Single Expansion Shields anchors, Double Expansion Shields anchors

The term expansion shield is used to describe a masonry anchor that requires the use of a bolt, lag screw or setting tool to expand the anchor once it is placed in a hole in the base material.   Other than epoxy type and concrete screws, all other concrete fasteners use expansion as a means by which their holding values are derived.  Different types of expansion shields have been developed over the years and all continue to have features and benefits that meet today’s application requirements.

Here is a listing of the different expansion shields’ features and benefits with links to both the technical information and product information.

Single ExpansionShields

Can be used for fastening into rock, concrete, brick, etc. If bolt is removed and replaced, holding power is unaffected. One-piece design, made of zinc alloy, is entirely rust-proof.

Double ExpansionShields

Can be used for fastening into rock, concrete, brick, etc. Eliminates high stress points detrimental in fastening into materials of medium hardness, expands fully and has high gripping power. Ideal for shear loads or where bolt is subject to side pressure or vibration. Does not fracture, and permits fastenings at any length.

Single Expansion Shields anchors, Double Expansion Shields anchors

Stainless Steel Carriage Bolts, Carriage Bolts, Bolts

Carriage bolts are pushed into a hole the same size as the shank and then hammered in the rest of the way, where the square shoulder locks it firmly in place. Used whenever a smooth finish surface is needed so that nothing becomes snagged on the fastener. Stainless Steel material. Grade 18-8 has the same design advantages as a low carbon bolt, however can be used in environments that require greater atmospheric corrosion resistance. Stainless Steel Carriage Bolts, Carriage Bolts, Bolts

Blades Cutting Tools, Cutting Tools

A blade is that portion of a tool, weapon, or machine with an edge that is designed to cut and/or puncture, stab, slash, chop, slice, thrust, or scrape surfaces or materials. A blade may be made from a flaking stone, such as flint, metal (usually steel), ceramic, or other material.

A fresh utility blade from Widespreadind.com helps keep your utility knife operating at peak performance and can be great for factory and warehouse work. Utility blades can cut drywall, fiberglass insulation, linoleum floor and roofing material with ease. The utility knife blade and heavy-duty blade models are easy to replace, so you can always have a sharp edge to help open boxes and packages fast. Rely on Grainger for heavy-duty blades, utility blades and other cutting tools.
Blades Cutting Tools, Cutting Tools

Phillips Bugle Head Drywall Screws, Phillips Modified Truss Round Washer Head Drywall Screws

We stock Drywall Screws including Phillips Bugle Head Drywall Screws, Phillips Modified Truss Round Washer Head Drywall Screws, and Trim Head Drywall Screws.  We stock Drywall Screws in Coarse Thread and Fine Thread, with a black finish and dacrotized or dacro finish, and with self drilling, sharp, and self piercing point. Phillips Bugle Head Drywall Screws, Phillips Modified Truss Round Washer Head Drywall Screws

Electrical Connectors Supplies, Connectors Supplies

Every job has electrical and wire needs. Electricians and contractors need to use wire connectors constantly, whether it's just a matter of rigging a temporary power supply for a piece of equipment or rewiring a building. Some jobs require specific connectors or color-coded pin terminals. No matter what the electrical project is or what type of connector is needed, Grainger has the supplies it takes to get the job done. Electrical Connectors Supplies, Connectors Supplies

Serrated Flange Bolts

Serrated hex flange bolts have a ridge or skirt (flange) around the bolt head that distributes the clamping load when the bolt is tightened. The flange works like a washer. Flange bolts are sometimes called frame bolts.
Armed with teeth-like serrations, serrated flange bolts are one-piece bolts bite into surfaces to resist vibration. This bolt is identifiable by the ridge or surrounding the bolt head, this built-in washer under the head of the Bolt acts to distribute the clamping load over a greater area. A flange bolt is designed to provide the same holding power as a washer.

This bolt is identifiable by the ridge of the bolt head. The built-in washer under the head of the bolt acts to distribute the clamping load over a greater area. A flange bolt is designed to provide the same holding power as a washer. It is available in Hex Head and Hex Head Serrated styles. Serrated Flange Bolts

Grade 5 UNC screws, Grade 5 UNF screws

The Unified Thread Standard (UTS) defines a standard thread form and series—along with allowances, tolerances, and designations—for screw threads commonly used in the United States and Canada. It has the same 60° profile as the ISO metric screw thread, but the characteristic dimensions of each UTS thread (outer diameter and pitch) were chosen as an inch fraction rather than a millimeter value. The UTS is currently controlled by ASME/ANSI in the United States.

Grade 5 UNC screws, Grade 5 UNF screws

Stainless Steel Lag Bolts, Steel Lag Bolts, Lag Bolts

Lag bolts are large wood screws with hexagonal heads often called a lag screw. Lag Screws, sometimes called lag bolts, have a hex head, gimlet or cone point and a thin, sharp, coarse pitched thread. They are designed for insertion into wood and produce their own mating thread. Threading is usually 60% to 67% of the length. Available in both 18-8 and type 316 stainless steel. Stainless Steel Lag Bolts, Steel Lag Bolts, Lag Bolts

Oval Head Machine Screws, Machine Screws

Oval head machine screw length is measured from the outside edge the head to the end of the screw. Machine screws are fasteners used to secure metal parts together. Often used with nuts, they are available in short shaft lengths, and commonly have blunt ends that can be driven into tapped or predrilled holes. Machine screws can have various head styles, such as round, pin, fillister, or flat. Common drive styles are external head, Phillips, slotted, star, and combination Phillips-slotted. They can have right or left-hand threads. They come in steel, stainless steel, nylon, brass, and other materials. Machine screws can meet standards such as American Society of Mechanical Engineers (ASME) B18.6.3or Deutsches Institut für Normung (DIN) 7985. Oval Head Machine Screws, Machine Screws

Brass Pipe Fittings, Pipe Fittings

Use tough brass pipe fittings from Widespreadind to connect, control or adapt the flow of air, gas or liquid through brass, copper and iron pipes. Brass fittings can provide strength, durability and resistance to corrosion from water, heat, acids, minerals and peaty soils. Brass pipe fittings can be used for industrial and residential plumbing applications. Shop here for elbows, nipples, tees, bushings, couplings, plugs and more in a wide range of pipe sizes.

All pipe fitting threads are made to Dryseal standards.* Connectors, unions, nuts and extruded elbows and tees are machined from CA 360 and CA 345 brass; forged elbows and tees are machined from CA 377 brass. Brass Pipe Fittings, Pipe Fittings