

· Why Choose YITECH?