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5/16-18 x 1' (15 PCS) Flanged Hex Head Bolts, Flange Washer Head Hexagon Screws, 18-8 Stainless Steel (304), Plain Finish, Full Thread

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$8.99

$ 4 .99 $4.99

In Stock

About this item

  • Thread Size: 5/16"-18, Length: 1", Flange Diameter: 0.66" (16.9mm), Head Height: 0.31" (8mm), Color: Silver.
  • Package Quantity: 15 PCS 5/16-18 x 1" Flanged Hex Head Bolts to meet your daily needs.
  • High Quality Stainless: Made of high quality Stainless Steel 304, which provides high corrosion resistance and anti-rust effect, long service life, high strength, no deformation, more sturdy.
  • Multi-purpose: Widely used in home or office appliance, furniture fasteners, communication equipments, mechanical industry, etc.
  • Feature: The Flange Bolts feature a washer like flange beneath the bolt head which can distribute the clamping load, and offer a protection to the mating surface.


Flanged Hex bolts
Flanged Hex bolts are hexagonal head fasteners with machine threads. They are commonly used for machinery and construction projects because of its sturdy structure.
Flange bolts have a circular flange under the head that acts like a washer to distribute the load, offering protection to the mating surface.
High Quality Material
These Flanged Hex Head bolts are made of 18-8 (304) Stainless Steel which is one of high forms of corrosion resistant metals, making the bolts last longer.
Multi-purpose
Suitable for applications with relatively large locking forces, such as automotive applications, plumbing, widely used in home or office appliance, furniture fasteners, communication equipments, mechanical industry, etc.


Paul Ratzlaff
Reviewed in the United States on February 6, 2025
Replaced Phillips head bolts for storm shutters. Did the trick and easier to zip on and off during installation before a storm.
HeavyHarrison
Reviewed in the United States on February 2, 2025
These bolts are well made and have a taller head for easier socket and box end wrench fitting. They worked quite well for replacing the rusted steel bolts for the mudflaps on a Western Star truck. The threads are accurate cut and smooth. I will buy them again. Good quality, function, and value!
Mikie
Reviewed in the United States on September 18, 2024
Bought these hard to find size that was needed to finish project that I was working on. Items were shipped in 2 days so that made it easy to finish project. Great service from seller.
ToolmanJohn
Reviewed in the United States on November 8, 2024
I had to replace 16 galvanized self threading bolts on a trailer fresh water strap system. After repairing a few stripper holes in the frame with rivnuts insets, I used these flanged stainless bolts and some anti seize as replacements for permanent security and long life. if I have to drop or replace the fresh tank again, it should be easy.
Hernan Acero
Reviewed in the United States on November 14, 2024
Just as described
Shannon G Willer
Reviewed in the United States on November 1, 2024
Good quality hardware at a great price.
james r piscopo
Reviewed in the United States on October 3, 2024
Quality product at an affordable price
Bob M.
Reviewed in the United States on October 19, 2024
Bolts were what was needed to secure some shelving inside a cargo van. Stainless so rusting won't be a problem.