Nut Categories

Nuts and bolts are among the most expansive categories of hardware. Options run the gamut, with coupling, locking, flanged, hex, square and more. We offer numerous material, finish and size options. When it comes to industrial nuts and bolts, Fastener Superstore has a comprehensive selection for your manufacturing or assembly needs. We provide products in bulk so that your business is stocked with reliable, well made fasteners. When it comes to the hardware you use, it always pays to do business with the best.

Below, find a full listing of the nut categories we carry. Please don't hesitate to contact us with any specific product or pricing questions.

Select a Category Below

  • Acorn / Cap Nuts

    Acorn Nuts

    Used For Decorative & Safety Applications When Mating Threads are Exposed.

  • Cage Nuts

    Cage Nuts

    Free-Floating Square Nuts Inside a Spring Steel Cage. Steel / Zinc & Stainless.

  • Castle Nuts

    Castle Nuts

    Reduced Diameter, Cylindrical Slotted Top Allows for Insertion of Pins.

  • Clinch Nuts

    Clinch Nuts

    Also Called Press In Nuts; Used In Thin Sheet Metal Applications.

  • Conduit Locknuts

    Conduit Locknuts

    Minimal Surface Are with Protruding Lobes Allows For Low Profile & Hand Turning.

  • Coupling Nuts

    Coupling Nuts

    Internal Threads at Both Ends Allows Joining of Studs & Bolts.

  • Finished Hex Nuts

    Finished Hex Nuts

    Most Common & Versatile Style of Hex Nut. US Made Options Available.

  • Flex Locknuts

    Flex Locknuts

    Segmented Collar Creates Prevailing Torque Locking Action When Tightened.

  • Heavy Hex Nuts

    Heavy Hex Nuts

    Thicker & Wider Across The Flats Than Standard Hex Nuts. In Steel, Grade 5, Galvanized & Stainless

  • Hex Flange Locknuts

    Hex Flange Locknuts

    Hex Nut with Extended Flange Bearing Surface -- Many Available with Underside Serrations for Additional Holding Strength.

  • Hex Jam Nuts

    Hex Jam Nuts

    Two-Thirds Thinner than Standard Hex Nuts. Available in multiple materials, including Stainless.

  • KEPS K-Lock Nuts

    Keps Nuts

    Attached Free Spinning Washer Provides Extra Hold -- Standard Keps Nuts have an External Tooth Lockwasher, Conical Keps Nuts have Conical Washers.

  • Left Hand Threaded Hex Nuts

    Left Hand Hex Nuts

    Standard Finished Hex Nuts that Tighten to the Left Side.

  • Machine Screw Nuts

    Machine Screw Nuts

    Thinner than Finished Hex Nuts; Used with Machine Screws. Hex & Square Options in Steel and Stainless Steel.

  • Metric Nuts

    Metric Nuts

    Metric Hex, Flanged, Jam, Keps & Nylon Insert Nuts in a variety of Classes.

  • Nylon Hex Nuts

    Nylon Hex Nuts

    Standard Sized Hex Nuts Which Are Manufactured in 6/6 Nylon.

  • Nylon Insert Locknuts

    Nylon Insert Locknuts

    Nylon Insert at Collar Restricts Movement. Light Hex, Heavy Hex & Metric Options.

  • Panel Nuts

    Panel Nuts

    Used in Switch & Electrical Applications; Offer Smaller Surface Area Than Standard Nuts.

  • Rack Mounting Cage & Clip Nuts

    Rack Mounting Nuts

    Cage & Clip Nuts Used For Rack Mounting. Sizes 10-32, 12-24 & M6 in Steel / Zinc.

  • Rivet Nuts / Threaded Inserts

    Rivet Nuts / Threaded Inserts

    Large Flange, Small Flange & Ribbed Options in Aluminum & Steel / Zinc Yellow. Available in Standard and Metric Threads.

  • Slotted Hex Nuts

    Slotted Hex Nuts

    Slotted Cuts in the Top of the Hex Allow for Insertion of Pins.

  • Square Nuts

    Square Nuts

    Standard & Heavy Styles; Offered in Steel / Zinc, Galvanized & Plain Options.

  • Stover Locknuts

    Stover Locknuts

    All Metal One Piece Locknuts; Controlled Distorted of Top Threads Creates Hold.

  • Structural Nuts

    Structural Nuts

    A194 Grade 2H & A563 Grade DH; For Use with Structural Bolts & Washers.

  • T / Tee Nuts

    Tee Nuts

    Internally Threaded in 3, 4 & 6 Prong Style with Varying Barrel Lengths.

  • Tinnerman Style Nuts

    Tinnerman Style Nuts

    Tinnerman Style Parts: Cage & Clip Nuts, J Type, U Type, Flat Type & Hat Style.

  • Two Way Reversible Locknuts

    Two Way Reversible Locknuts

    Prevailing Torque Type Locknut. Indentations on the Flats Provide Locking Action.

  • Tab Weld Nuts

    Weld Nuts

    Tab Weld Nuts with Single Projection; Multiple Projection & No Projections, also Hex Projection & Round Base Styles

  • Wing Nuts

    Wing Nuts

    Stamped, Cold Forged & Washer Based Styles in Steel / Zinc. Cold Forged also in Stainless and Metric Sizes.

The Benefits of Quality Nuts and Bolts

Builders and contractors understand the importance of reliable hardware down to each individual nut. Whatever your project, it is always smart to use nuts and bolts of the highest quality. Strength and resistance to corrosion matter at every level of your project. From nuts and bolts to rivets and spacers, the right hardware can make all the difference. At Fastener Superstore, we have built our business around offering our customers quality bulk nuts and bolts, and we stand behind the quality of our products.

The Fastener SuperStore Difference

Our customers know that they can trust Fastener Superstore for their hardware and fastener needs. We offer an enormous range of options and are happy to serve as your one-stop shop for fasteners of all kinds, including nuts, bolts, washers, rivets, standoffs and more. As a manufacturer or contractor, you know the difference it makes to have everything you need under one roof for easy ordering and quick turnaround. What exactly makes Fastener Superstore stand out as a leading provider of nuts and bolts?

  • Our warehouse includes more than 34,000 distinct parts to meet your needs
  • We post comprehensive pricing guides online for easy ordering
  • We require no registration to buy our products in bulk, so you can easily get the hardware you need when you need it
  • Most of our orders ship on the day they are ordered
  • Our customers can order however is easiest for them — phone, email, online or fax
  • Our customer service team works extended hours to ensure you get the help you need
  • For larger orders, we are happy to provide you with additional quotes

At Fastener SuperStore, we work hard to give you a unique experience. We work closely with each of our customers to ensure that they have the right hardware for the job, in the right quantities

Contact Us Today!

Our customer service team is standing by to help with your order; and don’t forget to check out our quick and easy online options for ordering and expedited shipping.

Fastener SuperStore has been in business for over a decade, and we have the experience to know what works best. Contact our team today to learn more about what we can do for you.