Mounting & Spacing
Stainless Steel Spacers
machine the custom per your CAD drawings or samples.
- ISO 9001 Certified
- Custom OEM Solutions
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- Technical Support
Product Range
Types of Stainless Steel Spacers
Profab manufactures precision stainless steel spacers and standoffs in metric and inch sizes, machined to your exact ID, OD, and length specifications. Standard grades include 304, 316, and 17-4PH stainless steel, with tolerances as tight as ±0.01 mm. Whether you need cylindrical, hex, stepped, or flanged designs, we support full custom production from CAD drawings or samples with fast sample turnaround.
Heim Joint Misalignment Spacers
Increase the swing angle and keep the spheres centered.
Stainless Steel Shims
Used to adjust spacing or alignment with ultra-thin precision layers.
Material Specification
Choosing the Right Grade
304 Stainless
Standard grade for indoor machinery, automation, and dry or mildly humid environments. Good resistance to cleaning chemicals. Cost-effective for high-volume orders. Not suitable for continuous salt spray or chloride-heavy process environments.
Food · Automation · Indoor
316 / 316L
Marine and food-grade standard. 2–3% molybdenum addition raises chloride pitting resistance significantly above 304. Required for outdoor, marine, offshore, and food equipment with CIP chemical cleaning. Especially 316 stainless steel has excellent resistance to corrosive saltwater effects.
Marine · Chemical · Pumps
17-4PH
Precipitation-hardened martensitic grade. ≥ 1,310 MPa tensile strength in H900 condition — significantly stronger than 316 at equivalent cross-section. Specified for ball joints in motorsport, aerospace, and high-cycle fatigue applications where load ratings are the primary constraint.
Aerospace · Motorsport · Hi-load
Custom Spacers for Your Specific Needs
If you are looking for a special spacers for your project, please send us your drawings and details now, our business and engineers will work with you right away to make your project go smoothly.
Custom Options: Material, Shell Material, Length, Screw Size, Thread Size, OD, ID, Shape/Design, Gender, Hex Size, Thickness, Thread Length, Full or Partially Thread Design, Shaft Dia., Washer Type, Finish, etc.
Applications of Stainless Steel Spacer
Stainless steel spacers are widely specified in:
- Electronics & PCB assemblies — M3/M4 spacers for board-to-board isolation and grounding
- Aerospace & defense — 17-4PH spacers for high-fatigue structural assemblies
- Marine & offshore — 316 ss spacers and standoffs for salt-spray and immersion service (ASTM B733)
- Food processing & medical — electropolished 316L spacers compliant with sanitary requirements
- Automotive suspension — M8/M10 spacers for gap compensation in drivetrain and chassis assemblies
Why Profab
Your Reliable Stainless Steel Spacers Manufacturer
01
High Precision for Perfect Fits
Our ss spacers are CNC machined to exact ID, OD, and length specs, allowing tight control in automated, rotating, or fastened systems.
02
Corrosion-Resistant for Tough Conditions
Designed for electronics, aerospace, food-grade, or outdoor systems — the stainless steel prevents rust and electrochemical reaction with other metals.
03
Flexible MOQ and Custom Tolerances
We support small-to-large production volumes with your required tolerances and stainless steel grades. Bulk packaging options available for company customers.
Technical Reference
Certifications & Videos
FAQ
Common Questions
Not seeing your question? Email us at [email protected] and we typically reply same day.
Threaded vs. Unthreaded Stainless Steel Spacer
Threaded ss spacers are generally used for fixing and load-bearing positions; unthreaded ss spacers are used for spacing or positioning purposes only.
Are your spacers suitable for high pressure or vibration environments?
Yes. Our spacers are commonly used in high-strength joint structures, and are available in 316 or 17-4PH stainless steel with precision tolerances and surface treatments to ensure impact resistance and non-loosening.
What is the difference between a stainless steel spacer and a standoff?
A stainless steel spacer is a plain, unthreaded sleeve used to create a fixed gap or separation between two components. It relies on a bolt or screw passing through its center bore to hold the assembly together. A standoff, by contrast, has internal or external threads on one or both ends, allowing it to be fastened directly without a through-bolt.
Related Products
Often Ordered Together
How to Order
From Inquiry to Delivery
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Send Specs
Series, thread size, grade, hand, safety catch, quantity. DXF or drawing for custom items.
Respond Within 24 Hours
We will work on the best solution base on your request and send you a specific quote within 24 hours.
Production
7–15 days standard. Samples before full production run on new custom parts. QC report before shipment.
Delivery
Sea, air, or express courier. Material certs and inspection report inside every box. Tracking same day.
BLOG
Spacers Knowledge Base
Spacers vs Standoffs: Stainless Steel Hardware Guide
Material grade, thread form, surface finish, and dimensional tolerance determine whether your stainless steel hardware performs reliably or becomes the failure point nobody expected. Here’s the engineering logic for choosing right.
How Standoff Spacers Are Used in Marine Equipment
Standoff spacers are widely used in marine equipment to create controlled clearances for mounting electrical enclosures, panels, and structural components.
Why Axle Spacers Matter To Wheelchairs: How to Use, Replace, and Maintain Them
The role of an axle spacer is not to support weight, but to ensure correct positioning and proper clearance.
Get in touch with
Ready to Source Stainless Parts?
If you already have the drawings, please send email to [email protected] directly for an instant quote.
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