SKU: 31244188240

Hillman 5/16-18 x 3-1/2 in Stainless Steel Hex Head Cap Screw, 50-Pack

Sale price$64.79 Regular price$71.99
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Description

Hillman 5/16-18 x 3-1/2 in Stainless Steel Hex Head Cap Screw, 50-PackStainless Steel Hex Head Cap Screw, 5 16 18 x 3 1 2, 50 Pack Durable 18 8 stainless steel hex head cap screws for high torque fastening in tapped holes or with nuts. Coarse, partially threaded shank with washer face under the head delivers a secure seal and corrosion resistance for indoor outdoor projects. Key Features: Corrosion Resistant Stainless Steel: 18 8 stainless steel for long lasting performance in outdoor and marine environments High Torque

Stainless Steel Hex Head Cap Screw, 5/16-18 x 3-1/2, 50-Pack

Durable 18-8 stainless steel hex head cap screws for high-torque fastening in tapped holes or with nuts. Coarse, partially threaded shank with washer face under the head delivers a secure seal and corrosion resistance for indoor/outdoor projects.


Key Features:

  • Corrosion-Resistant Stainless Steel: 18-8 stainless steel for long-lasting performance in outdoor and marine environments
  • High-Torque Hex Cap Head: Hex head with machine threads supports strong, reliable tightening with a wrench or drill
  • Washer Face Under Head: Built-in washer face helps create a better seal and distribute load
  • Partially Threaded (USS): Coarse threads with a solid shank for strength where shear resistance matters
  • Bulk 50-Pack: Convenient boxed pack for jobs requiring multiple fasteners

Specifications Table:

Specification Details
Brand Hillman
Type Hex head cap screw
Diameter / Thread Pitch 5/16-18
Length 3-1/2 inch
Material 18-8 Stainless Steel
Thread Type Coarse
Thread Coverage Partially threaded (USS)
Head Feature Washer face under head
Finish Stainless steel
Number in Package 50
Packaging Type Boxed
Installation Tighten with wrench or drill
Package Dimensions (HxWxL) 2 in x 3.5 in x 4.5 in
Package Weight 3.3 lb

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are USS partially threaded along the shank with coarse machine threads.


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


Q: Can these be used outdoors?
A: Yes. The 18-8 stainless steel offers enhanced corrosion resistance suitable for outdoor and damp environments.


Q: Do they have a built-in washer?
A: They feature a washer face under the head to improve sealing and load distribution.


Q: What size are these screws?
A: 5/16-18 thread diameter/pitch and 3-1/2 inch length.


Sleek, Industrial Fastening with Enduring Stainless Poise

These stainless hex cap screws bring a crisp, tailored precision to any build, marrying function with a polished industrial aesthetic. The subtle washer face and clean shank lines create a refined detail that elevates cabinetry, fixtures, and custom metalwork. Style them with brushed steel hardware and natural woods for a modern, textural contrast. A staple of luxurious craftsmanship, they deliver performance and poise in equal measure.


Upgrade your project with these corrosion-resistant stainless hex cap screws—order the 50-pack today for dependable, high-torque fastening.

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: 31244188240

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★★★★★ 5
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WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
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yodan2
Draper, US
★★★★★ 5
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This is my first sublimation printer and I am very happy with this printer. The photos that I have printed have been very good quality and vibrant colors and have applied really well to the sublimation blanks I have used. I like that it will self clean the heads as long as the printer power is on. It was important to me to get an actual sublimation printer in order to have the warranty on it. The printer works with the Artspira app. This app is only available on a smart phone or tablet. It is very difficult to design on such a small screen. Brother needs to have a program that will work on a computer to make designing easier. I did gave difficulties getting my phone to connect to the printer after I designed my work on the very small screen. I used the chat feature on the Brother site and they were able to help me get it connected in order to print.
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Reviewed in the United States on January 2, 2024
B
Verified Purchase
Bruce
Draper, US
★★★★★ 5
Printer
Set name: Sublimation Printer
Bought is a Christmas gift. Has not been turned off since. Lol
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Reviewed in the United States on April 29, 2026
M
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Ms.S.Butta
Waukegan, US
★★★★★ 1
NOt good... not great... horrible
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I’m thoroughly disappointed with the Brother Sublimation Printer and would not recommend it. Out of the box, the setup process was more complex than anticipated, with unclear instructions and frequent errors. The print quality was inconsistent, with colors often coming out dull or inaccurate, despite multiple attempts at calibration. I experienced frequent paper jams, which disrupted my workflow and wasted a lot of materials. The printer’s software is buggy and doesn’t integrate well with other design programs, making it frustrating to use. The connectivity options were unreliable, causing frequent disconnections and delays. Additionally, the printer is quite noisy during operation, which can be distracting and bothersome. The build quality feels flimsy and not as durable as I expected. The customer support experience was also poor, with slow response times and unhelpful solutions. I faced issues with ink usage, as the cartridges seemed to run out quickly, leading to higher operational costs. The sublimation prints didn’t have the sharp, vibrant quality I was hoping for, making my final products look less professional. The lack of clear troubleshooting guides added to the frustration. The printer’s design is bulky and takes up more space than I anticipated. Overall, this Brother Sublimation Printer has been a letdown in terms of performance, reliability, and ease of use. I regret investing in this product and would advise looking for alternatives.
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Reviewed in the United States on August 9, 2024
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Roy Adorjan
Waukegan, US
★★★★★ 4
Pretty good for the price.
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So far so good. I have been producing a fair amount of items to date. My only wish was that the colors were more vibrant with this printer and it's ink.
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