SKU: 10051929201

Hillman 3/8 in. Diameter x 4-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-Pack

Sale price$55.79 Regular price$61.99
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Hillman 3/8 in. Diameter x 4-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-PackHillman Grade 5 Hex Head Cap Screws, 3 8" x 4 1 2", 50 Pack Durable grade 5 hex head cap screws made from steel with a heat treated zinc finish for added strength and corrosion resistance. Partially threaded with a washer face under the head for a secure seal, ideal for general construction and machinery fastening. Designed for use with a nut or tapped hole and tightened with a wrench or drill. Key Features: Grade 5 Strength: Heat treated steel

Hillman Grade 5 Hex Head Cap Screws, 3/8" x 4-1/2", 50-Pack

Durable grade 5 hex head cap screws made from steel with a heat-treated zinc finish for added strength and corrosion resistance. Partially threaded with a washer face under the head for a secure seal, ideal for general construction and machinery fastening. Designed for use with a nut or tapped hole and tightened with a wrench or drill.


Key Features:

  • Grade 5 Strength: Heat-treated steel provides reliable tensile strength for demanding applications
  • Corrosion-Resistant Finish: Zinc coating helps protect against rust and wear
  • Secure Seating: Washer face under the head delivers a better seal and load distribution
  • Partially Threaded Shank: Enhances alignment and clamping force in assemblies
  • Versatile Fastening: Use with nuts or tapped holes; compatible with wrench or drill tightening

Specifications Table:

Specification Details
Diameter 3/8 inch
Length 4-1/2 inch
Material Steel
Finish Heat Treated Zinc
Grade Grade 5
Head Type Hex head with washer face
Thread Type Coarse
Threading Partially threaded along shank
Number in Package 50 pack
Packaging Type Boxed
Use For use with a nut or tapped hole; tighten with wrench or drill

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are partially threaded along the shank for improved clamping and alignment.


Q: What thread type do these screws use?
A: They use coarse threads suitable for general-purpose fastening.


Q: Can I use these outdoors?
A: Yes. The zinc finish offers corrosion resistance; for highly corrosive environments consider stainless or hot-dipped galvanized options.


Q: Do they include nuts or washers?
A: No. This pack contains only hex head cap screws; nuts and washers are sold separately.


Q: What tool is recommended for installation?
A: Tighten with a wrench or compatible driver bit on a drill.


Sleek, Industrial Fasteners with Enduring Strength

These hex head cap screws bring a refined, utilitarian clarity to hardware details, marrying clean geometry with a polished zinc sheen. The partially threaded shank and washer-faced head deliver a tailored fit that feels intentionally engineered. Style them with matte black brackets or brushed steel accents to echo their quiet sophistication. A dependable essential that elevates the craft and longevity of any build.


Secure your project with trusted strength—add this 50-pack of Hillman grade 5 hex cap screws 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: 10051929201

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 1001 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Joelia
Draper, US
★★★★★ 5
Love
Color: White/All Season, Size: Queen
Very good comforter, soft and comfortable. It is warm but lightweight, and it feels high quality. The cotton fabric is nice and doesn’t cause allergies. Perfect for a good night’s sleep. I recommend it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
A
Verified Purchase
Amarity Bequer
Natrona Heights, US
★★★★★ 4
High quality, but it makes a sound like crinkling.
Color: White/All Season, Size: Queen
I enjoy the warmth of this comforter. Yet very lightweight. It is not as big and fluffed up as the first photo. It does feel like hotel softness and has loops for a duvet cover. The only thing I don't like is the sound it makes. It crinkles when you move it around. If it made no sound I would rate 5 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
C
Verified Purchase
Cari
Battle Creek, US
★★★★★ 5
Hotel-like comfort at home
Color: White/All Season, Size: King
This Serta duvet has surprised me very positively. Since I took it out of the packaging it feels of good quality, with a soft and pleasant to the touch cotton fabric. The King size (106 x 90 inches) perfectly covers the bed and falls very well on the sides, which gives it an elegant look. I like that it is of medium warmth, because it works well throughout the year without feeling too heavy or too light. Another point in favor is that it is hypoallergenic, something important if you are sensitive to dust or certain materials. So far it has maintained its shape well and has not been lagged. In general, it is a very good option if you are looking for a comfortable duvet, with the appearance of a hotel and that you can use in any season.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
Y
Verified Purchase
Yeni Pazo
Dallas, US
★★★★★ 5
Hotel-Quality Softness and Perfect Comfort.
Color: White/All Season, Size: King, Color: White/All Season, Size: King
Excellent quality! Super soft, comfortable, and with the perfect weight to sleep cool yet cozy at the same time. The King size fits perfectly and feels like a luxury hotel comforter. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
B
Book fanatic
Los Angeles, US
★★★★★ 5
Adds comfort and support
Color: Green, Size: Twin
I’ve been using this bamboo mattress topper for a couple of weeks now, and it completely changed the feel of my bed. My mattress was starting to feel too firm and uncomfortable, especially on my lower back and shoulders, but this topper added the perfect amount of cushioning without making the bed feel overly soft or saggy. The cooling effect was one of the biggest surprises. I tend to sleep hot and usually wake up sweating during the night, but the bamboo-derived fabric feels breathable and much cooler than regular mattress pads I’ve owned before. It stays comfortable throughout the night and doesn’t trap heat like memory foam toppers sometimes do. I also really appreciate the waterproof protection. It gives peace of mind without feeling stiff or making that annoying crinkling noise some waterproof covers have. The surface still feels soft, plush, and smooth. It honestly feels more like a hotel-style pillow top than a basic mattress pad. The thickness is just right for pressure relief. It helped reduce the soreness I usually wake up with in my back, and I’ve been sleeping much more comfortably overall. The deep pockets also held securely on my twin mattress and didn’t slide around, even after moving a lot during sleep. Another thing I liked was how fluffy and well-made it looked right out of the package. After letting it expand for a bit, it became nicely plush and evenly padded. The stitching seems durable, and it still looks great after washing. If you’re looking for a softer, cooler sleeping surface with added waterproof protection and better support for aches and pains, this mattress topper is definitely worth it. It made my bed feel newer and far more comfortable without needing to buy a whole new mattress.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026

recommand products