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WELCOME TO OUR Types of Screw: Where to use different screws PROJECT

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Summary: Information on the different types of screws available and where to use them.

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Fixings fron thesitebox.com

Different types of screw do many different types of job and as with everything else in the Construction Industry and DIY world, the job is much much easier with the right tools, equipment and products. Take a look at our table and click on the type of screw you need to go through and buy them from thesitebox.com. Screwdrivers are below. Screw sizes vary and generally the larger the number the bigger the screw. For example a number 6 screw is much smaller than a number 12 screw. There are many types of fixing for all types of material and circumstances so make sure you get the right one to make the job easy. It is usually much easier to insert screws when you have drilled a pilot hole. This prevents the screw from binding. See how to drill the correct size pilot holes by clicking on the links. Countersinking the screws also makes for a much neater job.

As well as every type of screw thesitebox.com can provide you with all of the other fixings and tools you may need for your project. You can buy safely and get free Buy Safely from thesitebox.comdelivery.

 

 

Substrate/Finish

Type of screw

Reason

Internal

External

Hardwood

Twin thread.

Ease of start up and driving.

Zink plated twinthread

Brass or Black Jappaned screws

Soft Wood

Single thread.

Strength in position
High pull-out retention.

Zink plated countersunk

 

See above

Chipboard

Single thread.

High pull-out retention.

Chipboard Countersunk screws .

Do not use chipboard outside.unless covered

MDF

Single thread with twin thread start.

Twin thread allows ease of start up and single thread provides high pull-out retention.

MDF Countersunk screws .

Do not use MDF outside unless covered.

Wood – Traditional Finish

Single thread

Traditional finish required to product.

Zink or brass roundhead screws

Brass ditto

Masonry

Single thread. Case hardened with groove in thread to allow dust to escape.

Single thread for hold and drive to grind into masonry.

Concrete & Masonry self tapping screws

Frame screws and hammer fixings

Metal

Self tapper

Cut their own thread into metal.

Self Tapping screws

Stainless steel self tappers

Plasterboard

Drywall screws.

Sharp piercing point with twin thread and bugle head for flush finish. Can be collated for speed of insertion.

 

Drywall screws

 

N/A

Floorboards

Twin thread for fast start, single thread for hold, countersunk head.

Ease of start up. High pull-out retention. Minimal splitting Flush finish.

Brass crosshead, countersunk screws

N/A

Decking

Sharp point, single thread with shank and countersunk head.

Pierce surface, strength in position. Minimise jacking up and splitting. Flush finish.

Decking screws

Deckings screws.

Roofing Sheet

Roofing screws.

Self-drilling and self-tapping with rubber bonded washer for weather proofing.

Roofing hook bolts or mushroom bolts or Aluminium nails

Roofing hook bolts or mushroom bolts or Aluminium nail

Fencing and Garden Furniture Marine

Rust resistant
Easy to drive.

Resistant to corrosion. Speedy insertion.

Ulti Mate wood screws

.Ulti Mate wood screws

Never try to use the wrong screw. Not only will it be hard to put in but it may not hold for the job you want to do. For fixing methods to various surfaces, go back to the projects section. Fixing to masonry is a popular task as is fixing to plasterboard.


thesitebox.com


Much more construction information is available in our bookstore. All the tools and fittings you need in the toolstore.





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