SKU: 85792511067

Hillman 5/16-18 x 2-1/2 in Stainless Steel Hex Head Cap Screws, 50-Pack

Sale price$48.59 Regular price$53.99
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Description

Hillman 5/16-18 x 2-1/2 in Stainless Steel Hex Head Cap Screws, 50-PackStainless Steel Hex Head Cap Screws, 5 16 18 x 2 1 2 in (50 Pack) Durable 18 8 stainless steel hex cap screws for hightorque fastening in tapped holes or with nuts. Coarse 5 1618 threads and partial shank threading deliver strong hold and corrosion resistance for indoor and outdoor projects. Key Features: Corrosion Resistant: 18 8 stainless steel withstands moisture and the elements High Torque Capability: Hex cap head with machine threads for secure

Stainless Steel Hex Head Cap Screws, 5/16-18 x 2-1/2 in (50-Pack)

Durable 18-8 stainless steel hex cap screws for high‑torque fastening in tapped holes or with nuts. Coarse 5/16‑18 threads and partial shank threading deliver strong hold and corrosion resistance for indoor and outdoor projects.


Key Features:

  • Corrosion Resistant: 18-8 stainless steel withstands moisture and the elements
  • High Torque Capability: Hex cap head with machine threads for secure tightening
  • Better Seal: Washer face under the head helps distribute load and improve sealing
  • Versatile Use: Partially threaded (USS) shank works in tapped holes or with nuts
  • Bulk Value: 50 screws per boxed pack for jobsite or shop needs

Specifications Table:

Specification Details
Diameter/Thread 5/16-18
Length 2-1/2 in
Material 18-8 Stainless Steel
Head Type Hex Cap
Thread Type Coarse
Partial Thread USS style (partially threaded along shank)
Washer Face Under-head washer face for better seal/load distribution
Number in Package 50
Packaging Type Boxed
Tightening Method Use wrench or drill
Unit of Measurement Listed Metric (per Ace data)
Package Dimensions (L x W x H) 4.5 x 3.5 x 2 in
Package Weight 3.3 lb
Brand Hillman

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are USS-style and partially threaded along the shank.


Q: What wrench size should I use?
A: Use a compatible hex wrench/socket sized for 5/16-18 hex cap screws; match to the fastener’s head size used in standard hardware sets.


Q: Will they resist rust outdoors?
A: Yes. The 18-8 stainless steel provides enhanced corrosion resistance suitable for outdoor and damp environments.


Q: Can I use them with power tools?
A: Yes. Tighten with a wrench or drill/driver using the correct socket or bit.


Q: What thread type is this?
A: Coarse thread, 5/16-18.


Polished Utility with Enduring Strength

These stainless hex cap screws bring a clean, refined hardware detail to cabinetry, shelving, and custom fixtures. The crisp hex head and subtle sheen feel purposeful and modern while delivering unwavering strength. Pair them with brushed steel brackets or matte black hardware for a tailored, architectural look. A small but essential element, they elevate everyday installations to a luxe, lasting finish.


Secure your projects with corrosion‑resistant strength—add this 50‑pack of Hillman stainless hex cap screws to your cart now.

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: 85792511067

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Rad V.
Bozeman, US
★★★★★ 4
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I’ve been very happy with this polo shirt. The fabric feels lightweight, soft, and stretchy, making it extremely comfortable to wear throughout the day. The mesh texture provides excellent breathability, and the moisture-wicking material does a great job of keeping you cool and dry in warm weather. The quarter-zip collar gives the shirt a modern, sporty look that stands out from a traditional button polo. It also allows you to unzip it a bit for extra airflow when needed. The fit is true to size with a clean athletic cut that looks sharp without feeling too tight or restrictive. The white color is slightly see-through in bright light, so that’s something to keep in mind. It’s not overly transparent, but it can be noticeable depending on what you wear underneath. One of the things I like most is how versatile this shirt is. It works perfectly for golf, but it also looks great for casual outings, travel, or even business-casual settings. The stretchy material moves comfortably with your body and never feels stiff. The overall quality is very good. The stitching is clean, the zipper feels sturdy, and the shirt has held up well after several washes. It has not shrunk, lost its shape, or shown any fading, which is always a good sign. It also comes out of the wash looking smooth with very few wrinkles, so it’s easy to care for and convenient if you travel often. For the price, this is an excellent value. It offers a great combination of comfort, performance, and style, and it feels like a much more expensive shirt. I would definitely buy more colors.
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Reviewed in the United States on May 12, 2026
D
David M.
Cuba, US
★★★★★ 5
Deep black and crisp white, this collar really pops.
Color: Black, Size: XX-Large, Color: Black, Size: XX-Large
I love this shirt. The fabric is hard to describe, but it’s very comfortable, cool, and soft. If you’re looking for something highly breathable, this is it. The quality is well made, and the zipper is great. I’m not worried about it splitting or the zipper coming off. It’s fantastic, very comfortable, and fits me really well, even though I’m over 6 feet tall. The value for the money is great. I’ve already mentioned how soft it feels, and the appearance is great too. That white collar really pops against the crisp dark black. I know the picture doesn’t capture it well and looks a bit washed out, but in person the black is very black and the white is crisp white, exactly as shown in the listing photos.
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Reviewed in the United States on April 19, 2026
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Dave Drake
Cuba, US
★★★★★ 5
Cost was fair.
Color: Lightblue Polka Dot, Size: X-Large
Exactly what I expected.
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Reviewed in the United States on May 21, 2026
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uncavan
Boise, US
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Color: Lightblue Rhombus, Size: Large
Looks good and fits well.
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Reviewed in the United States on May 2, 2026
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Raymond Sánchez
Battle Creek, US
★★★★★ 5
Great
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Great product
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