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MakersBolt

MakersBolt specializes in high-quality industrial washers, including flat and fender types, engineered for durability and compliance with ASME B18.21.1 standards.

11 products Updated March 4, 2026

MakersBolt Products (11)

1
Prime

MakersBolt 1/2" Split Lock Washers (50 Pack) Zinc Plated Steel ASME B18.21.1 - Anti-Loosening Fasteners

MakersBolt
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Exceptional vibration resistance keeps fasteners tight over time
  • Corrosion-resistant zinc plating extends usability in damp environments
  • Meets strict ASME standards for consistent performance
  • Generous 50-pack at precise dimensions for hassle-free installation
  • High customer ratings reflect superior build quality

Cons

  • Sized specifically for 1/2-inch bolts, not interchangeable with other sizes
  • Low carbon steel best for general use, not extreme high-strength applications
  • Zinc plating offers moderate rather than heavy-duty corrosion protection
2
Prime

MakersBolt 3/8-16 Grade 8 Nylon Insert Locknuts (100 Pack) - High-Strength Coarse Thread Nylock Nuts for Secure Fastening

MakersBolt
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Exceptional high-strength Grade 8 construction
  • Effective corrosion resistance from zinc plating
  • Meets strict ASME B18.16.6 standards
  • Generous 100-pack for bulk value
  • Easy to install with common wrench size

Cons

  • Nylon insert limits use in high-temperature environments above 250°F
  • Coarse threading less ideal for ultra-precise alignments
  • Moderate zinc plating may need extra protection in severe marine conditions
3
Prime

MakersBolt 3/8" Grade 8 SAE Flat Washers (100 Pack) - Thru-Hardened Yellow Zinc for High-Strength Bolting

MakersBolt
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Exceptional high-strength thru-hardened construction
  • Moderate corrosion resistance from yellow zinc finish
  • ASME-compliant for trusted standards
  • Generous 100-pack quantity
  • Precise sizing for 3/8" fasteners

Cons

  • Yellow zinc offers only moderate corrosion protection, not ideal for marine use
  • Thickness range may require sorting for ultra-precise applications
  • Not stainless steel for extreme environments
4
Prime

MakersBolt 1/2" x 8" Galvanized Carriage Bolt Kit (25 Pack) w/ USS Washers & Hex Nuts - Grade 307A Hot Dip for Decks & Outdoor Builds

MakersBolt
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Exceptional corrosion resistance via hot dip galvanization
  • All-in-one kit ensures perfect fit and fast assembly
  • Versatile for demanding exterior woodworking applications
  • Durable carbon steel construction exceeds industry specs
  • Flat head design provides flush, attractive installations

Cons

  • Bulk 25-pack may exceed needs for small projects
  • Requires 3/4" wrench for nut installation
  • Carbon steel base not as premium as stainless alternatives
5
Prime

MakersBolt 3/8" Grade 8 Split Lock Washers (100 Pack) - Thru-Hardened Steel, Yellow Zinc Plated, ASME B18.21.1 Compliant

MakersBolt
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Ultra-high strength from Grade 8 thru-hardened construction
  • Effective split design grips tightly to prevent rotation
  • Yellow zinc finish resists rust in typical environments
  • Accurate dimensions for seamless 3/8-inch fastener compatibility
  • Compliant with ASME standards for professional use

Cons

  • Overly robust for lightweight or non-critical fastening needs
  • Zinc plating suited only for moderate corrosion exposure
  • Split edges may mark softer surfaces under high torque
6
Prime

MakersBolt 1/2" Split Lock Washers (50 Pack) Hot-Dipped Galvanized Steel, ASME B18.21.1 - Vibration-Resistant Bolt Security

MakersBolt
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Exceptional rust protection extends fastener life outdoors
  • Split design applies consistent tension to resist self-loosening
  • Meets strict ASME standards for dependable performance
  • Generous 50-pack suits DIY and pro jobs efficiently
  • Accurate inside/outside diameters ensure snug bolt fit

Cons

  • Low carbon steel best for general use, not extreme high-strength needs
  • Specific 1/2-inch size requires matching bolts
  • Galvanized finish may not suit highly acidic environments
7
Prime

MakersBolt Grade 8 Hex Nuts 1/4-20 UNC (100 Pack) Yellow Zinc Plated - High-Strength Coarse Thread Fasteners

MakersBolt
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Exceptional Grade 8 strength for demanding applications
  • Effective corrosion resistance from yellow zinc finish
  • Generous 100-pack quantity for value and convenience
  • Standards-compliant for reliable performance
  • Compact sizing fits standard tools seamlessly

Cons

  • Coarse threads limit use in precision fine-thread needs
  • Zinc plating may degrade faster in highly acidic or marine settings
  • Requires specific 7/16-inch wrench, not universal for all kits
8
Prime

MakersBolt 3/16" x 1" Fender Washers (100 Pack) Zinc Plated Steel ASME B18.21.1 Industrial Grade

MakersBolt
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Corrosion-resistant zinc finish extends washer lifespan
  • Meets strict ASME B18.21.1 standards for quality assurance
  • Generous 100-pack covers multiple jobs efficiently
  • Wide 1" outer diameter enhances load distribution
  • Compatible with common #10 screws and 3/16" bolts

Cons

  • Sized specifically for 3/16" bolts, limiting versatility
  • Steel material adds slight weight compared to plastic options
  • Bulk 100-pack may exceed needs for small single-use tasks
9
Prime

MakersBolt 1/4" x 1" Zinc Plated Fender Washers (100 Pack) - ASME B18.21.1 Steel Flat Washers for Industrial Strength

MakersBolt
9.9
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Corrosion-resistant zinc plating extends lifespan
  • Meets strict ASME standards for industrial applications
  • Generous 100-pack offers great value for projects
  • Precise 1" outer diameter for optimal coverage
  • Versatile for automotive, construction, and DIY fastening

Cons

  • 100-pack may exceed needs for small single-use projects
  • Zinc plating less ideal for highly acidic or marine environments
  • Larger size not suited for ultra-light or precision micro-fastening
10
Prime

MakersBolt 1/2" USS Thick Flat Washers (25 Pack) - 1/2 x 1-3/8 Zinc Plated Steel, ASME B18.21.1 Industrial Grade

MakersBolt
9.8
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Superior thickness for enhanced durability in demanding tasks
  • Corrosion-resistant zinc plating extends service life
  • Meets strict ASME standards for professional reliability
  • Cost-effective bulk packaging for contractors and DIYers
  • Low carbon steel offers strength at an accessible grade

Cons

  • Thicker profile may not suit applications needing ultra-thin washers
  • Zinc plating provides moderate rather than heavy-duty corrosion protection
  • Steel construction vulnerable to rust in extreme marine environments
11
Pros & Cons

Pros

  • Exceptional rust protection from hot dip galvanization
  • Thicker USS design for enhanced strength and stability
  • Meets strict ASME B18.21.1 standards
  • Generous 100-pack for bulk value
  • Accurate sizing for easy bolt compatibility

Cons

  • Thicker profile may not fit applications needing slim washers
  • Galvanized finish can leave zinc residue during initial handling
  • Steel weight adds bulk to shipping for smaller orders

MakersBolt Brand Guide

MakersBolt stands out as a reliable provider of industrial-grade fasteners, particularly excelling in washers designed for heavy-duty applications. From thru-hardened flat washers to robust fender washers, their products deliver the strength and precision needed for construction, automotive, and machinery assembly.

Discover the MakersBolt Difference

MakersBolt focuses on crafting washers that meet rigorous industry standards like ASME B18.21.1, ensuring every piece offers superior load distribution and corrosion resistance. Their lineup includes versatile options such as Grade 8 SAE flat washers in sizes like 3/8", ideal for high-stress bolting, and zinc-plated fender washers in 3/16" x 1" and 1/4" x 1" dimensions, perfect for oversized holes in metal fabrication.

What sets MakersBolt apart is their commitment to quality materials and finishes, including yellow zinc plating for enhanced durability and hot-dip galvanization for outdoor exposure. These features make their washers a go-to choice for professionals seeking dependable performance without compromise. Whether you're reinforcing structural joints or securing equipment, MakersBolt products provide the reliability that keeps projects on track.

Superior Quality and Build Standards

Each MakersBolt washer undergoes thru-hardening processes where applicable, boosting tensile strength for critical fastening tasks. Zinc-plated steel variants offer excellent protection against rust, while hot-dip galvanized options excel in harsh environments like marine or agricultural settings. For instance, their 1/2" USS thick flat washers, available in both zinc-plated and galvanized steel, measure 1/2" x 1-3/8" to provide ample bearing surface under heavy loads.

Compliance with ASME B18.21.1 ensures these washers perform consistently in industrial and commercial scenarios. MakersBolt's reputation stems from this focus on precision engineering, making them a favorite among contractors, machinists, and DIY enthusiasts who demand parts that last. Explore a wide selection in our Washers category to see how they fit into broader fastening solutions.

Who Benefits Most from MakersBolt Washers?

MakersBolt washers are tailored for users in demanding fields. Automotive repair shops appreciate the fender washers for their ability to span larger holes without deforming. In construction, thick USS flat washers distribute pressure evenly on wood or metal frames, preventing pull-through.

  • Professionals: Mechanics, builders, and fabricators rely on Grade 8 strength for safety-critical assemblies.
  • Industrial Users: Factories and warehouses use them for machinery maintenance due to their commercial-grade toughness.
  • DIY Enthusiasts: Home workshops benefit from the precise sizing and corrosion resistance for garage projects.

These products shine in applications requiring high torque or vibration resistance. When selecting fasteners, consider linking to related options in our comprehensive Washers collection for complementary items like bolts and nuts.

Key Product Highlights

MakersBolt's portfolio covers essential washer types:

  • 3/8" Grade 8 SAE Flat Washers: Thru-hardened with yellow zinc for maximum strength.
  • 3/16" x 1" and 1/4" x 1" Fender Washers: Zinc-plated steel for broad applications.
  • 1/2" USS Thick Flat Washers: Zinc-plated or hot-dip galvanized for versatile heavy-duty use.
These selections cater to a range of sizes and finishes, ensuring you find the right fit for any project. Dive deeper into flat and fender styles within the Washers section.

Frequently Asked Questions

What standards do MakersBolt washers meet?

MakersBolt washers comply with ASME B18.21.1, guaranteeing industrial and commercial grade performance for reliable fastening.

What finishes are available from MakersBolt?

Options include yellow zinc plating, standard zinc plating, and hot-dip galvanization, providing corrosion resistance suited to various environments.

Are MakersBolt washers suitable for outdoor use?

Yes, especially galvanized models like the 1/2" USS thick flat washers, which offer excellent protection against weather and moisture.

What sizes does MakersBolt offer?

Popular sizes include 3/16", 1/4", 3/8", and 1/2", with specific dimensions for fender and flat styles to match common bolt sizes.

Who should choose MakersBolt products?

They are ideal for professionals in construction, automotive, and manufacturing, as well as serious DIYers needing durable, standards-compliant washers. Check our Washers page for more options.