Best 4 inches square head bolts review 2021 – Top Pick

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Best 4 inches square head bolts list 2021. Detail review below the list:

Last updated on January 16, 2021 2:40 am

Detail review:

3/8-16 x 4" Carriage Bolts, Round Head, Square Neck, Stainless Steel 18-8, Full Thread, Plain Finish, Flat Point, Quantity 10 by Fastenere

 in stock
Amazon.com
as of January 16, 2021 2:40 am

Features

  • Thread Diameter 0.375"
  • Head Diameter 0.844"
  • Head Height 0.208"
  • Square Neck Height 0.219" / Square Neck Width 0.39"
  • 18-8 Stainless Steel provides strength and offers good corrosion resistance in many environments.

L.H. Dottie TB364DS Toggle Bolt, Mushroom Head, Slotted/Square, 3/16-Inch Diameter by 4-Inch Length, Zinc Plated, 50-Pack

 in stock
Amazon.com
as of January 16, 2021 2:40 am

Features

  • Package contains 50 toggle bolts
  • Mushroom head
  • Zinc plated steel
  • Combo drive
  • Spring wing type

L.H. Dottie TB84DS Toggle Bolt, Mushroom Head, Slotted/Square, 1/8-Inch Diameter by 4-Inch Length, Zinc Plated, 50-Pack

 in stock
Amazon.com
as of January 16, 2021 2:40 am

Features

  • Package contains 50 toggle bolts
  • Mushroom head
  • Zinc plated steel
  • Combo drive
  • Spring wing type

(15) Square Head 5/8-11 x 4" Bolts Unplated A307 15/16" Sq

 in stock
Amazon.com
as of January 16, 2021 2:40 am

Features

  • Thread Diameter: 5/8-11
  • Length: 4
  • Specification: ASTM A333
  • Head Type: Square
  • Finish: Plain

Small Parts FSC5164SHB Grade A Steel Square Head Bolt, 5/16"-18" Thread Size, 4" Long (Pack of 10)

 in stock
Amazon.com
as of January 16, 2021 2:40 am

Features

  • Material: steel
  • Thread size: 5/16''-18
  • Length: 4 inch
  • Low-Strength Grade A Steel Square Head Bolt, 5/16"-18" Thread Size, 4" Long (Pack of 10)

Small Parts FSC504SHB Grade A Steel Square Head Bolt, 1/2"-13" Thread Size, 4" Long (Pack of 5)

 in stock
Amazon.com
as of January 16, 2021 2:40 am

Features

  • Material: steel
  • Thread size: 1/2''-13
  • Length: 4 inch
  • Low-Strength Grade A Steel Square Head Bolt, 1/2"-13" Thread Size, 4" Long (Pack of 5)

Universal Headboard or Footboard Hardware Nuts and Bolts 4 inches and 2 1/2" Long,for Furniture, Cots, Beds, Crib and Chairs Round Head Square Neck Bolt,Carriage Bolt

 in stock
Amazon.com
as of January 16, 2021 2:40 am

Features

  • High quality barrel bolt nuts kit is ideal for repairs and replacement. This set of barrel bolts nuts can fit for many different things, such as beds, chairs, cots, crib, sofa and different kinds of furniture, meet your various needs and they can also work well in joining wood, boards, kitchen worktops, etc.
  • Our package is designed to fit most headboards or footboards. Whether your headboard is thick or thin we intentionally include two different length bolts inside the package.Included is Four 2½" bolts for thinner headboards and four 4" bolts to accommodate thicker headboards. Plus 8 nuts and washers
  • Made of high quality 304 stainless steel, which features is strength and offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas. They have superior rust resistance and the excellent of oxidation resistance, which can ensure long time using.
  • If you need to connect both headboard AND footboard you will need to purchase a quantity of 2 universal set pack
  • The average error is less than 0.01mm. The Nuts and flat washers expand the contact area and reduce the pressure in order to protect the screws and parts. Compact and force uniform screw thread is not easy to out of shape and slid in the process of rolling and installation.

3/8"-16 x 4" Carriage Bolts Grade 5 COARSE ZINC CR+3, Full Thread, Size: 3/8"-16, Length: 4", Head: Round, Drive: External Square, Steel, Zinc, Thread Type: UNC (Inch) (Quantity: 25)

 in stock
Amazon.com
as of January 16, 2021 2:40 am

Features

  • Jet Fitting & Supply Corporation has been providing fasteners since 1946. Feel safe when buying from Jet!
  • Carriage Bolts, also called Coach Bolts or Round Head Square Neck Bolts, from Jet Fitting have a dome shaped head and square neck.
  • Carriage Bolts are typically used for wood construction like docks, swing sets, outdoor decks along with other surfaces where a smooth surface is needed
  • The square shoulder under a round head allows the bolt to resist turning when the nut is tightened.
  • All carriage bolts under 6 inches are fully threaded, lengths over 6" always have 6 inches of thread.

1/4"-20 X 4" Stainless Phillips Truss Head Machine Screw, (25pc), Coarse Thread, 18-8 (304) Stainless Steel, by Bolt Dropper

 in stock
Amazon.com
as of January 16, 2021 2:40 am

Features

  • 100% SOLID STAINLESS STEEL: These Truss Head Screws are made of 18-8 (304) Stainless Steel which is one of the highest forms of corrosion resistant metals, making it last longer than other hardware on the market today.
  • SCREWS THAT YOU CAN DEPEND ON: Our Truss Head Machine Screws are very strong and are great for both indoor and outdoor use. This stainless is superior to regular steel and provides excellent rust resistance.
  • GREAT TO KEEP AROUND: Bolt Dropper stainless hardware is great to have around for use in wet environments. Bolt Dropper hardware is the highest quality available on the market and we stand by our claim 100%. They are strong, corrosion resistant and will support all of your projects.
  • DIMENSIONS: Diameter: 1/4" | Length: 4" | Threads per Inch: 20 | Thread Type: Coarse | Quantity: 25 pcs | Material: 18-8 (304) Stainless Steel
  • LIFETIME GUARANTEE: We are so confident that our product is the best on the market that we offer a NO HASSLE LIFETIME GUARANTEE.

(5 pc)3/8-16 x 4" Long Square-Neck Carriage Bolts Set w/Nuts & Washers,Zinc-Plated,Carbon Steel Grade 2,by Fullerkreg

 in stock
Amazon.com
as of January 16, 2021 2:40 am

Features

  • Carriage Bolts are a robust and durable fastener solution. Carriage Bolts feature a square section underneath their head, which makes them self-locking when used within a square hole.
  • About half the strength of medium-strength bolts, these Grade 2 bolts are for light duty fastening.
  • Zinc-plated steel bolts resist corrosion in wet environments.Fullerkreg Fasteners are always backed by a 100% satisfaction guarantee
  • Imperial Carriage Bolts conform to ANSI standard B18.5. Diameters is 3/8 inch and lengths is 4 inch.
  • Package includes ten each of bolts, hex nuts & washers

Best 4 inches square head bolts Buying Guide

Before you buy a 4 inches square head bolts , you should clarify your doubts in advance. Get help from other users’ opinions. Are there other things to consider besides the details described? Is the color correct, as you saw in the picture of the online shop? What is the actual content? Does the product still work after being exposed to water?

These are all questions that you as a consumer will surely ask. The manufacturers certainly want to achieve high sales with their products. The better known the brand is, the better the products are. Of course, there are also small and unknown brands that offer high quality products.

Therefore, pay attention to additional purchasing criteria. After all, it’s obvious that price is a deciding factor. If the price is not proportional to the quality, I recommend that you buy another product.

Conclusion

Just consider my rankings for best 4 inches square head bolts above as a suggestion. The final choice is yours. Hope you can choose the best for you. Thanks for your reading. Have a nice day !