- Extremely sturdy load-bearing fastener
- Square neck prevents the bolt from turning once installed
- Smooth round head is safe for furniture and play equipment
- See More Details
Frequently Bought Together
Price:
Product Overview
Carriage bolts have a smooth rounded head with a square neck underneath that locks into wood when tightened. Use with a pre-drilled hole and secure with a hex nut and washer to prevent spinning. They are great fasteners for decks, play equipment, docks, fencing, and furniture.
- The unique design is great for connections where the head is not accessible for tightening
- Made from zinc plated steel for durability
- The self-locking square neck and coarse threads fasten very securely
- Fully threaded
- Includes 25 pieces to complete your project
- Buy by the box and save
Info & Guides
Compare Similar Carriage Bolts
 | |  |  | |
| Brand | Everbilt | Everbilt | Everbilt | Everbilt |
| Name | 1/4 in.-20 x 5-1/2 in. Zinc Plated Carriage Bolt (15-Pack) | 1/4 in.-20 x 6 in. Zinc Plated Carriage Bolt (25-Pack) | 1/4 in.-20 x 2 in. Zinc Plated Carriage Bolt (100-Pack) | 1/4 in.-20 x 4-1/2 in. Zinc Plated Carriage Bolt (50-Pack) |
| Price | ||||
| Ratings | (436) | (436) | (436) | (436) |
| Fastener Length (in.) | 5.5 | 6 | 2 | 4.5 |
| Fastener Plating | Zinc | Zinc | Zinc | Zinc |
| Package Quantity | 15 | 25 | 100 | 50 |
| Measurement Standard | UNC | UNC | UNC | UNC |
| Size | 1/4 in | 1/4 in | 1/4 in | 1/4 in |
| Fastener Length | 5-1/2 in | 6 in | 2 in | 4-1/2 in |
| Fastener Thread Type | Coarse | Coarse | Coarse | Coarse |
| Material | Steel | Steel | Steel | Steel |
| View Product | View Product | View Product | View Product |
Compare Similar Carriage Bolts
| | | | |
| Brand | Everbilt | Everbilt | Everbilt | Everbilt |
| Name | 1/4 in.-20 x 5-1/2 in. Zinc Plated Carriage Bolt (15-Pack) | 1/4 in.-20 x 6 in. Zinc Plated Carriage Bolt (25-Pack) | 1/4 in.-20 x 2 in. Zinc Plated Carriage Bolt (100-Pack) | 1/4 in.-20 x 4-1/2 in. Zinc Plated Carriage Bolt (50-Pack) |
| Price | ||||
| Ratings | (436) | (436) | (436) | (436) |
| Fastener Length (in.) | ||||
| Fastener Plating | ||||
| Package Quantity | ||||
| Measurement Standard | ||||
| Size | ||||
| Fastener Length | ||||
| Fastener Thread Type | ||||
| Material | ||||
| View Product | View Product | View Product | View Product |
Specifications
Dimensions
Assembled Depth (in.)
0.58 in
Assembled Height (in.)
6 in
Assembled Width (in.)
0.58 in
Fastener Length (in.)
6
Head diameter (in.)
0.58
Details
ACQ Rated Fastener
No
Fastener Length
6 in
Fastener Plating
Zinc
Fastener Thread Type
Coarse
Fastener Type
Carriage Bolt
Finish Family
Zinc
Material
Steel
Measurement Standard
UNC
Package Quantity
25
Product Weight (lb.)
0.07
Returnable
90-Day
Size
1/4 in
Warranty / Certifications
Manufacturer Warranty
None
Questions & Answers
36Questions13Answers
Can be used on pressure treated wood?
Asked by Ganzo February 28, 20211
AnswerYes, it can be used on pressure treated wood, with correct predrilling and secured with right sized nut and washer.
What grade are the bolts?
Asked by Runty1 October 17, 20202
AnswersThe 1/2 in.-13 x 10 in. Zinc Plated Carriage Bolt (10-Pack) is grade A307.
Can these be used in contact with Aluminum?
Asked by Rob September 15, 20201
AnswerThe Rust Defender yellow carriage bolt can be used in contact with aluminum.
Hi What Grade are these bolts?
Asked by Sean July 20, 20201
AnswerThis carriage bolt is grade 304 stainless steel.
What is the weight capacity for this bolt
Asked by Mike June 8, 20201
AnswerThe tensile strength of this carriage bolt is min 60 ksi.
what grade of steel are these bolts? 2, 5 or 8?
Asked by Shilo June 5, 20201
AnswerThese carriage bolts are A307, grade A.
What is the yield strength of these carriage bolts?
Asked by Don June 4, 20202
AnswersI purchased 4 boxes at $68 dollars each, only to find random bolts that the treading wasn't manufactured correctly and had to throw them out. Out of each box 2 or 3 are bad and cannot be used.
Does this include bolts and washers?
Asked by Dan May 20, 20201
AnswerThe box contains carriage bolts, no washers.
Do they come with nuts?
Asked by NikPow May 16, 20202
AnswersThe box of carriage bolts does not include nuts. 3/8" nuts can be purchased separately.
what grade stainless steel? 400 series or 300 series.
Asked by Dan April 17, 20201
AnswerThis grade of stainless steel for this carriage bolt is 304.
Customer Reviews
Jul 15, 2020
I purchased these Everbilt 1/4" galvanized carriage bolts for the purpose of rehabbing my utility...
I purchased these Everbilt 1/4" galvanized carriage bolts for the purpose of rehabbing my utility trailer (please note pics are of project not yet finished). I also purchased matching Everbilt galvanized flat & lock washers & nuts. The Galvanized coating is smooth and complete (no globs like on some other brand's products that when knocked off leave non-galvanized surface exposed and corrode). My wallet greatly appreciates these and other related fasteners being offered in a bulk package which offers significant savings. I am a professional contractor who places value on quality and I highly recommend the entire Everbilt galvanized fastener line of products.
by Keithredbeard
Jun 9, 2020
The bolts worked perfectly for the project I needed them for as the threads were well made with n...
The bolts worked perfectly for the project I needed them for as the threads were well made with no issues threading into the nuts (as some other recent bolts I'd purchased.) I didn't lower the star for my one issue as it was not the product's fault: they were VERY hard to find on the store shelf. It took my husband and I looking for more than 20 minutes to find them while using the store app locator and all of the signage. This area of the atore could use some work.
by Felicaks
Jan 14, 2020
I use these bolts for the primary joints on my Adirondack chairs. Galvanized hardware is importan...
I use these bolts for the primary joints on my Adirondack chairs. Galvanized hardware is important for a durable outdoor chair due to the environment and the corrosive nature of pressure treated lumber.
These bolts are the best of this type I've found. The coating is smooth and uniformly applied.
by bob66
Oct 9, 2019
Well, it's a bolt... I bought these for sistering floor joists and decided to go with 4.5" becaus...
Well, it's a bolt... I bought these for sistering floor joists and decided to go with 4.5" because my old joists were not straight and I needed extra length to pull them together. They holding up pretty good. Just keep in mind that they are not for use with treated lumber.
by Bender
Oct 2, 2019
Junk Batch (?)
Purchased at the same time were 1/4” flat washers and lock washers along with 1/4 x 20 nuts. All were full boxes, not out of a bin. None, not one, (yes i tried them all) would thread into nuts. Cleaned several with wire wheel, no joy. Impact driver and vise grips. Nope. The bolts, ALL of them will twist in half before allowing ANY thing with proper threads work. Im a mechanic and have a great many items i tried. Went to competitor, bought same product (different manufacturer) worked perfect. As they are holding down 2 x 8 pressure treated boards to a trailer the nuts were applied underneath and upside down. No easy trick, especially at night. The threads HAD to be good. They werent. Cost a day.
by 4x4papa
Aug 12, 2019
The 10 pack box of Everbilt, 5/8 in. x 8 in. galvanized carriage bolts are great to have around for projects like deck framing, lawn furniture, wooden play sets or wooden fences. The large size is extremely strong and will fit a 4 x4 post and two 2 x 6 beams easily. The threaded end of the bolt is 6 inches and the total length is 8 inches. The carriage bolt has a square shank under the rounded head to lock into the wood to prevent turning as the nut is tightened. I would use a galvanized 5/8 inch washer and galvanized nut to prevent any corrosion from dissimilar metals. I prefer to use this type of carriage bolt with a nut instead of the threaded type of lag screw as it gives a much stronger joint.
by Den
Aug 4, 2019
Use these if you need to bolt 4x4 lumber together! These are hefty and just the right length for ...
Use these if you need to bolt 4x4 lumber together!
These are hefty and just the right length for two 4x4 pieces of lumber, or indeed, four 2x pieces of lumber.
The unthreaded length is about 1-3/4 inches.
Don’t forget to pick up ⅝” inch bolts and washers as this box comes with just the carriage bolts.
You can use a ⅝” wrench to turn the carriage bolt so long as the head has not yet reached the timber, so it is best to drill the hole ¾” so that the carriage bolt can be hammered in rather than threading it.
Made in China
by Dale
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