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Stainless Steel Machine Screws and Bolts | xobba.com

Stainless Steel Machine Screws and Bolts

Buy Stainless Steel Machine Screws Online

Machine screws are one of the most important types of fastener, used for a wide variety of applications, from dentistry to sheet metal work, and electronics to the automotive industry. Stainless steel machine screws and bolts cover a huge range of shapes, styles and sizes, making it easy to find the best type for a particular project. The majority of machine bolts are fabricated from steel or brass, but these are not always suitable, especially where rusting is a prime concern. For this reason, stainless steel machine screws and bolts are an essential addition to the armory.

Machine screws differ from other types in that they require nuts, inserts, or pre-tapped holes, as the lack of a point or taper means that they cannot bite into the substrate and provide grip. They are the perfect choice for soft or brittle materials, where a standard screw cannot find enough purchase to provide a secure grip. Machine screws and bolts are available in a huge range of sizes, from the tiny machine screws used for electronics to the huge bolts needed for plant machinery.

Stainless Steel Machine Screws – The Pros

Stainless steel is extremely resistant to corrosion, which sidesteps the problem of nut and bolt rusting together, making them practically impossible to remove without the aid of chemicals. The alloy contains nickel and chromium, giving corrosion resistance while sacrificing a little strength. Because of this, you should use a slightly longer and thicker bolt for extra strength and load bearing capability.

Stainless Steel Machine Screw

Stainless Steel Grades

Stainless steel machine bolts and screws are often used for precision engineering, so a convention to label the quality of the fasteners is essential. The most commonly used system is the SAE Grade, which allows you to judge the grade and ensure that the bolts are up to the job. For most applications, screws with an SAE rating of 305 or 306 are perfectly adequate; critical applications may require a higher quality, of 316 or higher.   Some manufacturers use a slightly different standard, labeling their stainless steel as 18/4 or 18/10, revealing the percentages of chromium of nickel contained in the alloy.

Machine Screw Sizes

In times gone by, buying stainless steel machine screws and bolts was an easy task; you simply visited your local ironmonger and bought them by the scoop. Sadly, the traditional hardware store is an endangered beast, and the large retailers have moved in, forcing you to buy tiny packages of fasteners with a very high mark-up. If you need to buy machine screws in bulk, looking online is the best way to take advantage of bulk discounts, allowing you to order large volumes relatively cheaply.

A reputable online retailer will offer:

  • Slotted, Torx, Robertson, Phillips, and tamper-resistant drive heads
  • A choice of flat, round, pan, oval, fillister, binding, and truss heads
  • A range of grades, from 305 to the superior quality 316
  • A competitive price
  • Bulk ordering discounts
  • The full range of sizes, from 000 to 14
  • Matching nuts and inserts
  • A selection of screwdrivers

Buying stainless steel machine screws and bolts online is a great way to browse from the comfort of your own home, saving time and money, and keeping the frustration at bay.

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Stainless Steel Phillips Pan Machine Screw Assortment Kit Price: $19.50
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Invincible Marine Stainless Steel Machine Screw Kit, 81-Pieces Price: $14.30
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  • Article by Martyn Shuttleworth

    avatar Martyn Shuttleworth is a professional freelance writer living amongst the olive groves of the Peloponnese, a spear throw away from Ancient Sparta, the home of long-haired heroes. He covers a range of styles, from academic writing to sales letters, and loves writing about home improvement, freelance writing, and all things Greek. If you want to hire a master wordsmith, please feel free to visit Freelance Writer Editor
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