Aluminum Spacers Manufacturer USA

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OEM Aluminum Spacer Supplier & Manufacturer USA, Europe, And Asia

What is an Aluminum Spacer?

Aluminum hex spacers, round spacers, and hollow spacers are very simple parts, and their meaning is also simple: to keep a distance between components. Manufacturers and suppliers use them to separate PCBs, mount panels, and space fasteners in assemblies. They keep the right distance between parts and help you put things together easily.

These spacers come as solid standoffs, hollow sleeves, and short spacer studs. We can manufacture threaded and unthreaded, in metric and imperial sizes. We sell these components in different sizes, finishes, and quantities to the USA, Europe, and across the globe.

Who Buys This (Manufacturer, Supplier, OEMs, Electronics Houses)

Manufacturers

They use spacers in production runs to keep parts at exact distance. They save assembly time and ensure repeatable fit.

Suppliers

They stock common sizes and finishes for fast delivery.

OEMs

They design spacers into final products for durability and safety. Spacers control clearance, prevent shorts, and reduce vibration transfer.

Electronics Houses

They use spacers mainly for PCB mounting and insulation. Hollow unthreaded sleeves let a bolt pass through without contacting the board. That prevents shorts and protects solder joints.

Key Features

Material and Alloy Options

Aluminum have many different grades. Each grade have different identity. We help clients pick the right one based on strength, corrosion, machinability, and price.

  • 6061-T6 – The most balanced and widely used
  • 7075-T6 – Highest strength
  • 2024 – Good fatigue resistance
  • 5052 – Excellent corrosion resistance, softer
  • 5083 – Marine-grade with high weldability

Finish Options

Clear Anodize

Clear anodizing makes the natural look and adds a thin and hard layer. It resists wear and light rust. It is a good choice when you need a clean look. It is mostly used in control panels and indoor boxes.

Black Anodize

Make part dark in black color and hides fingerprints and looks clean. It is best when part is visible outside.

Hard Anodize

This makes a thicker and tougher surface. It will protect from damage, and it's good when parts are used a lot.

Passivated

It will stop rust after machining. It removes leftover materials from the surface. And keeps the part stable over time. It is useful when another metal touches it.

Light Bead Blast

Bead blasting gives a soft, textured surface. It hides small tool marks and creates a smooth, even look. Use this when you want a matte finish that is easy to grip.

Powder Coat

This adds color and thick protection. It’s best when you care about looks and extra protection from rust.

Types and Variants

Hex Spacers

A hex has six flat sides. Installers tighten them with a wrench for positive torque and anti-rotation. Use a hex spacer when panels require frequent assembly and disassembly.

Round Spacers

Round spacers are smooth and compact. They are cheaper. Works well where a flat wrench is not needed.

Hollow / Unthreaded Spacers (Spacer Sleeves)

Hollow spacers have a hole through the center so a bolt can pass. They do not have any thread. They keep the bolt straight and spaced.

Spacer Stud / Spacer Bead

Spacer studs are short standoff with a thread. Spacer beads are tiny rings used to set precise spacing. Both are great for tight spots.

Threaded vs. Unthreaded

Threaded spacer fits directly into application, no nut is needed. They are good when you want a fixed standoff.

Unthreaded spacers need a separate nut to hold them. Use when the bolt passes all the way through.

Technical Specifications

Typical Values / Notes Details
Material6061, 6063 standard; 7075 on request
FinishClear anodize, black anodize, hard anodize, raw, bead blast, powder coat
Outer Diameter (OD)Metric: M2 to M12 common; Imperial: 1/8" to 1/2" common
Inner Diameter (ID)Match bolt/shank clearance; typical clearance +0.2 mm for metric screws
LengthStandard lengths 3 mm to 50 mm; custom lengths on request
Wall ThicknessVaries by size; heavy wall for structural use, thin wall for light stacks
Thread SizeM2, M2.5, M3, M4, M5, M6, M8 etc, UNC/UNF on request
Tolerance (standard)±0.1 mm typical; tighter tolerances available with inspection notes
Max Recommended TorqueFollow screw and material torque charts; state torque on PO for critical fits
WeightVery light; include per-piece weight in downloadable spec for large orders
PackagingBag, carton, pallet, special packaging on request
Typical Lead TimeCustom runs: 1-4 weeks depending on finish and quantity
Minimum Order Quantity (MOQ)Free samples available, bulk quantities special price

Applications & Use Cases

Electronics and PCB assemblies

Aluminum hex spacer and hollow spacer is used in circuit boards. They ensure the boards do not touch to metal surfaces. And create space for air to move, which helps cool the electronics.

Enclosures and panels

Round Spacers fix panels inside control boxes. They stop flex and keep doors aligned.

Machinery and fixtures

Spacers set distance between plates and brackets. They help in alignment during machining and welding.

Automotive and aerospace

Aluminum spacer is light weight. And in aerospace weight is major factor.

Comparison & Decision Table

When choosing between Aluminum Hex Spacers, Round Spacers, and Hollow Spacers, buyers often compare cost, machining, ease of handling, and strength.

Type of Spacer Cost (General) Machining & Fit Ease of Handling Strength & Stability
Hex Spacers Medium Easy to machine Better grip, no slip High stability
Round Spacers Low to Medium Simple to cut/fit Smooth, less grip Moderate strength
Hollow Spacers Low (material saving) Machining depends on wall thickness Lightweight, easy to place Lower strength, good for light loads

FAQs

Q1. Can Aluminum Spacers be customized in size and finish?

Yes. We can manufacture spacer according your product drawing or samples. Custom finish as per customer requirements.

Q2. Are unthreaded spacers and spacer sleeves the same?

Both are similar, but spacer sleeves are usually longer and designed for shaft and rod support.

Q3. Do Aluminum Spacers resist corrosion?

Yes, aluminum has natural oxide protection, and anodizing improves corrosion resistance.

Q4. Where are Aluminum Hex Spacers and Spacer Studs used most?

They are common in electronics, machinery, and structural assemblies where precise spacing and stability are required.

Q5. Can I buy small quantities, or only bulk supply?

We can supply small batch, as well high volume bulk quantity. Support both.

Q6. Are Aluminum Spacers stronger than plastic or nylon spacers?

Yes, aluminum spacers handle more load and heat compared to plastic or nylon alternatives.

Final Words

Aluminum spacer look simple but they decide how strong and accurate your assembly will be. From hex spacers in electronics to hollow spacers in lightweight builds. The choice affects cost, machining time and long term stability.

If you are looking for reliable manufacturer and supplier, we can help. Share your requirements.


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