DRAWING-BASED CUSTOM PARTS
Custom Rubber Washers
Custom rubber washers sized for fasteners, fittings and panel holes to seal, cushion and electrically isolate.
Upload Drawing Request a Quote
Made for Your Application
Rubber washers are annular die-cut parts that distribute fastener contact while accommodating surface variation. Compound choice lets the washer serve as a water seal, vibration buffer, anti-scratch layer or electrical isolation interface in one compact component.
Material advantage
A rubber washer adds elastic recovery around a fastener and can seal minor irregularities better than a metal washer alone.
Key features
- Custom ID and OD
- compound-specific resistance
- bolt-hole sealing
- colour coding
- loose or kit packaging.
Custom Specifications
| Thickness range | 0.3-10 mm |
|---|---|
| Typical thickness | 1-2 mm |
| Size range | 1 mm ID micro washers to 300 mm OD flat rings |
| Temperature range | -40 to 200 C; compound dependent |
| Hardness range | Shore A 30-90 |
| Tolerance | Typically +/-0.1 mm ID/OD for standard die-cut sizes; drawing and material dependent |
PRODUCT EXAMPLES
Custom Part Gallery
Manufacturing & Finish Options
Production process
High-speed rotary die cutting, flatbed punching, waterjet cutting and kit sorting
Manufacturing notes
Hole size is set to assembly clearance and desired squeeze; concentricity requirements should be stated for tight fits.
Adhesive options
Normally no adhesive; optional temporary adhesive dot for retained assembly kits.
Surface options
Smooth, talc-free, cloth-impression, colour-marked or low-friction treated surface.
Where It Fits
Best for
- Fastener seals, panel penetrations, plumbing fittings, vibration isolation, glass protection and electrical spacing.
Common industries
- Construction, plumbing, electrical equipment, automotive, machinery, solar mounting and appliances.
Consider another option when
Structural load bearing, high-pressure hydraulic sealing without a purpose-designed seal, or temperatures beyond the selected elastomer.
MATERIAL OPTIONS
Choose the Right Material Construction
PROCESS OPTIONS
Available Manufacturing Routes
Design & Engineering Notes
Design guidelines
Specify fastener diameter, clearance, clamped thickness and sealing land; avoid over-tightening thin washers.
Engineering notes
Washer performance depends on squeeze around the hole and the fastener’s load distribution; verify torque on the actual joint.
Selection Guide
Use EPDM for weather seals, NBR for many oils, silicone for temperature range and FKM for demanding heat/chemical duties after compatibility review.
Material comparison
Rubber washers seal and cushion better than metal washers; PTFE washers reduce friction and chemical attack but have less elastic recovery.
Standards & requirements
Customer drawing, material specification and application-relevant sealing or fastener requirements.
Drawing Requirements
PDF, DXF, DWG, STEP, AI, CAD screenshots and dimensioned sketches can be reviewed. Don’t have a CAD drawing? A dimensioned PDF, sketch or clear image may be sufficient for an initial review.
Frequently Asked Questions
How do I size a rubber washer for a bolt?
Provide bolt diameter, required clearance, outer support area and target compressed thickness; these define the ID, OD and thickness.
Can rubber washers stop water at a panel screw?
They can help seal around fasteners when compound, squeeze and panel geometry are suitable; test the complete joint for ingress performance.
Are rubber washers electrically insulating?
Most standard rubber compounds are insulating, but electrical requirements should be specified and verified for the assembly.
Can washers be supplied in counted kits?
Yes. We can sort, bag and label washers by size, hardness or assembly location.
DRAWING-BASED MANUFACTURING
Have a Part to Cut?
Send your drawing, dimensions, material requirements and quantity. Our team will review the project and prepare a custom quotation.