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Fasteners and Hardware
Keeping it all together

Fasteners and Hardware choices are many when considering construction hardware. Stitching light gauge sheet metal together, attaching sheet metal to structural steel.

Attaching sheet metal and other materials to substrates such as plywood, wood studs, brick, concrete masonry units and steel studs to name just a few. Then there is depth and sealing ability to consider. You can bet that there is a screw to suit every purpose you can come up with.

Engineers can calculate how much shear strength and pullout is required for fasteners and hardware but there are tests that can right in the field to be certain that a fastener will hold out under a given load.

Pullout testing involves using a special fixture to see how much force is required to pull out a screw that has been fastened into a substrate. It is especially important when fastening to old existing substrates where the actual strength may not be known.

There are several classes of commonly used fasteners and hardware for these purposes including screws, rivets as well as nuts & bolts.

Tek Screws

There are different types of points such as Type A for drilling into light gauge sheet metal less than .060” thick. The Type B has a more blunted end and is intended for drilling into structural steel up to .200” in thickness. There is also a type AB point which is a type B with a sharper point to help locate the starter hole. For thicker materials a pilot hole and a thread cutting screw should be used.

Tapcons

Tapcon fasteners are used for attaching to concrete or brick and are available in 2 common diameters. The 3/16” diameter Tapcon is supplied with a 5/32” diameter drill bit for installation. The 1/4” diameter Tapcon comes with a 3/16” diameter drill bit. It is important to use these exact drill sizes when drilling holes for Tapcons.

Rivets

Pop rivets blind rivets and more talks about how rivets fasten everything from your screen door handle to heavy panels many stories above the ground.

Nuts & Bolts

Used in sizes above 1/2” diameter. These are heavy duty structural steel bolts with tightly controlled specifications. The heads of the bolts are marked with 3 different grades in order of increasing tensile strength.

Materials for fasteners

Materials for fasteners can be very important. In North America materials have been standardized by the ASTM (American Society for Testing Materials) so that the yield strength is predictable. With screws that are too small to be marked, purchasers can get certificates of conformance and mill test reports to ensure specifications are met on critical applications.

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  • Yuuuuup - Auction Websites in Ontario !

    Perhaps its because of the hit TV series "Storage Wars" going to auctions of all types has become very popular. Both for personal and for business purchases. Visiting auctions can be a great way for a new business to get started. If you are looking for office furniture and factory equipment there are always great bargains to be had.

    Be extremely careful when computers, flat screen TV's and other technology items. You must know the value of these items before bidding. People go crazy about these items and auctioneers know it. In the heat of the moment people often pay more for a used computer that is several years old then they would brand new in a retail store.

    Bear in mind you are buying items as-is where-is and there is always the possibility that the item you are buying wont work or be damaged in some way. Take advantage of the inspection days that most auctioneers provide and factor the risks into the maximum price you are willing to pay for an item. Record this information and have it handy when the auction starts and you go to bid.

    Auctioneers often will refuse to sell an item if it does not draw a high enough price, they will withdraw the item and list it in a future auction where they hope it will gain more more attention. In general it pays to find an item you are interested at an auction where the majority of bidders are not looking for that kind of item. You want to be the only person bidding on it.

    Auctions most often charge a fee over and above what you pay for the item. This is called a “buyers premium” and usually goes to cover the cost of the auctioneers services. You have to factor in this cost. As well, You also have to pay all applicable sales taxes.

    The internet has revolutionized the auction business. Many auction houses use the services of www.bidspotter.com which allow users to view the auction live and bid online without actually being at the auction. This increases the bid frenzy dramatically and drives up profits for the auctioneers. But its great if you want to log on as a guest and get a feel for a live auction and see how the auctioneers work the audience.

    Registering with Bidspotter is simple and is no different than registering for an auction in person. The main difference is that you can bid in auctions across the continent. Just bear in mind that if you win a bid you will have to pay to arrange shipping and delivery to your location if you are unable to pick the item up your self.

    List of auction websites May 2012


    Fair warning !, Auctioneers websites are sometimes not exactly what you would call user friendly. Some like to hide their latest auctions and make it a challenge for you to figure out where they are. You can always throw your hands up in frustration and find the local auction listings in the Toronto Star any Sunday. With dilligence, you can plan out your next auction excursion

    Abco Food Equipment



    This company sells primarily restaurant items and with the frequency that restaurants go bankrupt, its got to be a great business. A great place to find ultra expensive espresso machine you have always wanted. Many auction houses also double as sales outlets for brand new equipment.

    Asset Services, Auction and Appraisals



    Mostly industrial sales of machinery. If you are intimately familiar with the equipment, you can find great bargains if you are willing to tolerate the risks.

    Auction Advertiser



    A directory of mainly estate auctions taking place throughout Ontario. Click on any day in the calendar to find auctions taking place.

    Corporate Assets



    Upcoming auctions are listed in the Toronto Star on Sunday if you get frustrated with their website.

    Danbury Sales



    Up until recently had a retail store location on Lakeshore road in Oakville where you could buy items from their auction sales. Now they seem to have returned to their core business of industrial and commercial auctions.

    Hilco Asset Sales Canada



    URL redirects to Hilco Industrial auction site in the USA which does list auctions in Canada.

    Infinity Assets Solutions



    Mostly company equipment auctions. You can use bidspotter.com to join in the bidding without being there.

    Northern Auction Service Inc.



    Hold regular sales at the sherwood auction sales in Milton, a nice room used by several auction houses where you sit in old church pews while you bid on items. Even if you dont buy anything, the bacon on a bun they serve in the back is worth the trip.

    Principal Liquidators Inc



    Wildly popular auctions every Tuesday in Mississauga go on until Midnight. Principal Liquidations are also well known for their hardwood flooring material auctions.

    Studio 1 Auctions



    Sparse website but do show pictures of upcoming auctions.


    If you have any comments or suggestions for great auctions in Oakville, Burlington and the surrounding area, feel free to post them !

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