Hillman 5/8 in. Diameter x 2-1/2 in. Length Zinc-Plated Steel Hex Bolt, 25-Pack
SKU: 68638334180

Hillman 5/8 in. Diameter x 2-1/2 in. Length Zinc-Plated Steel Hex Bolt, 25-Pack

Sale price$34.19 Regular price$37.99
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Description

Hillman 5/8 in. Diameter x 2-1/2 in. Length Zinc-Plated Steel Hex Bolt, 25-PackHillman Zinc Plated Steel Hex Bolt, 5 8 in. x 2 1 2 in., 25 Pack Grade 2 zinc plated steel hex bolts for general purpose fastening in wood, metal, and composite materials. Coarse thread, partially threaded shank delivers strong grip and reduced shear movement, ideal for structural assemblies and repairs. Key Features: General Purpose Strength: Grade 2 steel suitable for most everyday fastening needs Corrosion Resistance: Zinc plated finish helps

Hillman Zinc-Plated Steel Hex Bolt, 5/8 in. x 2-1/2 in., 25-Pack

Grade 2 zinc-plated steel hex bolts for general-purpose fastening in wood, metal, and composite materials. Coarse-thread, partially threaded shank delivers strong grip and reduced shear movement, ideal for structural assemblies and repairs.


Key Features:

  • General-Purpose Strength: Grade 2 steel suitable for most everyday fastening needs
  • Corrosion Resistance: Zinc-plated finish helps protect against rust for typical indoor/outdoor use
  • Reliable Grip: Partially threaded shank minimizes shear movement between materials
  • Versatile Applications: Works for wood-to-wood, wood-to-metal, and metal-to-metal connections
  • Bulk Convenience: 25-pack boxed for projects and maintenance stock

Specifications Table:

Specification Details
Brand Name Hillman
Finish Zinc Plated
Grade Grade 2
Head Diameter 5/8 inch
Length 2-1/2 inch
Material Steel
Number in Package 25 pack
Packaging Type Boxed
Thread Type Coarse
Unit of Measurement Imperial
Package Height 3.2 in
Package Width 4.3 in
Package Length 5.3 in
Package Weight 7 lbs

Frequently Asked Questions (FAQ):

Q: Are these bolts fully threaded?
A: No. They have a partially threaded shank to improve grip and reduce shear movement.


Q: What thread type do they use?
A: Coarse thread, suitable for general fastening applications.


Q: Can these be used outdoors?
A: The zinc plating offers typical corrosion resistance; for harsh environments, consider higher-grade or stainless options.


Q: What tools are required for installation?
A: Install with a matching wrench or socket sized for the 5/8 in. hex head, along with compatible nuts and washers.


Q: Do I need matching washers and nuts?
A: Yes. Use washers and nuts of similar grade and finish (Grade 2, zinc-plated) for best performance.


Clean, Industrial Hardware with Everyday Versatility

These zinc-plated hex bolts bring a crisp, utilitarian polish to any build, marrying function with a refined, industrial aesthetic. The partially threaded shank is a subtle design detail that ensures a tight, secure connection you can trust. Pair with matching zinc hardware on exposed shelving or metal framing to keep the look cohesive and intentional. Essential, reliable, and quietly sophisticated—hardware that elevates the craft of your space.


Secure your projects with reliable, corrosion-resistant performance—add this 25-pack of Hillman hex bolts to your cart now.

Shipping Notes
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Exchange/Return Notes
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SKU: 68638334180

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Fred Fanning
Lowell, US
★★★★★ 5
Fascinating Book
Format: Audiobook
This incredible book tells the story of people's experiences being abducted by Aliens. It includes information from many abductees, not just the author's. I have never read a book like this, and although I don't know about aliens, I believe these people experienced something horrific. Their experiences must be investigated. Bravo to the author for sharing his experiences with his readers.
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Reviewed in the United States on February 1, 2025
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Dr. Know
Charlottesville, US
★★★★★ 3
I had heard of this book when it made a splash in 1987, I did not have time then...
Format: Paperback
I did not have time to read this book when it came out because I was a young father, and I was at the beginning of my professional career. Now, almost 40 years later, I am a grandfather and I within months of the end of my professional career. So I made time to read it, finally. What instigated me to do so now, is all the recent activities concerning UAPs and the unexplained sightings of UAPs in the night skies over military bases in New Jersey and, also, in England. Put simply, I was in the mood to give this book a chance. The "story" starts strong with Whitley Strieber's descriptions of his apparent contact with the "visitors." He is a talented fiction writer and that comes through, but after the first 60 or so pages, the story drags and becomes increasingly repetitive, and hard to read. The penultimate chapter may have read well in 1987, with its buzziness, and the power of three....but in 2025 it doesn't. It just sounds so out-of-date like an Oldsmobile Cutlass with a T-top. (Yes that was a real car...Google it.) Then, there are chapters that are nothing more than transcripts of what Whitley, and his late wife, Anne, had said while in sessions under hypnosis; they are barely understandable, let alone readable. The allusions to quantum mechanics later in the book adon't fit very well, and seem to be an afterthought and are very hard to take. Clearly, Streiber's ideas are not grounded in the science, but in a kind of typical layman's misunderstanding of quantum mechanical "concepts." That is there is an extension of the theory into things it is not meant to explain, and proves that having a little knowledge about something is dangerous. All-in-all, I suffered through the "last," 229 pages (including two appendices), but I can say I have read it from cover to cover. What is my opinion of the abduction story? I hate to be unkind, but it seems more like the memory of a hallucination, or of a very bad and graphic dream, than something that actually happened. It seems to be the product of a fertile and creative mind of a talented author. Yes, there are other people who also claim to have been abducted, and there are some commonalities among their claims, and I know that their numbers should add credibility to their stories, and I know it is unkind to doubt them, but I do and I remain skeptical. So did Whitley Streiber write this book knowing full well that is was actual a work of fiction while claiming it was non-fiction, or did he write it honestly thinking that he was sharing objective truths? On this, it is very hard to know...it is plausible that he really believes these things happened to him, and that he wrote about them sincerely. The author himself seems never to be sure. His lie detector results seem to indicate that he is telling something that he truly believes, but one never knows for sure. To sum up, I am glad the book is no longer a mystery to me. My curiosity was satisfied and that is enough for me, but it took work.
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Reviewed in the United States on February 8, 2025
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Steve D.
San Leandro, US
★★★★★ 5
Read this book to begin your study!
Format: Kindle
If you can read only one book on UFO abductions, read this one! This book is amazing and will give you a very good idea about what these UFO abductees are experiencing. This is the book that launched me on an ongoing UFO study which has led to my obtaining and reading tons of books on UFO and abductions. While not an abductee myself and, in fact, I have arguably never even seen a UFO, I know that there is something to this phenomenon that we do not understand. The interest seen in the public square now and the government's greater focus on the UFO phenomena leads one to conclude that what is happening is real and unknown. While I personally believe that the UFO phenomena is a spiritual one involving the unseen spirit world, that is just one of the many theories out there. Read this book and embark on a fascinating journey for yourself.
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Reviewed in the United States on May 14, 2022
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lynn sweeney
Bozeman, US
★★★★★ 5
Loved the book
Format: Paperback
Awesome book. Great reading
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Reviewed in the United States on November 19, 2025
K
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Karen
Lake Worth, US
★★★★★ 4
Classic in the UFO Lore
Format: Paperback
Fascinating read about the abduction phenomena from a first hand account.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026

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