conical screw barrel

So, for example, if you're fastening a 1-inch thick piece of timber to a wooden post then you should be looking at embedding 2-inches of the screw into the post. The important thing is to appreciate that not all screws are the same and that using the right screw can mean a secure installation, whilst the wrong screw can mean in an accident waiting to happen. These screws drill their own holes and form their own mating threads ensuring the best fit in a single attempt. Made by a process that ensures a hard exterior whilst retaining a tough, flexible core.g. To the untrained eye, one screw is as good as another, but those with a little more awareness have a better chance of realising that choosing the right screw for a particular job can mean the difference between a project succeeding and failing.

Before you can choose the best screw for a job you should consider the characteristics you desire in a screw such as:

* Does it need to be waterproof to avoid corrosion from moisture? * Does the screw head need to be flush with material once it's screwed into place? * Does the screw need to be protected from vandalism or unauthorised removal? * Is the screw to be used in wood, metal or perhaps plastic? * What length of screw is required?

For different types of material there tends to be a different type of screw. * Floor screws ? these will cope with the issue of different expansion rates so are best used for securing timber or chipboard to steel supports.

All good screw suppliers will be able to advise on the appropriate screws for your task. Take the following as examples:

* Wood screws ? designed to perform best in all types of wood including hardwood, MDF and chipboard.

The industrial and construction sectors have literally hundreds of different types of screws and fasteners to select from; each type suited for a particular usage e. lubricated timber decking screws for quicker driving into outdoor decking, self-drilling screws for the convenience of not having to drill pilot holes and even screws that barrel and screw work specifically with the mechanical properties of plastics.

* Self-drilling screws ? designed for convenience as only a screwdriver is required. Smaller screws have less chance of splitting wood, but if you're using larger screws and/or working near the end of a piece of wood then it's often safer to drill a pilot hole first.

. That means you would require a screw length of 3-inches.

A general conical twin screw barrel rule of thumb for determining an appropriate length of you should look for a screw length that will allow two-thirds of its length to be embedded into the material being fastened to.

* Frame anchor screws ? designed for fixing window and door frames made from PVC-U, wood or aluminium directly to brickwork without the need for plugs or nylon anchors. * Timber decking screws ? specially designed to deal with outdoor conditions with durable, protective coatings

You can also install the Sammy Screw into wood and steel for the floor with the Lagmaster Plus tool. You can see a demo video at www. They come in a variety of lenghts to accomidate any drywall you may have to go through..

One of my favorite Sammy Screws is the Sammy Express. But, time is money, the Sammy Express anchor will save you alot of time. The Sammy Screw threaded rod hanger comes in a variety of different configurations to accomadate most any application. The Sammy Screw has been in use by many contractors for some years now, but still many have not seen the product or the benefit they can offer.

What is a Sammy Screw? A Sammy Screw is basically a screw with a rod coupler attached to it making it a one piece threaded rod hanger. This is basically a lag bolt with the threaded rod hanger or coupler built single screw and barrel on to it. The Lagmaste plus is a extension pole that goes into the end of a cordless drill. They run around $90 but it will save you that over and over again.

To install a Sammy Screw threaded rod hanger, you will need a cordless drill, and a Sammy Screw driver. They will definetely save you time, thus money on any install. The only drawback to the Sammy Express anchor is the cost and the special tool required to install it. As with any type of concrete screw you will need to pre drill the concrete. Most styles are also available in a side winder version.

If you need to fasten to concrete, the CST Sammy Screw threaded rod hanger will work well.com

If you have never tried the Sammy Screw threaed rod anchor, give them a single screw and barrel try.

Most of the Sammy Screws described above are available to accept 1/4" to 1/2" threaded rod. Just insert the Sammy Screw threaed rod hanger with a length of threaded rod attached down the center of the Lagmaster Plus and drill into the ceiling. The Sammy Express anchor acutually collapses behind the metal deck offering tremendous holding power and saving tons of time. These Sammy Screw threaded rod hangers allow you to mount the threaed rod at a 90 degree angle to the anchor. You may want to consider a Lagmater Plus extension pole if you want to install a Sammy Screw into wood or steel from the floor.constructionfastening. The Sammy Express is designed to fasten to the metal roof deck.

If you are hanging threaded rod from a wood beam or joist, the Sammy Screw GST series will work for you. The most common driver does most of the Sammy Screws, however, if you are using a Sammy Screw junior, or a sidewinder, you will need a different driver.

The Sammy Screw DST threaded rod hanger has a self drill screw attached to the threaded rod hanger. If you are using a Sammy Screw for concrete, you will also need a hammer drill bit to pre drill the hole in the concrete. Several different lenghts are available along with different types of tips depending on how thick of metal you would like to fasten to. If you are using the Sammy Express anchor mentioned below, you will need the Sammy XPIT install tool