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101017712 - 3/8-16 x 1-1/4 Stainless Steel Hex Bolt

Packaging: 1 of each
$0.69/ea $0.58/1 of each only $0.58/eaSave 16%

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OVERVIEW

Reliable Hardware for Shop Repairs and Fabrication

Every welder knows that a project is only as strong as its weakest link, and often, that link is the hardware holding it all together. The 3/8"-16 x 1-1/4" Stainless Steel 18-8 Bolt is a must-have staple for any fabrication shop, maintenance truck, or welding rig. When you are building custom jigs, repairing a welding cart, or fixing a fume extractor, you need hardware that won't seize up with rust a month down the line. This stainless steel bolt is the answer to those cheap, rusting fasteners that cause headaches during maintenance.

Why choose 18-8 Stainless Steel? In a welding environment, equipment is often exposed to sparks, grinding dust, and moisture. Standard zinc-plated bolts can corrode quickly, especially if the plating is scratched. This solid stainless steel bolt resists rust all the way through. It is perfect for outdoor gates, railings, and marine repairs where the finished product needs to look good and last for years. The 3/8"-16 thread is one of the most common sizes in North America, making this bolt incredibly versatile for a wide range of clamps, fixtures, and machine guards.

The 1-1/4 inch length is a "Goldilocks" size—long enough to pass through two pieces of standard plate or tubing with room for a washer and nut, but not so long that it becomes an obstruction. The coarse thread pitch is rugged and forgiving, allowing you to tighten it down securely even in less-than-perfect conditions. Whether you are replacing a missing bolt on your MIG welder's chassis or fabricating a new heavy-duty workbench, having high-quality stainless hardware on hand saves you a trip to the store and ensures a professional finish.

Don't let rusty bolts ruin the look of your stainless steel fabrication projects. Using carbon steel bolts on stainless material can lead to galvanic corrosion and unsightly rust streaks. Match your materials correctly by using this 18-8 stainless bolt for your stainless projects. It is a small detail that speaks volumes about the quality of your work. Keep a box of these in your shop to handle unexpected repairs and assembly tasks with confidence.

Additional Information
Brand:Generic
Item:Miscellaneous
Packaging Description:1 per each
Material:18-8 Stainless Steel
Thread Size:3/8"-16
Length:1.25 in
Thread Type:UNC (Coarse)
Head Style:Hex Head

INCLUDED

  • 1x 3/8"-16 x 1-1/4" Stainless Steel 18-8 Cap Screw

APPLICATIONS

  • General machine repair and maintenance
  • Outdoor fabrication and construction
  • Marine and boating equipment assembly
  • Food processing and chemical plant machinery
  • Welding jig and fixture construction
  • Automotive and heavy equipment repair

FAQ

18-8 refers to the composition of the stainless steel, containing approximately 18% chromium and 8% nickel. This is the most common grade of stainless steel (often equivalent to 304) and offers excellent corrosion resistance.

This bolt has a thread pitch of 16 threads per inch (TPI), which is the standard coarse thread (UNC) for a 3/8-inch diameter fastener.

18-8 stainless steel is generally non-magnetic in its annealed state, but it can become slightly magnetic after cold working or machining. However, it is much less magnetic than carbon steel.

18-8 stainless steel has a tensile strength comparable to Grade 2 or Grade 5 steel bolts (approx. 70,000-100,000 psi). For critical high-stress structural applications requiring Grade 8 strength, a different alloy might be required.

No, 18-8 stainless steel is designed specifically to resist rust and corrosion in outdoor environments, making it an excellent choice for exterior projects.

For a standard 3/8" hex cap screw, you typically need a 9/16" wrench or socket.

Yes, 18-8 stainless steel is widely used in marine environments due to its resistance to saltwater corrosion, although Type 316 stainless is sometimes preferred for submerged applications.