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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Port Orchard, US
★★★★★ 4
good for non-white skin
Scent: Fragrance Free, Size: 1.7 Fl Oz (Pack of 1)
Moisturizing, non-sticky, works for my sensitive skin. It's transparent and doesn't leave a white cast on my light brown skin. Smallish size is good for travel and purse. It's a little shiny; wish it came in matte.
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Reviewed in the United States on March 21, 2026
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J-C
Chelsea, US
★★★★★ 5
Very effective
Scent: Fragrance Free, Size: 1.7 Fl Oz (Pack of 1)
I love this sunscreen for your face. It doesn’t feel oily. It doesn’t stay white on your skin. It absorbs and it really protects it nicely. I put it on every morning before I walk my dog in the sun and I’m out for normally at least an hour so it’s a really nice sunscreen and I would definitely give it a try.
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Reviewed in the United States on February 22, 2026
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Kassandra N
Phoenix, US
★★★★★ 5
Lightweight, clean, and effective — worth the repurchase
Scent: White Tea, Size: 1.7 Fl Oz (Pack of 1)
This is my go-to daily sunscreen. It’s lightweight, non-greasy, and absorbs quickly without leaving a white cast. I love that it’s made with clean ingredients and doesn’t irritate my sensitive skin. The white tea scent is subtle and fresh. I’ve repurchased this several times now — it’s one of the few sunscreens I actually enjoy using.
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Reviewed in the United States on June 25, 2025
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Beachreader
Massapequa, US
★★★★★ 5
Great replacement for my discontinued Epionce sunblock
Scent: White Tea, Size: 1.7 Fl Oz (Pack of 1)
I really hate it when companies discontinue great products, and even though it cost a fortune, I loved the Epionce mineral sun block for faces. When I realized it was gone, I looked at the Coola line because I like their other products. Found this face sunblock for $32 (this could be 1/3 of the Epionce, certainly 1/2) and have used it for the past few weeks playing golf. So far, so good! I'm not noticing any color, certainly no burn. No irritation, and the scent is quite mild, only noticeable when it's first applied (IMO, and I'm pretty sensitive to scents). I really like that Coola has the Hawaii reef-safe designation, which I think is very important for all sunscreens, even when we're not going swimming in the ocean. As a friend pointed out to me once, even if you don't swim in the ocean, you go home and take a shower and all those chemicals wash down the drain and make their way eventually through the system, so might as well just not use them in the first place! Yes, it's more expensive using products like this, but IMO it's worth it. I also wear sun sleeves these days so I don't have to use as much sunscreen when I'm out on the golf course. Editing this to say that this product has avobenzone, which is actually not so great and may be banned in Hawaii by next year. Hmm. Guess I'll keep searching!
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Reviewed in the United States on July 7, 2023
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Courtney Cullison
New York, US
★★★★★ 5
Great but expensive
Love it just wish it wasn’t so pricy
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Reviewed in the United States on April 3, 2026

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