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.
They use spacers in production runs to keep parts at exact distance. They save assembly time and ensure repeatable fit.
They stock common sizes and finishes for fast delivery.
They design spacers into final products for durability and safety. Spacers control clearance, prevent shorts, and reduce vibration transfer.
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.
Aluminum have many different grades. Each grade have different identity. We help clients pick the right one based on strength, corrosion, machinability, and price.
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.
Make part dark in black color and hides fingerprints and looks clean. It is best when part is visible outside.
This makes a thicker and tougher surface. It will protect from damage, and it's good when parts are used a lot.
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.
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.
This adds color and thick protection. It’s best when you care about looks and extra protection from rust.
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 are smooth and compact. They are cheaper. Works well where a flat wrench is not needed.
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 studs are short standoff with a thread. Spacer beads are tiny rings used to set precise spacing. Both are great for tight spots.
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.
Typical Values / Notes | Details |
---|---|
Material | 6061, 6063 standard; 7075 on request |
Finish | Clear 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 |
Length | Standard lengths 3 mm to 50 mm; custom lengths on request |
Wall Thickness | Varies by size; heavy wall for structural use, thin wall for light stacks |
Thread Size | M2, 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 Torque | Follow screw and material torque charts; state torque on PO for critical fits |
Weight | Very light; include per-piece weight in downloadable spec for large orders |
Packaging | Bag, carton, pallet, special packaging on request |
Typical Lead Time | Custom runs: 1-4 weeks depending on finish and quantity |
Minimum Order Quantity (MOQ) | Free samples available, bulk quantities special price |
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.
Round Spacers fix panels inside control boxes. They stop flex and keep doors aligned.
Spacers set distance between plates and brackets. They help in alignment during machining and welding.
Aluminum spacer is light weight. And in aerospace weight is major factor.
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 |
Yes. We can manufacture spacer according your product drawing or samples. Custom finish as per customer requirements.
Both are similar, but spacer sleeves are usually longer and designed for shaft and rod support.
Yes, aluminum has natural oxide protection, and anodizing improves corrosion resistance.
They are common in electronics, machinery, and structural assemblies where precise spacing and stability are required.
We can supply small batch, as well high volume bulk quantity. Support both.
Yes, aluminum spacers handle more load and heat compared to plastic or nylon alternatives.
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.
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