The Best black oxide carriage bolts of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best black oxide carriage bolts of 2022. Check our ranking below.
2,516 (random num) Reviews Scanned
Rank No. #1
1/4-20 x 3-1/2" Black Carriage Bolts with Nuts and Washers Kits (10 Sets), 304 Stainless Steel 18/8, Black Finish, Round Head, Square Neck, Heavy Duty Bolts, Indoor Outdoor Fastening Bolts, Fayeploo
- Thread Size: 1/4-20; Thread Pitch: 20 TPI Coarse Thread Full Thread Coverage; Bolt Thread Length: 3.5 inch
- Package Contents: 10 Sets (bolts + matched nuts, flat washer and lock washer)
- Material: The sets are all made of 304 stainless steel 18/8; Excellent toughness; Good rust and corrosion resistance in both indoor and outdoor use; Extra Black Oxide treatments make it more chemical resistance while not impact strength or hardness
- Carriage Dia: 0.59 inch (max); Square Neck Height: 0.15 inch (max); Please note that the screw length 3.5 inch includes the square neck part
- Feature: (1) Can be easily tightened; (2) Withstand heavy vibrations and impacts for machinery usage; (3) Resist loosening over time; (4) Black Coating will not easily wear off over time; (5) Widely used in home improvement and industry applications due to their versatility and strength, their sturdy design ensure a secure connection
Rank No. #2
1/4-20 x 1-1/2" Carriage Bolts Screws, Stainless Steel 18-8 (304), Round Head, Square Neck, Fully Threaded, Black Finish, 25 PCS
- The carriage bolts are 100% stainless steel 18-8 (304) which offers a high level of chemical and corrosion resistance.
- System of Measurement: Inch; Finish: Black Finish.
- Thread Diameter: 1/4 Inch; Thread Count: 20; Head Diameter: 0.594 Inch; Head Height: 0.145 Inch; Screw Length: 1-1/2 Inch.
- Package Included: 25 x Carriage Bolts.
- These bolts can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems.
Rank No. #3
3/8" x 2-1/2" (25 Pack) Black Carriage Bolt Kit, Grade 307A, Ceramic Coated for Exterior Use, 2X Rust Resistance of Galvanized by Makers Bolt
- Diameter: 3/8" | Length: 2-1/2" | Head diameter: 0.813" | Nut diameter: 3/8" | Nut wrench size: 9/16" | Washer outside diameter: 1"
- Kit includes 25 carriage bolts, 25 USS thick washers, 25 hex nuts
- 5-Layer ceramic black ruspert coating for superior rust resistance (2X protection compared to galvanized)
- Grade 307A carriage bolts, grade 2 hex nuts, and USS flat washers
- The flat head provides a semi-flush finish and is perfect for decks, gazebos, pergolas, and other heavy duty applications
Rank No. #4
The Hillman Group Black 852517 5/16 x 3 Carriage Bolt Finish 3-Pack, 5/16" x 3"
- Used to fasten straps, hinges and other gate items
- Ideal for outdoor applications
- Decorative finish to match with other hardware
- Made of a strong and durable steel material
- 3 pieces per retail package
Rank No. #5
1/4"-20 x 1 1/4" (FT) Coarse Thread Grade 5 Carriage Bolts Medium Carbon Steel Black Oxide - Pack of 100
- How to use - Carriage bolts are ideal to use in square holes. The square neck prevents it from turning once screwed in. The bolts should not be used in outdoor application because they will rust.
- Material Compatibility - Ideal to use in wood-to-wood or wood-to-metal fastening.
- Durable & Reliable - These black bolts are coated with black oxide. Besides providing a clean and nice look the extra layer protects against abrasion.
- Pack of 100 - This carriage bolt set includes 100 bolts. Interested in a different pack number? Check out our inventory, we offer a wide range of packs.
- Variety & Quality - We offer a large selection of products made in the USA as well as internationally. With an inventory of fasteners in multiple different grades, alternative finishes, as well as a variety of different diameters and lengths, we’re proud to say that we can offer quality products for your projects. All our inventory is fully traceable to the manufacturer.
Rank No. #6
ASMC Industrial 1/4-20 x 2-1/2" Coarse Thread Grade 5 Carriage Bolt - Medium Carbon Steel for Heavy-Duty Fastening - Corrosion-Resistant Black Oxide Finish, Pack of 50
- GRADE 5 DURABILITY: This carriage bolt is made from medium carbon steel, offering solid strength for a wide range of fastening tasks. The Grade 5 rating ensures it performs well in demanding applications, making it a reliable choice for various projects.
- BLACK OXIDE FINISH FOR AESTHETIC APPEAL: These bolts feature a black oxide finish that offers a refined, dark appearance, delivering a polished look suitable for various applications where functionality and style are desired.
- COARSE THREAD FOR FASTER ASSEMBLY: Designed with a coarse thread pattern, this bolt allows for smoother, faster assembly, particularly when used with softer materials like wood or plastic. It helps ensure a secure fit with minimal effort, ideal for large-scale projects.
- SQUARE NECK FOR A SECURE HOLD: Each bolt features a square neck that locks it into place, preventing rotation during tightening. This design ensures a stable, flush finish, perfect for applications where the bolt needs to remain stationary while fastening.
- AVAILABLE IN A 50-PACK FOR CONVENIENCE: Offered in a convenient 50-pack, these ASMC Industrial carriage bolts are ideal for larger projects, ensuring you have plenty on hand for consistent use. At 1/4-20 x 2-1/2 inches, they fit a variety of applications, from woodworking to metalwork.
Rank No. #7
Zonon 25 Sets 1/4-20 x 2-1/2" Stainless Steel Carriage Bolts and Nuts Kit Round Head Square Neck Carriage Bolts Screws and Hex Nuts and Flat Washers, Stainless 18-8 Full Thread Coverage (Black)
- Versatile and Convenient Kit: this package includes 25 stainless steel carriage bolts (1/4-20 x 2-1/2"), 25 hex nuts (1/4"-20), and 25 flat washers, ensuring you have an ample supply for daily use and replacements; The comprehensive selection of fasteners caters to various needs, allowing for versatile applications
- Precision Sized and Thread Type: with a thread size of 1/4-20 inches and a screw pitch of 20 TPI, these carriage bolts and screws are meticulously designed to fit seamlessly into your projects; The coarse thread type further enhances their grip and holding strength, providing a sturdy and dependable connection
- Optimal Dimensions: the bolt head diameter is approximately 0.59 inches (15 mm), while the round head height is about 0.14 inches (3.5 mm); The overall screw length, including the neck, is around 2-1/2 inches; These precise dimensions ensure compatibility with a wide range of applications and ensure reliable performance
- Reliable Corrosion Resistance: made of 304 stainless steel, the carriage bolts and nuts kit is strong and reliable, resistant to corrode, making them suitable for both indoor and outdoor applications
- Secure and Reliable Fastening: the round head design and square neck of these carriage bolts enable a secure and self locking fit when appiled in square holes; The combination of the bolts' useful shape and the accompanying hex nuts and flat washers ensures reliable and stable fastening for your projects
SaleRank No. #8
CNQLIS Carriage Bolts Kit, 3/8 x 3-1/2 Black Carriage Bolts, Galvanized Carriage Bolt(25PCS)
- PRACTICAL DIMENSIONS: These 3/8 x 3-1/2 inch carriage bolts provide robust holding power for demanding projects. Designed to cater to a variety of structural needs, their precise size ensures reliable performance across diverse applications. Whether for pavilion beams or roof joists, these carriage bolts 3/8 deliver dependable support for heavy-duty tasks
- COMPREHENSIVE KIT: This carriage bolts and nuts kit includes 25 bolts, 25 nuts, and 25 washers, offering a complete solution for multiple uses. Perfect for both small-scale repairs and larger construction tasks, this kit ensures you always have the right connectors for a seamless installation experience
- HIGH-QUALITY MATERIALS: These black carriage bolts offer exceptional durability and rust resistance crafted from premium low-carbon steel with a black galvanized coating. Ideal for home improvement and industrial projects, their robust construction ensures long-lasting performance even in challenging environments
- SLEEK APPEARANCE: The almost-flat head design of these galvanized carriage bolts ensures a flush finish with the installation surface. This feature maintains the aesthetic appeal of your projects, making these carriage bolts both functional and visually discreet in any construction or DIY task
- SUPERIOR FASTENING: Specifically engineered to secure wooden components to wood or metal, these 3/8 carriage bolts excel in heavy-duty tasks such as decks, pavilions, and other structural elements. Their exceptional holding strength and ease of use make them indispensable for ensuring stability and reliability in demanding projects
SaleRank No. #9
Zonon 12 Sets 1/4 x 1-1/2 Inch Black Carriage Bolt Kit Galvanized Carriage Bolt Set Includes Rust Resistance Washers and Nuts for Fastening Accessories
- Widely Applied: to the fastening of wooden components to wood or metal, they are suitable for heavy applications like decks, pavilion, crib screws, furniture and other structures that require sturdy support
- Comprehensive Kit: the complete carriage bolt kit comprises enough carriage bolts, washers, and nuts, providing a generous amount of connectors that allow for several uses, making it a practical choice even for larger projects
- Quality Material: these long bolts are made of galvanized material, characteristically known for their rust resistance, offering an ideal protective capacity; This quality material also ensures a long lasting and reliable performance, making it a worthy investment in home improvement and industrial projects
- Nice Fastening Performance: designed for securing wooden parts to wood or metal, the galvanized carriage bolt set makes operative tasks easier and more effective; The carriage bolt design contributes significantly to nice fastening performance; Their holding strength ensures the stability and reliability of your constructions
- Practical Dimension: the carriage bolt has many different sizes for you to choose, providing holding power for heavy applications; This various size can cater to a wide variety of needs, ensuring dependable and robust structural support across a host of applications
Rank No. #10
uxcell M6 x 20mm Carriage Bolt Kit, 12 Set Round Head Square Neck Screws, Carriage Bolts Screws Set Includes Washers and Nuts - Carbon Steel Black Oxide for Fastening Accessories
- Thread Diameter: M6x1.0mm; Head Diameter: 13mm/0.51-inch; Square Neck Width: 6mm/0.24-inch; Screw Length: 20mm/0.79-inch; 12pcs x Carriage Bolt, 12pcs x Washers, 12pcs x Nuts
- [Material] Made of low carbon steel black oxide to make carriage bolts much more strength. There are no issues of biting thread broken compared with non-rust steel bolts in high and low-temperature environments.
- [Secure and Reliable] The round head design and square neck of these carriage bolts enable a secure and self-locking fit when applied in square holes; The combination of the bolt's useful shape can be used with hex nuts and flat washers ensures reliable and stable fastening for your projects.
- [Wide Application] Carriage bolts are used to fix metal to wood. Widely used in homes and offices, both indoors and outdoors, such as securing headboards, footboards, doors, bed frames, furniture, TV, engineering, or other DIY projects.
- [Carriage Bolt Screws] The carriage bolt has many different sizes for you to choose from; These various sizes can satisfy a wide variety of needs, ensuring robust structural support across a host of applications.
Last update on 2025-04-07 / Affiliate links / Images from Amazon Product Advertising API
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