Hillman 7/16 in. Diameter x 3-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 25-Pack
SKU: 78777566802

Hillman 7/16 in. Diameter x 3-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 25-Pack

Sale price$28.79 Regular price$31.99
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Description

Hillman 7/16 in. Diameter x 3-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 25-PackHillman Grade 5 Hex Head Cap Screws, 7 16" x 3 1 2", 25 Pack Durable grade 5 hex head cap screws for heavy duty fastening in wood or metal. Made of steel with a heat treated zinc finish for added strength and wear resistance, partially threaded for secure clamping. Ideal for applications requiring a hex bolt tightened with a wrench or drill. Key Features: Grade 5 Strength: Heat treated steel provides reliable tensile strength for demanding projects

Hillman Grade 5 Hex Head Cap Screws, 7/16" x 3-1/2", 25-Pack

Durable grade 5 hex head cap screws for heavy-duty fastening in wood or metal. Made of steel with a heat-treated zinc finish for added strength and wear resistance, partially threaded for secure clamping. Ideal for applications requiring a hex bolt tightened with a wrench or drill.


Key Features:

  • Grade 5 Strength: Heat-treated steel provides reliable tensile strength for demanding projects
  • Corrosion-Resistant Finish: Zinc plating helps resist rust and wear in indoor and outdoor environments
  • Washer Face Head: Built-in bearing surface under the hex head for improved sealing and load distribution
  • Partially Threaded Shank: Offers strong clamping force and alignment where a hex bolt is required
  • Convenient Bulk Pack: 25 boxed screws sized 7/16 in. diameter x 3-1/2 in. length

Specifications Table:

Specification Details
Diameter 7/16 inch
Length 3-1/2 inch
Material Steel
Finish Heat Treated Zinc
Grade 5
Head Style Hex head with washer face
Thread Type Coarse (USS)
Threading Partially threaded
Number in Package 25 pack
Packaging Type Boxed
Tightening Method Wrench or drill
Category Hex Bolts
Package Height 3.5 in
Package Width 4.3 in
Package Length 4.3 in
Package Weight 4.3 lbs

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are partially threaded along the shank.


Q: What tools are needed for installation?
A: Tighten with a wrench or a drill using the appropriate hex socket or driver.


Q: What is the material and finish?
A: Steel with a heat-treated zinc finish for enhanced strength and wear resistance.


Q: What thread type do these use?
A: Coarse thread (USS).


Q: Can these be used where a hex bolt is specified?
A: Yes—hex cap screws serve the same purpose and include a washer face under the head.


Industrial polish with purposeful precision

This hex cap screw brings a clean, engineered elegance to exposed hardware moments. The zinc finish offers a subtle shimmer that pairs beautifully with raw woods and painted metals. Use them to anchor custom shelving brackets or a statement door strap for a refined, utilitarian edge. It’s a small detail that elevates everyday fixtures to a more sophisticated, enduring standard.


Secure your project with grade 5 strength—add this 25-pack to your cart and fasten with confidence.

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: 78777566802

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Wendy Arias
Port Orchard, US
★★★★★ 5
Deeply cleans pores, helps reduce acne, and leaves the skin feeling fresh and smooth 💕
Size: 5.5 Ounce (Pack of 1), Size: 5.5 Ounce (Pack of 1)
⭐️⭐️⭐️⭐️⭐️ PanOxyl has really helped improve my skin! It deeply cleans my pores, helps reduce breakouts, and leaves my skin feeling fresh and smooth. I also noticed my acne started calming down after consistent use. Great product for acne-prone skin! 💕
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Reviewed in the United States on May 19, 2026
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Brandi
Battle Creek, US
★★★★★ 5
Omg
Size: 3 Ounce (Pack of 1), Size: 3 Ounce (Pack of 1)
Oh. My. Goodness. I had pretty bad acne. one day at a store I bought a travel size of one of these 10% panoxyl and tried it and omg my pimples are gone. Yes I get the occasional spots but they aren’t as terrible as before. My face is so much clearer and it even cleared a little spot of milia I had for so long! My face feels fresh everytime I use it and looks shiny and healthy. No burning for my face atleast. Doesn’t bleach if you rinse it off well. My routine is face wash, panoxyl, azelaic acid, moisturizer. Pretty simple I don’t follow influencers bc they make you buy all this junk products you don’t need for your face and for me less is better. The idea is that benzoyl peroxide essentially kills the bacteria that causes acne on your face. It works so well. I would recommend if you’re gonna use this to patch test on a part of skin near your face could be your temple area by your ear but it’s so important so you don’t end up with burning skin if your sensitive. But otherwise it’s so great and I love it I use it everyday with occasional 1-2 day breaks cleared my acne and now my face is getting more clear! So happy I got this.
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Reviewed in the United States on April 27, 2026
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Kaela Gartrell
Dallas, US
★★★★★ 5
An Absolute NEED In My Skincare Routine!!
Pattern Name: 50 count (1 pack of 50 ct), Pattern Name: 50 count (1 pack of 50 ct)
These are an absolute need in my skincare routine! I use them to remove oil-based and water-based cleansers and to remove masks. And I use them to dry my face and then to dry my hands in between products. They are very good quality and very soft. They are also thick and very durable. They have a smoother side and a textured side for very gentle exfoliation. I notice my face is more clear from using these as opposed to my microfiber washcloths. They’re fragrance-free and don’t really have a scent, maybe a very light, practically unnoticeable, bamboo scent. I think it’s a very good deal to get 50 XL disposable face towels for $17. I was using these for months and then didn’t use them for a few months and yeah huge difference in my skin, which is why I bought them again and will continue to. It’s also great not having to wash them lol! I also love the new magnetic lid closure and the new design of the box, you can now have your face towels fully covered and sealed without having to buy a separate box with lid to put them in. Although their prism holographic box is so cute and pretty, and their prism box is $20 cheaper on Amazon!
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Reviewed in the United States on February 12, 2026
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BLAIR T
Pawtucket, US
★★★★★ 5
Great quality face cloths with a soft exfoliating texture to them.
Pattern Name: 50 count (1 pack of 50 ct)
Absolutely love these towels. So nice to have a clean towel every time you wash your face. They are the perfect texture for lightly exfoliating. These are just dry towels so you can use your own face wash with them. They are very durable. I tried ripping one in half once and was unable to. They are quite large and I have found that I can have twice as many by cutting them in half. They are still a great size after cutting them. I can definitely see why they are so highly rated. I definitely wasn't holding my breath with high hopes but after using them I am pleasantly surprised! They are quite reasonably priced especially if you cut them in half and if you subscribe to them for additional savings. Very surprised how much I love them!
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Reviewed in the United States on May 14, 2026
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Ava Rae
Cuba, US
★★★★★ 5
SOOOO GOOD
Pattern Name: 50 count (1 pack of 50 ct)
I finally caved and bought these. I wish I would have hoped on this trend when it was first talked about in the skincare community because they are SO good, soft but also exfoliating, no scent, perfect for your face or anything else you want to clean. I did get the XL size without noticing but I’ll be buying these regularly. It makes doing my skincare at night so much easier.
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Reviewed in the United States on April 29, 2026

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