Shop Machine Screw Anchors, Concrete masonry anchors, also known as Tapcons, cut threads into concrete, brick or block when installed. Shop our Sheet Metal & Self Drilling Screws, Wood screws are partially threaded with large cutting threads and a smooth shank. Shop Masonry Screws, Plastic toggle anchors are used in hollow wall or cinder block to create a fastening point for sheet metal screws. Bolts in U shape for attaching to pipe or other round surfaces. Understanding the functional varieties of the different types available, including nuts, bolts, and washers, is essential to selecting the appropriate fastener (and fastener supplier) for your project. Their entire length expands in the hole to create a very secure hold. Flat washers are used to distribute loads of threaded bolts, screws and nuts evenly as the fastener is tightened. These fasteners differ primarily in thread specification, length, and head shape, with varying combinations of these characteristics resulting in bolts with different functions. Used for finishing, cup washers are shaped like a cup. Shop All Threaded Rod, Unthreaded rod, also called round rod, is used in framework, shafts, braces, supports and axles. Shop Dowel Pins, Helicoil inserts are precision formed screw thread coils worked into a diamond shape and wound into a spiral coil which is installed into helicoil tapped holes. Fender washers are used to prevent pull-through and provide a greater bearing surface under the fastener. Carriage bolt: Image credit: Bolts 'n Nuts Plus. The following guide outlines a small selection of the types of fasteners available in our total inventory to help you choose the optimal product for your fastening application. Shop Hammer Driven Pin Anchors, Kaptoggle hollow wall anchors are installed through a hole in walls or block. Shop Plastic Toggle Anchors, Sammy Screws are used with threaded rod and save time by drilling into masonry materials. Shop Domed POP Rivets, Closed End Rivets differ from a standard blind pop rivet in that they feature a closed end which creates a watertight seal. Also known as a “coach” bolt, has a domed or countersunk head. Shop Large Flange POP Rivets, Countersunk, also call Flat, POP Rivets, are used to connect two pieces of material in quick, efficient way. Often used with square head bolts, square washers prevent pull through and provide a larger surface area and greater hold than standard round flat washers. A bolt usually has a flat tip and is built to work with a matching nut, and is engineered to be torqued by the nut. Fasteners are available in a wide range of materials and finishes. These nuts are similar to a castle nut but have a lower profile which sometimes makes them a better option. When choosing between hardware washer types, remember to consider both the washer’s applications and the type of nut or other fastener you will be using. Some of the types of bolts that we manufacture at National Bolt & Nut include: Washers are disk-shaped components that provide enhanced control over locking and friction when used with other fasteners. Shop External Tooth Lock Washers, Internal tooth lock washers are used for locking and tension. It is often formed or machined into a machine key, Keystock usually serves as a wedge or locking device in shaft keyways once it has been formed into the proper shape. Shop Stover Nuts, Slotted hex nuts are nuts with portions cut out designed to be used with a cotter ping to create a locking mechanism. Fasteners come in many different forms. At National Bolt & Nut Corporation, we pride ourselves on offering a full range of stock and custom fasteners that provide durability and high performance at competitive prices. Socket set screws are installed in threaded holes or inserts. These anchors are commonly used to create handrails, lighting fixtures and many other fixtures. A machine screw threads into a nut or an insert, but unlike a bolt… Referred to as both bolts and screws. Shop Bowed-E Retaining Rings, External E Radially assembled Rotor Clips or retaining rings are the most popular and widely used style of radial retaining ring. Shop Slotted Hex Nuts, A four-sided nut that may be flat or beveled on top. J-Bolts Shoulder Bolts. Flat washers are used to distribute loads of threaded bolts, screws and nuts evenly as the fastener is tightened. These washers are rings which are split at one point and bent into a helical shape. Available in a variety of drive types and heads, they fit a wide variety of applications. They are commonly used in stacks to increase the load, deflection or both to an assembly depending on the stack. Countersunk flat head screws (common head style) with type H or type Z cross recess — Product grade A — Part 2: Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws This head style allows for a wrench to grip more easily onto the head of the bolt. Used in low-torque applications such as holding a wheel bearing in place. Acorn Nuts Stainless ; Aluminium RivNuts ; Angle Brackets ; Button Head Bolts Stainless ; Countersunk Head Bolts Stainless ; Countersunk Screwcups ; Dzus Fasteners ; Flange Nut Stainless ; Hex Head Bolts … POP Rivets are tubular, comprised of a hat and mandrel; the length of the mandrel is snapped off when installed. Unlike other bolts, which have threading along the outside of a cylindrical shaft, the Chicago bolt … Shop Sammys Screws, Concrete masonry sleeve anchors consist of a threaded stud with an outwardly flared cone-shaped end, with a nut and a washer on the end. Shop Colored Rivets, Multi-grip rivets are often used to substitute conventional rivets where the thickness of installation materials can vary. A bolt with a circular ring on the head end. They have a female threaded portion to accept the threaded rod into it. 1/2 in.-13 x 8 in. Also called one-way nuts, they can only be installed one way and are often used in high temperature application because they are all metal with no nylon insert. Shop Wedge Anchors, Dowel pins are manufactured on pneumatic dowel equipment and come in pre-cut lengths and diameters. Often used with sharp point and self-drilling TEK screws to make a watertight seal around the screw or metal roofing or siding. These washers can be considered lock washers because they add tension and absorb vibration to an assembly. Shop Military Standard Flat Washers, Flat washers in the 900 series are round and thinner than a standard flat washer with a smaller inside and outside diameter. Shop our Acorn Cap Nuts, Used with cotter pins to prevent loosening, a castellated nut, also called a castle or slotted nut, is a not with slots cut into the top. Shop Internal Tooth Lock Washers, NAS washers are round washers with a smaller inner and outer diameter. The term socket head cap screw typically refers to a type of threaded fastener whose head diameter is nominally 1.5 times or more than that of the screw shank diameter. A tri-groove rivet has better strength and holding power than standard pop rivets. Shop Machine Screw Nuts Small Pattern, Also known as a keps nut, a k-nut or a washer nut, a keps-k lock nut has an attached free spinning lock washer. The square section under the head grips into the part being fastened preventing the bolt from turning when the nut is tightened. Made for hollow concrete applications (ex.