SKU: 95486828722

Hillman 5/16 in. Diameter x 4-1/2 in. Length Zinc-Plated Steel Hex Bolt, 50 Pack

Sale price$35.09 Regular price$38.99
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Description

Hillman 5/16 in. Diameter x 4-1/2 in. Length Zinc-Plated Steel Hex Bolt, 50 PackZinc Plated Steel Hex Bolt, 5 16 in. x 4 1 2 in. (50 Pack) Grade 2 zinc plated steel hex bolts for general purpose fastening in wood, metal, or combined materials. Partially threaded for strong grip and reduced shear movement, offering dependable corrosion resistance for typical indoor outdoor use. Key Features: General Purpose Strength: Grade 2 steel suitable for most everyday fastening tasks Corrosion Resistant Finish: Zinc plating helps protect

Zinc-Plated Steel Hex Bolt, 5/16 in. x 4-1/2 in. (50-Pack)

Grade 2 zinc-plated steel hex bolts for general-purpose fastening in wood, metal, or combined materials. Partially threaded for strong grip and reduced shear movement, offering dependable corrosion resistance for typical indoor/outdoor use.


Key Features:

  • General-Purpose Strength: Grade 2 steel suitable for most everyday fastening tasks
  • Corrosion-Resistant Finish: Zinc plating helps protect against rust for typical use
  • Secure Hold: Partially threaded shank minimizes shear movement between materials
  • Versatile Applications: Ideal for wood-to-wood, wood-to-metal, and metal-to-metal projects
  • Bulk Convenience: 50-pack boxed for jobsite and workshop efficiency

Specifications Table:

Specification Details
Diameter 5/16 inch
Length 4-1/2 inch
Material Steel
Finish Zinc Plated
Grade Grade 2
Thread Type Coarse
Head Style Hex
Shank Partially threaded
Number in Package 50 pack
Packaging Type Boxed
Unit of Measurement Imperial (inches)

Frequently Asked Questions (FAQ):

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


Q: What washers or nuts should I pair with these?
A: Use Grade 2 washers and nuts with a matching zinc-plated finish for best compatibility.


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


Q: Do I need to pre-drill holes?
A: Yes, pre-drilling is recommended to ensure proper fit and prevent splitting in wood.


Q: What thread type do these bolts use?
A: Coarse thread.


Streamlined Hardware with Everyday Brilliance

These zinc-plated hex bolts bring clean, utilitarian polish to practical projects. The elongated shank and crisp hex head evoke industrial simplicity while delivering steadfast performance. Style them with matching zinc hardware for a cohesive, modern workshop aesthetic. A reliable essential, they lend quiet luxury to the details that hold your spaces together.


Upgrade your project’s hardware with dependable, corrosion-resistant hex bolts—add this 50-pack to your cart today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 95486828722

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4.4 ★★★★★
Based on 16 reviews
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Product Reviews
J
Verified Purchase
JK
Whiting, US
★★★★★ 5
Take the guess work out of the flow!
Size: 58.3mm, Color: Black
I got this because when my wife makes espresso, it's watery. When i make it, it's fine. We needed a controlled Tampering method so we both do the same job. This is heavy, and being able to use the whole hand instead of fingers, not much effort is needed. Since we purchased this, we were able to make consistent espresso shots for sure.
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Reviewed in the United States on July 12, 2024
R
Verified Purchase
Reviewer JR
Grantham, US
★★★★★ 3
Not as good as I expected
When it first came, the box fell apart as I was taking it out, and a lot of some kind of dirt or sand kept falling out all over my table and floor. I had the take the entire thing apart and thoroughly wash it. After drying age reassembling it, I tried it on my portafilter that came with my Breville Barista Express, but, somehow, it doesn't always make the tamping level. You would think with the ridge that rests on the side of the portafilter that it would force it to remain level, but, somehow, it doesn't, at least not consistently. It also has varying lengths (heights, or depths), and a single spring tension, so you may still over tamping or under-tamp. I was expecting it would have a censor that would just detect once it reached 30 lbs of force and cut off after that, similar to a torque screwdriver, but that's not what this is. I'll still give it 3 stars because, despite the problems mentioned above, it at least produces some amount of consistency, even if that isn't measurable; but, I can't give it 5 stars because of those issues mentioned above.
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Reviewed in the United States on January 7, 2025
B
Verified Purchase
Bernard Eisenfeld, M.D.
Belleville, US
★★★★★ 5
This is the one.
Size: 58.3mm, Color: Black
As an el Supremo Coffee Geek, I've wasted money on lots of different tampers. Save your money and buy this one or it's equivalent. This thing is heavy duty, solid, well-made, self-leveling, tamps at 30 pounds and is fool-proof even for fools. Also, it's a palm tamper meaning more fun and more satisfying to use as you prep the puck for your morning buzz. Buy it. You will thank me.
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Reviewed in the United States on March 30, 2024
L
lesserof2weevils
Chelsea, US
★★★★★ 5
Super easy to use and takes the guess-work out of getting even pressure on the grounds
Size: 58.3mm, Color: Black, Size: 58.3mm, Color: Black
I have been using a hand tamper for many years and have a good idea of the pressure I am applying to the grounds in the portafilter. I honestly considered spring tampers to be a bit silly. But this tamper really does take the guess-work out of pressing the coffee grounds. The shroud helps guide the press so that pressure is applied even and flat across the surface. With the manual tamper, there will be some play when pressing, or some unevenness in pressure. This is especially true when cranking out many espressos during a breakfast party with friends. Having the spring tamper makes quick work of turning out a lot of coffees with consistency. There are no instructions for taking this tamper apart to clean inside, and you may not really need to do that very often. After each use, just pull back the shroud (the black piece that moves up and down) and wipe off the tamper (the shiny steel part). This will help prevent grounds from working their way inside. If you do want to take it apart, it’s easy. Pull back the shroud and unscrew the tamper. It will come apart into three pieces. Wipe the pieces off and reassemble. Super quick and easy. This tamper is very heavy. My scale shows 656 g (about a pound and a half). It fits the portafilter exactly, with no slop. Just place on top of grounds and press!. Don’t even worry about pressure, just push down all the way. Overall I had fun using this tamper versus my manual one. And since I make myself a cappuccino very early in the morning, I don’t have to be very awake to get a good pack on the grounds and get my coffee fast!
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Reviewed in the United States on January 10, 2024
C
Verified Purchase
Cooper
Waukegan, US
★★★★★ 5
Great upgrade
Size: 54mm Fits Breville Barista/Bambino/Infuser
I just got a Breville barista express for Christmas and was searching for upgraded tools. I stumbled across this accessory kit and was worried about the quality. I’m pleased to say I’ve very happy with the quality for the price that you get these for, all the tools are heavy and feel sturdy. My coffee is much better not. This fits the barista express perfect. The metal design is very nice in the hands and easy to use. Functions exactly as I would expect. Overall great buy for anyone looking for an affordable upgrade.
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Reviewed in the United States on January 20, 2026

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