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Hillman 3/8-in x 6-in Zinc-plated Coarse Thread Hex Bolt

Name: Hillman 3/8-in x 6-in Zinc-plated Coarse Thread Hex Bolt
Brand: Hillman
SKU: 3828455
Price: 1.43 USD
Rating: 4.7 (194 reviews)

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4.7

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Shipping Details

Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. They can be used to fasten wood to wood, wood to metal or metal to metal applications. Be sure to use washers and nuts that are the same grade and finish as the hex bolt. Pre-drilled holes are required.

Hex bolts are machine bolts designed to fasten facing pieces of wood and/or metal
The zinc plating is rust resistant and provides a beautiful, consistent finish, but may not work for all exterior projects
Pre-drill a pilot hole the same diameter as the hex bolt you are using
Commonly used in home and commercial projects involving wood-to-wood and wood-to-metal connections
Partially threaded shank allows for a stronger grip between objects and less shear movement

General
Finish	Zinc-plated	Unit of Measure	Count
Manufacturer Color/Finish	Zinc	Head Type	Hex
Material	Steel	Measure Type	Standard (SAE)
Package Quantity	1	Thread Type	Coarse
Grade	A2	Fastener Speed Code	HDH

Dimensions
Bolt Diameter	3/8-in	Length Measurement	6-in

Features
Bolt Thread Pitch	16	Full Thread	No

Warranty
Warranty	None

Certifications
ACQ Approved	No	CA Residents: Prop 65 Warning(s)	No

Miscellaneous
UNSPSC	31161600

Check out the Best Selling Hex Bolts on Lowes.com

Review

4.7 out of 5

194 Reviews

96% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

This product is a well-made, durable bolt that customers found suitable for a variety of DIY and construction projects. Most reviewers noted the bolts had smooth threads and a good fit, allowing them to securely hold items together. While a few customers mentioned the bolts were slightly longer or a different size than needed, the overall feedback indicates this is a reliable, high-quality product that meets customer expectations.

Customer review summary generated by AI, including incentivized reviews.

194 Customer Reviews

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Customer Sentiment

Customer liked

Again check size

Would Recommend

Had all sizes

Ernie62April 3, 2026
From 5_SLASH_16-in x 4-in Zinc-Plated Coarse Thread Hex Bolt Verified Purchaser

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Perfect

Perfect fit to the exact bolt I needed to replace. Wellade - SOLID

JpWoodApril 2, 2026
From 5_SLASH_16-in x 4-in Zinc-Plated Coarse Thread Hex Bolt Verified Purchaser

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Good

Would Recommend

These worked well.

TUJBMarch 17, 2026
From 5_SLASH_8-in x 4-in Zinc-Plated Coarse Thread Hex Bolt Verified Purchaser

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not a lot of screw teeth

Would Not Recommend

not a lot of screw teeth. beware tha it is only on the lower bit

phphMarch 15, 2026
From 5_SLASH_16-in x 5-in Zinc-Plated Coarse Thread Hex Bolt Verified Purchaser

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Response from Customer Service@Hillman

We are very sorry to hear that this product was unsatisfactory and did not meet your expectations. We understand how disappointing that can be. Pleas...

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Hillman 3/8-in x 6-in Zinc-plated Coarse Thread Hex Bolt

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