Fiber print washers are a small part that can make a big difference when you need electrical isolation, light sealing, or a non-metal spacer around a fastener.
If you are comparing assortment kits, sizes, and thicknesses, this roundup helps you narrow down the best options for plumbing, automotive, electronics, and general repair work.
Best 10 Fiber Print Washers Picks for 2026
Bulk Assortment
600-Piece Red Insulation Washer Kit
- 600 washers in 12 sizes
- Insulation-focused red fiber material
- Plastic box keeps sizes organized
Best For: Frequent repair work and users who want a broad washer assortment
Exact-Size Pack
3/8 x 7/8 Fibre Washers, 30 Pack
- Sized at 3/8 x 7/8 inches
- 30-piece pack for specific replacements
- Flat fibre washer design
Best For: Targeted replacements where you already know the exact washer size
Metric Repair Assortment
150-Piece Red Fiber Washer Kit
- 150 washers in 14 metric sizes
- Organizer case for easy storage
- Suited to plumbing and automotive repairs
Best For: Compact multi-size repair use across plumbing, auto, and general maintenance
Electronics Choice
200-Piece PCB Insulating Fiber Washers
- Made for motherboard and PCB insulation
- 200 small red washers
- Can be used as spacers or gaskets
Best For: PC builders and electronics repairs needing insulation around screws
Assorted Metric Kit
280Pcs Red Steel Paper Fiber Washer Assortment
- 280-piece kit with M2 to M8 sizes
- Paper fiber material adds insulation and resistance
- Includes a sturdy transparent storage case
Best For: small metric fastening and electrical insulation jobs
Large M14 Washer
100Pcs M14 Red Insulating Fiber Washers
- Single-size M14 pack with 28mm OD
- 1.5mm thickness supports sealing and insulation
- 100-count pack for repeated electrical use
Best For: larger M14 sealing and insulation applications
Large Organized Assortment
600Pcs 12-Size Insulated Fiber Washer Kit
- 600 pieces across 12 sizes
- Storage box with separated compartments
- Red steel paper build for insulation and durability
Best For: organized mixed-size maintenance and electrical connections
Insulated 6mm Pick
uxcell 220 Pcs M6 Fiber Flat Washers
- 220-piece M6 pack
- Insulated red steel paper material
- 0.5mm flat washer profile
Best For: M6 fastening jobs needing insulation and bulk quantity
Assorted Box Pick
150Pcs Fiber Washer Insulation Assortment Kit
- 14 sizes in one kit
- Plastic box for storage and carry
- Good insulation for general repair work
Best For: Mixed-size projects and organized storage
Thicker M8 Pick
uxcell 220 Pcs M8 Fiber Flat Washers
- 220-piece M8 pack
- 1mm thick insulating washer
- Anti-corrosion red steel paper build
Best For: M8 jobs needing a thicker insulating washer
Bulk Assortment – 600-Piece Red Insulation Washer Kit
If you need fiber print washers for mixed repair work, this 600-piece assortment is built for flexibility and organization. It includes 12 sizes of red fiber washers with insulation-focused performance, making it a practical pick for electrical, mechanical, and general DIY jobs where non-conductive spacing matters.
Best For: DIY users, technicians, and pros who want a large organized assortment for frequent repair work.
Pros:
- 600 pieces across 12 sizes for broad job coverage
- Designed for insulation and helping prevent electrical conductivity
- Comes in a compartmentalized plastic box for easier storage
- Good fit for projects where quick access to multiple washer sizes matters
Cons:
- Assortment format may include sizes you do not need
- Not the smallest pack if you only need one specific size
Overall, this set makes sense if you want a long-lasting stock of fiber print washers in a tidy case rather than buying individual sizes one at a time.
Exact-Size Pack – 3/8 x 7/8 Fibre Washers, 30 Pack
For buyers looking for fiber print washers in a specific size, this 30-pack offers a simple, no-frills option. These fibre washers are sized at 3/8 inch by 7/8 inch with 1/16-inch thickness, which makes them useful when you need a matching flat washer size instead of an assortment.
Best For: Shoppers who need a small pack of a specific 3/8-inch fibre washer size.
Pros:
- Clear size specs for targeted replacement work
- 30-piece pack is practical for smaller jobs
- Flat washer style suits simple fastening applications
Cons:
- Only one size included, so it is not versatile
- Smaller pack than bulk assortment options
This is the most straightforward choice if you already know the exact washer dimensions you need and want to avoid paying for a large mixed set.
Metric Repair Assortment – 150-Piece Red Fiber Washer Kit
If your priority is having fiber print washers ready for plumbing, automotive, and general repair tasks, this 150-piece assortment covers a wide range of metric sizes. The red fiber construction is described as insulation-friendly, corrosion resistant, heat resistant, and wear resistant, making it a practical all-around kit for shop or home use.
Best For: Users who want a compact metric assortment for plumbing, auto work, and general repairs.
Pros:
- 150 pieces in 14 sizes for flexible repair use
- Clear organizer case makes storage and transport easier
- Built for insulation and long-term wear resistance
- Useful for plumbing, automotive, electrical, and machinery applications
Cons:
- Metric sizing may not suit every bolt or screw project
- Assortment packing means some sizes will be used faster than others
As a mixed kit, it balances size coverage and portability well, especially if you want fiber print washers on hand for several repair categories without buying separate packs.
Electronics Choice – 200-Piece PCB Insulating Fiber Washers
These fiber print washers are aimed at electronics work, especially motherboard and PCB screw insulation. With 200 red washers in a small pack, they make sense when you need insulating spacers or gaskets for computer assembly or board-level repairs rather than a broad hardware assortment.
Best For: Electronics hobbyists and PC builders needing screw insulation for motherboard or PCB work.
Pros:
- Designed specifically for motherboard and PCB insulation
- 200-piece pack gives plenty of small washers for electronics use
- Works as a screw spacer, gasket, or insulation washer
- Compact size is convenient for bench or repair kit storage
Cons:
- Not intended as a general-purpose plumbing or automotive assortment
- Size is listed as small, so it is less suited to larger fasteners
This is the most specialized option in the group, and that focus is useful if your main concern is safe separation and insulation in computer hardware projects.
Assorted Metric Kit – 280Pcs Red Steel Paper Fiber Washer Assortment
If you need fiber print washers for small metric fasteners, this assorted kit gives you a practical mix of common sizes in one box. The red paper fiber build is meant to provide insulation, wear resistance, corrosion resistance, and heat resistance, making it a useful pick for electrical and general fastening jobs where a flat washer is needed.
Best For: Small metric repair work, electrical insulation, and keeping assorted washer sizes organized in a single case.
Pros:
- 280-piece assortment covers M2, M2.5, M3, M4, M5, M6, and M8 sizes
- Paper fiber material is described as insulating, heat resistant, and corrosion resistant
- Comes packed in a sturdy transparent plastic case for storage
- Suitable for metric bolts and flat washer applications
Cons:
- Small parts may be easy to misplace if not stored carefully
- Assortment is geared to metric sizes only
This kit is a good fit if you want a compact assortment of fiber washers for frequent small-size work. The mix of sizes and the included case make it easier to keep on hand for electrical insulation and basic fastening needs.
Large M14 Washer – 100Pcs M14 Red Insulating Fiber Washers
M14 x 28mm x 1.5mm Fiber Washers Insulating Flat Red Paper Washers Sealing Gaskets, 100pcs
Check Price On AmazonFor larger fasteners, this M14 option is a straightforward choice when you need fiber print washers that can help with insulation and sealing. The 1.5mm-thick red paper washers are described as having good softness, high elasticity, and strong mechanical and electrical strength, which makes them suitable for electrical and electronic uses where a flat insulating washer is needed.
Best For: Larger M14 fastening points, sealing around bolts, and insulation work in electrical or electronics projects.
Pros:
- Specific M14 size with 28mm outer diameter and 1.5mm thickness
- Designed for good insulation, corrosion resistance, and high mechanical/electrical strength
- Soft and elastic enough to fill small gaps for better sealing
- Pack of 100 is useful for repeated use in repair or assembly work
Cons:
- Single-size pack is less flexible than an assortment
- Only one thickness and size is included
This is the better pick if your job calls for a specific M14 insulating washer rather than a mixed kit. Its sealing-focused design and electrical-use positioning make it practical for motherboard, PCB, and similar applications.
Large Organized Assortment – 600Pcs 12-Size Insulated Fiber Washer Kit
If you want a bigger fiber print washers assortment for ongoing maintenance, this 600-piece kit stands out for both quantity and organization. It includes 12 sizes of red steel paper washers, each separated by size in the storage box, which makes it easier to find the right washer quickly during electrical connection work.
Best For: Frequent maintenance, mixed-size electrical connections, and users who want a well-organized washer assortment.
Pros:
- 600-piece assortment with 12 different sizes
- Separated compartments and an identification sticker help with quick size selection
- Red steel paper material is described as strong in insulation and mechanical strength
- Includes a storage box to reduce loss and keep parts organized
Cons:
- Assorted set may include sizes you do not need
- Best suited to users who want variety rather than one exact size
This kit makes sense when you need a broad selection of insulated washers and prefer a storage system that keeps them sorted. It is a practical option for electrical appliance connection points where insulation, fit, and easy access all matter.
Insulated 6mm Pick – uxcell 220 Pcs M6 Fiber Flat Washers
If you need fiber print washers for M6 fasteners, this uxcell pack is a practical choice for insulation and general fastening. The 6mm ID, 12mm OD, and 0.5mm thickness make these flat washers easy to use under bolt or nut heads, while the red steel paper material is built for anti-corrosion, wear resistance, and long-term indoor or outdoor use.
Best For: M6 hardware jobs that need insulation, spacing, and a large 220-piece supply.
Pros:
- 220-piece pack gives you plenty of washers for repeat repairs.
- Good insulation properties help isolate conductive materials and reduce leakage risk.
- Anti-corrosion, anti-rust, and anti-oxidation material suits indoor and outdoor use.
- Flat profile is designed to fit snugly and help prevent loosening.
Cons:
- Only one size is included, so it is not an assortment kit.
- 0.5mm thickness may be too thin for jobs needing more spacing.
Overall, this is a solid pick if you want a straightforward M6 fiber washer pack for fastening, insulation, and basic sealing tasks. It is best for users who know they need this exact size and want quantity over variety.
Assorted Box Pick – 150Pcs Fiber Washer Insulation Assortment Kit
This assortment of fiber print washers is built for users who want size flexibility in one compact kit. With 150 pieces across 14 sizes, these red steel paper flat washers are aimed at insulation and general sealing work, and the included plastic box makes them easier to store and carry.
Best For: Buyers who want a mixed-size washer kit for occasional repairs and storage convenience.
Pros:
- 14 sizes give you more flexibility for different repair tasks.
- Plastic box packaging helps keep washers organized and portable.
- Good insulation performance is useful where nonconductive washers are needed.
- 150-piece count should cover a range of small jobs.
Cons:
- Size range details are less direct than a single-size pack.
- Only 150 pieces total, so heavy-use buyers may want a larger supply.
As a mixed kit, this set makes sense when you are not sure which washer size you will need most. It trades the simplicity of one exact size for broader coverage and easier organization.
Thicker M8 Pick – uxcell 220 Pcs M8 Fiber Flat Washers
For fiber print washers in an M8 size, this uxcell pack offers a thicker 1mm option for fastening and insulation tasks. The 8mm ID and 16mm OD dimensions give it a snug flat-washer fit under bolts or nuts, while the red steel paper material is described as insulated, anti-corrosion, durable, and resistant to rust and oxidation.
Best For: M8 repairs and installations that need a thicker insulating flat washer.
Pros:
- 220-piece pack provides a strong supply for repeated use.
- 1mm thickness offers more spacer height than thinner washers.
- Good insulation helps isolate conductive materials and reduce short-circuit risk.
- Material is designed for anti-rust, anti-oxidation, and wear resistance.
Cons:
- Single-size pack only covers M8 applications.
- Not a sealing kit with multiple thickness options.
If you need a dependable M8 washer with a bit more thickness, this set is the most straightforward option here. It is a practical choice for users who value insulation, durability, and quantity in one size.
How We Picked the Best Fiber Print Washers
We focused on Fiber Print Washers that offer practical size ranges, clear material use cases, and enough quantity to support real shop or repair work. Priority went to kits with useful diameter and thickness options, plus listings that clearly serve common tasks like insulation, sealing, and spacing.
Quick Comparison
For electronics and PCB work, smaller-diameter washers are usually the best fit. For plumbing, machinery, and automotive fasteners, broader assortment kits are more flexible because they cover more screw and bolt sizes. Larger packs also tend to offer better value if you use Fiber Print Washers regularly.
Key Buying Factors for Fiber Print Washers
Size Match
Check inner diameter, outer diameter, and thickness before buying. The washer should fit the fastener cleanly without excessive slop, and it should provide enough surface area for the job.
Material and Heat Resistance
Most Fiber Print Washers are used for insulation or light sealing, so confirm the material suits the environment. If the application runs warm, make sure the washer material is rated for the expected conditions.
Quantity and Assortment
Assortment kits are best when you work across multiple projects or unknown fastener sizes. Single-size packs make more sense if you already know the exact dimensions you need.
Use Case
Different jobs call for different priorities. PCB and motherboard work favor precise fit and nonconductive spacing. Plumbing and automotive use may place more emphasis on sealing, durability, and size coverage. Machinery applications often need consistent thickness and reliable alignment.
Who Should Buy Which Fiber Print Washers?
Choose a mixed assortment if you want one kit for general repairs, prototyping, or maintenance. Pick a smaller, size-specific pack if you are replacing washers on a known fastener size or need repeatable results on a single project type.
For electronics, look for thin, insulating options. For plumbing or automotive repairs, broader kits can be more useful because they give you backup sizes when the original dimensions are hard to confirm. In short, the best Fiber Print Washers are the ones that match your fastener, environment, and job requirements without forcing extra modification.