· Product Overview

· Core Specifications

• Material: PA66 Engineering Plastic (Black)Offers excellent wear resistance, chemical stability (resists common oils/solvents), and impact resistance; lightweight (reduces equipment load).
• Manufacturing Standard: ISO 9001-Certified Injection Molding + Thread Tapping Process
  • Key Processes: PA66 granule mixing → Precision injection molding (knob body + knurled texture) → Internal thread tapping → Surface deburring.
  • Key Parameters:
    • Thread Specifications: Metric (M3–M8; customizable to UNC standards)
    • Diameter: 15–25mm (standard: 20mm)
    • Length: 10–20mm (standard: 15mm)
    • Dimensional Tolerance: ±0.1mm (ensures fit with mating screws)
  • Grip Performance: Knurled texture provides ≥30% higher friction than smooth knobs (for slip-free manual operation).

· Application Scenarios

• Electronic Equipment: Adjusting 3D printer tensioners, securing DIY electronic enclosure panels, or positioning lab instrument components.
• Furniture & Hardware: Tightening adjustable shelving brackets, folding table locks, or cabinet door hinges.
• DIY & Hobby Projects: Building custom workbenches, model vehicle parts, or workshop jigs (tool-free assembly).
• Small Machinery: Manual adjustment of conveyor belt tensioners, hobbyist robotics joints, or packaging equipment knobs.
• Retail Fixtures: Adjusting display stand heights or securing pop-up booth components.

· Production Process Introduction

1. Raw Material Preparation: Mix PA66 plastic granules (adjusting hardness for grip and durability).
2. Injection Molding: Inject molten PA66 into precision molds to shape the cylindrical body and integrated knurled texture.
3. Internal Thread Tapping: Drill and tap full-length internal threads (compatible with standard metric/UNC screws).
4. Deburring: Remove sharp edges (for safe hand operation) and inspect texture uniformity.
5. Quality Inspection: Verify thread accuracy (via thread gauges) and test grip friction; reject defective units.
6. Sorting & Packaging: Group knobs by thread size/length for organized inventory.

· Packaging and Shipping Methods

• Packaging: Knobs are packed in resealable plastic bags (200 pieces per bag); bulk orders are sealed in corrugated boxes (with inner padding to prevent texture damage).
• Shipping: Flexible logistics options:
  • Express Delivery (DHL/FedEx/UPS: 3–5 business days)
  • Air Freight (7–10 business days)
  • Sea Freight (20–30 business days)All shipments include full tracking and damage insurance.

· Process

· Frequently Asked Questions (FAQ)

• MOQ (Minimum Order Quantity): 1,000 pieces for standard designs; small sample packs (50–100 pieces) are available for fit testing.
• Lead Time: Standard lead time is 7–10 working days after order confirmation; expedited production (5–7 working days) is available for urgent orders (additional fees apply).
• Customization Capability: Full customization is supported—we can adjust knob size, thread type (Metric/UNC), texture pattern (e.g., finer knurling), or color (e.g., gray) based on your requirements. Our engineering team will validate mold feasibility for custom designs.