SKU: 2107990905

Hillman 3/8 in. Dia x 4 in. L Heat-Treated Zinc Steel Hex Head Cap Screw (50-Pack)

Sale price$43.19 Regular price$47.99
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Description

Hillman 3/8 in. Dia x 4 in. L Heat-Treated Zinc Steel Hex Head Cap Screw (50-Pack)Hillman 3 8 in. x 4 in. Zinc Hex Head Cap Screws, 50 Pack Heavy duty Hillman hex head cap screws made of heat treated zinc plated steel for durable fastening. Sized 3 8 in. diameter by 4 in. length with coarse 3 8 16 machine threads, ideal for use with a nut or tapped hole in general construction and repair. Key Features: Durable Construction: Heat treated zinc plated steel resists wear and corrosion High Torque Capability: Hex cap head with machine

Hillman 3/8 in. x 4 in. Zinc Hex Head Cap Screws, 50-Pack

Heavy-duty Hillman hex head cap screws made of heat-treated zinc-plated steel for durable fastening. Sized 3/8 in. diameter by 4 in. length with coarse 3/8-16 machine threads, ideal for use with a nut or tapped hole in general construction and repair.


Key Features:

  • Durable Construction: Heat-treated zinc-plated steel resists wear and corrosion
  • High Torque Capability: Hex cap head with machine threads for strong clamping force
  • General Purpose Use: Grade 5 strength suits a wide range of projects
  • Coarse Thread: 3/8-16 thread for reliable hold in tapped holes or with nuts
  • Bulk Value: Convenient 50-pack for jobsite or shop replenishment

Specifications Table:

Specification Details
Diameter 3/8 in.
Length 4 in.
Thread Size 3/8-16
Thread Type Coarse
Head Type Hex Cap
Material Steel
Finish Zinc
Grade 5
Heat Treated Yes
Pack Quantity 50 count
Nuts Included No
Tightening Method Wrench or drill driver
Category Hex Bolt
Weight 27.26 lb
Package Dimensions 11 in L x 5.85 in W x 9.4 in H

Frequently Asked Questions (FAQ):

Q: Are nuts included?
A: No, nuts are not included and must be purchased separately.


Q: What wrench size is needed?
A: Tighten with a standard wrench or driver sized for a 3/8 in. hex cap screw head.


Q: What is the thread specification?
A: Coarse 3/8-16 machine threads.


Q: What grade are these bolts?
A: Grade 5 for balanced strength and workability.


Q: Where should these be used?
A: Suitable for general fastening into tapped holes or with matching nuts in construction, automotive, and maintenance applications.


Industrial Polish, Purposeful Strength

These zinc-kissed cap screws bring a subtle, silvery sheen that pairs beautifully with raw woods and painted steel. The crisp hex head reads precise and intentional—an elevated detail on open-shelf brackets or custom hardware. Style them with matte black fittings for contrast, or echo their finish with brushed nickel accents. A small component with big impact, they anchor designs with quiet, functional luxury.


Outfit your next project with reliable, Grade 5 strength—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: 2107990905

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4.6 ★★★★★
Based on 16 reviews
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Verified Purchase
Hayden Lauren Bennett
New York, US
★★★★★ 5
Very convenient, soft, comfortable and does its job.
Size: 3 Pairs - Gray, Green, Pink
As a first responder being on your feet consistently in heavy boots really takes a toll. I buy new soles for my boots and noticed the inconsistency balance from heel to toe which caused cracked and dry heels. I was desperate to find an immediate solution and saw these. Received all the socks individually wrapped, I am a size 5 1/2 to 6 in women’s shoes and they fit so snuggly. They are convenient, they fit under my work socks due to them only covering a portion of the foot and heel, the inside where the heel is a soft rubber material that helps keeps it in place, as well as if you use ointment or oils. The socks are soft and very comfortable that at the end of the day you forget you are wearing them. They are also washable both in the washer or hand washed and it doesn’t affect the rubber material. Highly recommend especially after a foot spa day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2025
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 5
Perfect!
Size: 3 Pairs - Gray, Green, Pink
When my heel skin started cracking, I of course found the internet hacks that went along the lines of put some moisturizing something (cream, Vaseline) on your feet and put socks on and go to sleep. Somehow many issues. While putting on the socks, I already wiped off the moisturizer. It feels terrible. My sleeping self hates socks apparently! I always kick them off, the socks are covered in moisturizer, and it’s all over my blanket. Yuck! So when I found these socks I was unsure but willing to try. These are exactly what I needed! They have this gel-y coating inside that does not absorb the moisturizer, so it actually gets absorbed into your skin. They are snug without cutting off circulation, and along with kerasal, my heels are being healed! Could not recommend enough.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2024
J
Verified Purchase
jules
Louisville, US
★★★★★ 4
They keep sheets from getting greasy.
Size: 3 Pairs - Gray
These are good. I like that I can put lotion on my heels when I go to bed and not get my sheets greasy. They do a good job on that and a pretty good job keeping the moisturizer on. Since the toes are open, they aren’t hot. The gel doesn’t seem to do anything, though.
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Reviewed in the United States on January 25, 2026
K
Verified Purchase
Keri
Pawtucket, US
★★★★★ 5
Impressive
Size: 3 Pairs - Gray, Green, Pink
These socks are so cool and I have used them every night for a week and can see a difference. I am using them with the gold bond heel lotion.
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Reviewed in the United States on April 7, 2026
D
Verified Purchase
dipesh patel
Fort Morgan, US
★★★★★ 5
Very comfortable
Size: 3 Pairs - Gray, Green, Pink
This Heel crack socks are a practical and effective solution for managing dry, cracked heels. They offer a combination of comfort, hydration, and support that many users find beneficial. Although they might not be a miracle cure for everyone, their ease of use and noticeable results make them a worthwhile investment for those looking to improve their foot health. If you’re dealing with persistent heel dryness or cracks, giving these socks a try could be a step towards smoother, more comfortable feet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 21, 2024

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