Looking for the best coarse thread bolts for your projects? We’ve tested and reviewed the top 10 options to help you find the perfect fit for your needs.
Coarse thread bolts are essential for many projects. They offer strength and durability in various applications. Whether you’re a professional or a DIY enthusiast, finding the right bolts is key.
These bolts come in different grades and sizes. They are perfect for automotive, construction, and machinery work. Choosing the best ones can make your job easier and more efficient.
We’ve tested and reviewed top coarse thread bolts for you. Our guide will help you find the perfect fit. Let’s dive in and discover the best options together!
List of Top 10 Coarse Thread Bolts
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M&M Fasteners 2,510 Piece Grade 8 Coarse Thread Nut Bolt Hex Bolt & Washer Assortment Kit (Fasteners Only) |
This M&M Fasteners kit is perfect for anyone who needs a reliable, organized assortment of high-quality bolts, nuts, and washers. Whether you’re a DIY enthusiast, professional mechanic, or construction worker, this kit has you covered with 2,510 pieces in common sizes, all individually bagged and labeled for easy use. |
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Titan Industrial Supply 1275 Pieces, Grade 5 Bolt & Nut Drawer Assortment Kit, Hex Head Cap Screws, Hex Nuts, SAE Flat & Lock Washers, 1/4, 5/16, 3/8, 1/2 inch-Black Metal Drawer |
This Titan Industrial Supply kit is perfect for anyone who needs a reliable hardware assortment. It’s ideal for DIY enthusiasts, professionals, and handy homeowners working on industrial, automotive, or construction projects. |
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2,510 Piece Grade 8 Coarse Thread Nut Bolt Washer Assortment Kit, Hex Bolts, Hex Nuts, Lock and Flat Washers with Metal Bolt Bin Kit |
This kit is perfect for builders, mechanics, and anyone who wants a strong set of grade 8 parts ready to go. It also fits people who like their gear organized and easy to grab fast. |
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Titan Industrial Supply-1275 Piece Metric 8.8 Coarse Thread Metal Drawer Assortment |
This Titan Industrial Supply set is perfect for anyone needing a wide range of metric fasteners. Whether you’re a DIY enthusiast or a professional, this 1,275-piece assortment has you covered with high-quality screws, nuts, and washers. |
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1250 Piece Grade 8 Coarse Thread Hex Head Nut, Bolt, & Washer Drawer Assortment |
This 1250-piece assortment is perfect for anyone who needs strong, durable fasteners for heavy-duty projects. Whether you’re a DIY enthusiast, a professional mechanic, or a handy homeowner, this organized metal drawer keeps everything ready to use. |
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VIGRUE 521PCS M6 M8 M10 Flange Bolts Assortment Kit Metric Class 8.8 Serrated Hex Cap Flange Hex Bolts Flange Nuts Assorted Set, Coarse Full and Half Threads |
This 521-piece flange bolt kit is perfect for DIY enthusiasts, mechanics, and professionals who need a reliable and organized assortment of bolts, nuts, and washers. It’s ideal for projects requiring strong, corrosion-resistant fasteners in various sizes. |
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Glarks 112Pcs 3/8″-16 Grade 8 Coarse Thread Hex Bolt, Nut, Screw, Washer Assortment Kit, 4 Sizes (3/4″, 1″, 1-1/4″, 1-1/2″) |
Glarks 112Pcs is perfect for DIYers and handy folks who need a quick, reliable fix. Whether you’re tightening furniture, fixing a bike, or building a garden shed, this kit gives you the right size and strong, rust‑resistant hardware every time. |
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Titan Industrial Supply-1275 Piece Grade 5 Coarse Thread Metal Drawer Assortment |
This Titan Industrial Supply set is perfect for anyone who needs a wide range of fasteners. Whether you’re a DIY enthusiast or a professional, this 1,275-piece assortment has you covered with high-quality, Grade 5 coarse thread hardware. |
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3/8″-16 x 1-1/2″ Grade 8 Bolts (10-Pack) – Heavy-Duty Hex Bolts Includes Flat Washers & Nylon Lock Nuts – High-Strength SAE J429 Anti-Vibration 1.50″ Coarse Thread Bolts |
This bolt kit is perfect for pros and serious DIYers who need strong, vibration-resistant fastening. Whether you’re fixing equipment, building fixtures, or assembling heavy parts, this kit has everything you need for reliable, industrial-grade results. |
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3/8-16 x 1-1/4″ (100 Pack) Grade 5 Coarse Hex Cap Screw, Coarse Thread, Zinc by Makers Bolt |
This pack is great for builders, makers, and anyone who needs strong, clean, easy‑fit hex cap screws for daily work. It suits people who want reliable parts that hold tight every time. |
Detailed Reviews
Top 10 Coarse Thread Bolts are hand‑picked from expert reviews and real user ratings to give you the best blend of strength and value.
Each bolt’s performance and price are clearly explained so you can trust this guide to make the right choice.
Explore the list to find the perfect fastener that meets your needs and keeps your projects running smoothly.
1. M&M Fasteners 2,510 Piece Grade 8 Coarse Thread Nut Bolt Hex Bolt & Washer Assortment Kit (Fasteners Only)
M&M Fasteners offers a 2,510-piece kit with grade 8 coarse thread hex bolts, nuts, and washers. This assortment includes five common sizes: 1/4, 5/16, 3/8, 7/16, and 1/2. Each part is individually bagged and labeled for easy organization.
With over 25 years of experience, M&M Fasteners ensures top-quality products and excellent customer service. This kit is perfect for professionals and DIY enthusiasts alike.
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Perfect For:
This M&M Fasteners kit is perfect for anyone who needs a reliable, organized assortment of high-quality bolts, nuts, and washers. Whether you’re a DIY enthusiast, professional mechanic, or construction worker, this kit has you covered with 2,510 pieces in common sizes, all individually bagged and labeled for easy use.
Ready to Purchase?
2. Titan Industrial Supply 1275 Pieces, Grade 5 Bolt & Nut Drawer Assortment Kit, Hex Head Cap Screws, Hex Nuts, SAE Flat & Lock Washers, 1/4, 5/16, 3/8, 1/2 inch-Black Metal Drawer
The Titan Industrial Supply 1275‑piece kit gives you a full set of strong, Grade 5 bolts, nuts, and washers. Each piece is made to last and easy to use. The black metal drawer keeps everything neat and close at hand.
You get hex head cap screws, hex nuts, and SAE flat and lock washers in key sizes. The zinc‑plated steel parts hold up well and resist wear. This kit works for many industrial, auto, and build jobs.
It is simple to store. It is simple to move. It is simple to use.
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Perfect For:
This Titan Industrial Supply kit is perfect for anyone who needs a reliable hardware assortment. It’s ideal for DIY enthusiasts, professionals, and handy homeowners working on industrial, automotive, or construction projects.
Ready to Purchase?
3. 2,510 Piece Grade 8 Coarse Thread Nut Bolt Washer Assortment Kit, Hex Bolts, Hex Nuts, Lock and Flat Washers with Metal Bolt Bin Kit
The 2,510 Piece Grade 8 Coarse Thread Nut Bolt Washer Assortment Kit gives you everything you need. It comes in a handy 36‑compartment bolt bin with labels.
The kit has hex bolts, nuts, lock washers and flat washers. Sizes range from 1/4 to 1/2 inches. All pieces are grade 8 for strength.
The bin measures 23 ¾ x 4 ¾ x 23 ¾ inches. It keeps parts organized and easy to find. You can finish jobs fast and right.
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Perfect For:
This kit is perfect for builders, mechanics, and anyone who wants a strong set of grade 8 parts ready to go. It also fits people who like their gear organized and easy to grab fast.
Ready to Purchase?
4. Titan Industrial Supply-1275 Piece Metric 8.8 Coarse Thread Metal Drawer Assortment
Titan Industrial Supply offers a 1275-piece metal drawer assortment. It is durable and ready for any job. You get every size you need.
The set includes hex cap screws, hex nuts, flat washers, and lock washers. All are metric 8.8 coarse thread.
The drawer is a Durham heavy-duty metal drawer. It holds everything securely and easily.
The fasteners come with a zinc finish for extra protection. They meet ISO-9001:2015 and ISO/IEC 17021:2017 standards.
The company backs its work with a 25-year guarantee. If you’re not happy, you get a 100% money-back guarantee, no questions asked.
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Perfect For:
This Titan Industrial Supply set is perfect for anyone needing a wide range of metric fasteners. Whether you’re a DIY enthusiast or a professional, this 1,275-piece assortment has you covered with high-quality screws, nuts, and washers.
Ready to Purchase?
5. 1250 Piece Grade 8 Coarse Thread Hex Head Nut, Bolt, & Washer Drawer Assortment
This 1250-piece set includes everything you need for your projects. It has hex head cap screws, nuts, and washers.
All pieces are Grade 8 Coarse with a yellow zinc finish. They come in a metal drawer with a handle and latch.
The drawer has a plastic divider for easy storage. It’s durable and portable for any job.
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Perfect For:
This 1250-piece assortment is perfect for anyone who needs strong, durable fasteners for heavy-duty projects. Whether you’re a DIY enthusiast, a professional mechanic, or a handy homeowner, this organized metal drawer keeps everything ready to use.
Ready to Purchase?
6. VIGRUE 521PCS M6 M8 M10 Flange Bolts Assortment Kit Metric Class 8.8 Serrated Hex Cap Flange Hex Bolts Flange Nuts Assorted Set, Coarse Full and Half Threads
The VIGRUE 521PCS Flange Bolts Assortment Kit is a handy set for any project. It includes 169 bolts, 176 nuts, and 176 washers in 16 different sizes, making it a complete solution for fastening needs.
This kit features high-quality alloy steel with corrosion resistance and high hardness. The flange design distributes load evenly, and the serrated flange ensures a firm grip. Easy to use and store.
| Pros | Cons |
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Perfect For:
This 521-piece flange bolt kit is perfect for DIY enthusiasts, mechanics, and professionals who need a reliable and organized assortment of bolts, nuts, and washers. It’s ideal for projects requiring strong, corrosion-resistant fasteners in various sizes.
Ready to Purchase?
7. Glarks 112Pcs 3/8″-16 Grade 8 Coarse Thread Hex Bolt, Nut, Screw, Washer Assortment Kit, 4 Sizes (3/4″, 1″, 1-1/4″, 1-1/2″)
The Glarks 112Pcs Hex Bolt, Nut, and Washer Kit is a must-have for any project. It includes 4 sizes of 3/8″-16 Grade 8 coarse thread bolts, nuts, and washers. Everything comes sorted in a plastic box for easy use.
Durable zinc-plated steel resists rust and wear. Flat and lock washers prevent loosening and damage. Hex head bolts ensure a secure grip without slipping.
This kit works for furniture, machinery, and construction. It’s perfect for pros and DIYers alike. Get it for reliable, long-lasting results.
| Pros | Cons |
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Perfect For:
Glarks 112Pcs is perfect for DIYers and handy folks who need a quick, reliable fix. Whether you’re tightening furniture, fixing a bike, or building a garden shed, this kit gives you the right size and strong, rust‑resistant hardware every time.
Ready to Purchase?
8. Titan Industrial Supply-1275 Piece Grade 5 Coarse Thread Metal Drawer Assortment
The Titan Industrial Supply set has 1,275 pieces of Grade 5 fasteners. It includes hex cap screws, nuts, and washers. All pieces come in a heavy-duty metal drawer.
This set has four common sizes: 1/4″, 5/16″, 3/8″, and 1/2″. Each piece has a zinc finish for long-lasting use.
We stand behind our product with a 100% money-back guarantee. Our 25 years in business show we deliver quality.
| Pros | Cons |
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Perfect For:
This Titan Industrial Supply set is perfect for anyone who needs a wide range of fasteners. Whether you’re a DIY enthusiast or a professional, this 1,275-piece assortment has you covered with high-quality, Grade 5 coarse thread hardware.
Ready to Purchase?
9. 3/8″-16 x 1-1/2″ Grade 8 Bolts (10-Pack) – Heavy-Duty Hex Bolts Includes Flat Washers & Nylon Lock Nuts – High-Strength SAE J429 Anti-Vibration 1.50″ Coarse Thread Bolts
Get heavy-duty strength with this 10-pack of Grade 8 bolts. Each pack includes everything you need: bolts, washers, and lock nuts.
High-quality materials ensure long-lasting performance. Perfect for automotive, machinery, and DIY projects.
| Pros | Cons |
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Perfect For:
This bolt kit is perfect for pros and serious DIYers who need strong, vibration-resistant fastening. Whether you’re fixing equipment, building fixtures, or assembling heavy parts, this kit has everything you need for reliable, industrial-grade results.
Ready to Purchase?
10. 3/8-16 x 1-1/4″ (100 Pack) Grade 5 Coarse Hex Cap Screw, Coarse Thread, Zinc by Makers Bolt
Makers Bolt offers a 100-pack of 3/8-16 x 1-1/4″ Grade 5 hex cap screws. These screws are perfect for moderate strength applications.
Coarse threads make them easy to use. They meet ASME B18.2.1 standards. Each screw fits a 9/16″ wrench.
Made from SAE J429 material, these screws are reliable and durable. Each bag contains 100 screws, ready for your projects.
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Perfect For:
This pack is great for builders, makers, and anyone who needs strong, clean, easy‑fit hex cap screws for daily work. It suits people who want reliable parts that hold tight every time.
Ready to Purchase?
Buying Guide
Coarse thread bolts are essential for many projects. They offer strength and durability in various applications.
Choosing the right coarse thread bolts can make your job easier and more efficient. Our guide will help you find the perfect fit for your needs.
Here are the key factors to consider when buying:
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Grade: The grade of the bolt determines its strength and durability. Grade 8 bolts are stronger than Grade 5, making them ideal for heavy-duty applications.
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Size: Bolts come in different sizes, so choose the right size for your project. Common sizes include 1/4, 5/16, 3/8, 7/16, and 1/2 inches.
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Material: Look for bolts made from high-quality materials like alloy steel or zinc-plated steel for corrosion resistance and long-lasting performance.
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Thread type: Ensure the bolts have coarse threads for easy installation and secure fastening.
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Included components: Some kits include nuts, washers, and lock nuts, making them a complete solution for your fastening needs.
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Storage and organization: Consider kits with metal drawers or plastic boxes for easy storage and organization.
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Warranty and guarantee: Look for products with warranties or money-back guarantees for added peace of mind.
With these factors in mind, you can confidently choose the best coarse thread bolts for your project. Happy shopping!