Hollow Standoff

A hollow standoff is a precision-machined spacer with an internal passage, designed to create reliable spacing between components while allowing for wire routing, airflow, or bolt pass-through. Hollow standoff spacers are commonly used in electronics, PCB mounting, LED panel installations, and industrial enclosures where weight, insulation, or open access is crucial.

We offer a wide variety of hollow threaded standoffs, non-threaded hollow spacers, and through-hole standoffs in round, hex, and flanged designs. Whether you need a hollow male-female standoff or a lightweight aluminum hollow spacer, we support full customization to match your application needs.

Product Features

• Internal Through-Hole or Threaded Options
  Available in fully open (non-threaded) or internally threaded hollow designs

• Multiple Connection Types
  Supports male-female, female-female, and male-male configurations

• Various Shapes & Sizes
  Includes round, hex, square, low-profile, and micro hollow standoffs

• Ideal for Weight-Sensitive Assemblies
  Perfect for LED fixtures, PCB mounting, and sensor installations

• Metric and Imperial Threads Available
  Thread sizes from M2–M12, or #4–#10 UNC/UNF, fully customizable

Manufacturing Process

All hollow metal standoffs are produced using high-precision CNC machining, followed by threading, drilling, and surface finishing. Our process ensures structural integrity while maintaining hollow alignment.

Typical Process Flow:

1. Material cutting and bar preparation

2. CNC turning (OD shaping + drilling hollow core)

3. Internal threading (if applicable)

4. Deburring and polishing

5. Surface treatment

6. Full dimensional and thread inspection

7. Cleanroom packaging (optional for electronics use)

We support both low-volume prototyping and bulk CNC manufacturing, ensuring flexibility and consistency.

Material Selection

Choose from a wide range of materials based on weight, strength, conductivity, or corrosion resistance:

• Aluminum (6061 / 7075) – Lightweight and easy to anodize

• Stainless Steel (SS303 / SS304 / SS316) – Strong and corrosion-resistant

• Brass (C3604) – Excellent conductivity and easy to machine

• Carbon Steel – High strength with various plating options

• Optional: Titanium, Copper, Plastics (for insulating applications)

Surface Treatment Options

To enhance durability and appearance, we offer various finishes:

• Anodizing – For aluminum (black, clear, red, blue, etc.)

• Zinc Plating – Yellow, black, or blue passivated

• Nickel / Chrome Plating – For brass or steel parts

• Passivation – Stainless steel protection

• Powder Coating / Black Oxide – Optional for aesthetic or protection

All finishes are compliant with RoHS, REACH, and available with SGS/MSDS documentation upon request.

Precision & Inspection Capabilities

We implement rigorous quality control standards throughout production:

• Thread Standards: Metric (M2–M12), UNC/UNF, or custom

• Dimensional Tolerance: ±0.01mm to ±0.05mm

• Concentricity Control: Especially critical for hollow cores

• Full Inspection: Includes visual, dimensional, thread gauge testing

• Material Certification: Available with all shipments

• ISO 9001:2015 certified quality system

Application Fields

Hollow standoff spacers are widely used across industries that demand light weight, airflow, or routing space:

• PCB and motherboard mounting

• LED panel and strip light installations

• Server racks and control cabinets

• Battery holders and sensor installations

• Robotics and automation chassis

• Aerospace and medical devices (lightweight and compact designs)

• Wiring pass-throughs in electronic enclosures

Whether for ventilation, fastening, or cable routing, custom hollow standoffs offer efficient, professional-grade support for modern assemblies.

Frequently Asked Questions (FAQ)

Q1: What is the difference between hollow standoffs and solid standoffs?
A: Hollow standoffs have an internal passage (drilled through or partially), making them lighter and ideal for cable routing or airflow. Solid standoffs provide greater structural strength.

Q2: Can I request a non-threaded hollow spacer?
A: Yes, we offer both threaded and non-threaded through-hole hollow spacers in custom lengths and diameters.

Q3: Do you offer custom thread standards or dimensions?
A: Absolutely. We support custom CNC machining based on your drawings or samples, including metric and inch threads.

Q4: What’s your typical lead time?
A: Standard parts: 7–10 working days. Custom hollow standoffs: 10–20 days depending on complexity and quantity.

Q5: Can I get free samples?
A: Free samples of standard types are available. For custom parts, sample fees may apply based on tooling or programming needs.