1/4in x 2in (100 Pack) Galvanized Carriage Bolt Kit - Exterior Grade

In this review the 1/4in x 2in (100 Pack) Galvanized Carriage Bolt Kit is evaluated for homeowners and builders who need reliable exterior fasteners. The kit stands out for offering a full set of hardware - carriage bolts, thick USS flat washers and hex nuts - all with a hot dip galvanized coating rated for outdoor and ACQ-treated lumber use. For anyone fitting decks, pergolas or gazebos who wants consistent dimensions and corrosion resistance, this kit provides a practical, economical solution without fuss.

Key Features

• Complete kit: Includes 100 carriage bolts, 100 USS thick washers and 100 hex nuts so projects can proceed without hunting extra parts.
• Hot dip galvanized coating: Provides superior corrosion resistance for exterior use and compatibility with ACQ-treated lumber.
• Semi-flush flat head: The flat head yields a neat, semi-flush finish appropriate for visible decking and outdoor structures.
• Standardized dimensions: 1/4in diameter and 2in length with 1/4in-20 nut threads and 7/16in wrench size for easy handling with common tools.
• Built to specs: Manufactured to meet or exceed industry standards for mechanical fasteners, reassuring for structural use.

Who It's For

The kit is aimed at DIYers, deck builders and small contractors who install outdoor timber structures and want a ready-made bulk supply of hardware matched for size and finish. It is particularly useful when working with ACQ-treated lumber since the hot dip galvanizing reduces the risk of accelerated corrosion.

Those who should look elsewhere include users needing larger diameters, longer lengths or stainless steel for marine saltwater exposure; this kit is optimized for general exterior and structural timber use rather than specialized corrosive environments.

Pros & Cons

Pros

• Consistent quality across all 100 pieces makes large projects faster and predictable.
• Hot dip galvanized finish offers proven corrosion resistance for outdoor structures.
• Included USS thick washers provide better load distribution and a cleaner finished appearance.

Cons

• Not stainless steel, so extreme marine or highly corrosive sites may require a different alloy.

Specifications

Diameter	1/4in
Length	2in
Head diameter	0.578in
Nut	1/4in-20 Grade 2/A, wrench size 7/16in
Washer	USS thick, outside diameter 47/64in
Coating	Hot dip galvanized for exterior use
Pack contents	100 carriage bolts, 100 washers, 100 hex nuts

Our Verdict

The 1/4in x 2in carriage bolt kit is a solid, cost-effective choice for homeowners and professionals building decks, pergolas and other outdoor timber structures. With a complete set of bolts, thick USS washers and nuts plus hot dip galvanizing for ACQ compatibility, it delivers dependable corrosion protection and consistent sizing that saves time on installation and reduces callbacks.

Frequently Asked Questions

Are these bolts suitable for ACQ-treated lumber?
Yes, the hot dip galvanized coating is specified as suitable for use in ACQ-treated lumber and offers enhanced corrosion resistance.

What wrench size is required for the nuts?
The hex nuts are 1/4in-20 and require a 7/16in wrench for tightening.

Does the kit include washers and nuts?
Yes, the kit includes 100 USS thick flat washers and 100 Grade 2/A hex nuts to complete installations.