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screws

A screw and a bolt (see Differentiation between bolt and screw below) are similar types of fastener typically made of metal and characterized by a helical ridge, called a male thread (external thread). Screws and bolts are used to fasten materials by the engagement of the screw thread with a similar female thread (internal thread) in the matching part.
Screws are often self-threading (also known as self-tapping) where the thread cuts into the material when the screw is turned, creating an internal thread that helps pull fastened materials together and prevents pull-out. There are many screws for a variety of materials; materials commonly fastened by screws include wood, sheet metal, and plastic.

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  1. L

    Replacement Radiator Bleed Valve Grub Screw ( Air / Bleeding)

    Hello everybody, First post for me on the forum! I have old radiators in the house (about 12-15 years). Single flat panel with fins. Writing on radiator: BS 3528 and further on FEK 1 A. Bleed System - The bleed screw, screws directly into the back face of the radiator. Pictures are worth...
  2. R

    Radiator bleed screw

    Hi My radiators were fitted about 15 years ago and have worked fine but recently some part of it were not warning up as they should. Thought that it may have sludge in them so initially I cleared the whole heating system by letting all the water out at the lowest point outside the house (I...
  3. N

    How do you overcome this?

    Been to service a WB 24i junior today - on the underside and sometimes on the top there are tiny little hex type screws to get the case off, I had nothing to get these undone with as they seemed to have been rounded off by however went there last. Obviously I couldnt get the case off and had to...
  4. A

    Best way to fix a rad to a tiled plasterboard wall?

    I go to loads of radiators at work that have fallen off the wall due to the installing thinking it is ok to install a 1100 x 500 double panel radiator with 2 plasterboard fixings per bracket. Anyway, last night I went to my fiance's aunty's house because the radiator was leaking. The rad has a...
  5. G

    common fault

    Over the last three weeks i have come across the same fault on 3 worcester boilers 28 gs i junior. All rougly the same age approx five years old and all have had expansion vessell faults . Now to me this isn't the best of design/engineering by supposedly a leader in the heating industry...
  6. H

    Screws

    Abit of a random thread but just wondered what screws and what sizes most people on here use, there are so many out there im not sure what to stick to.... what would you use for the following wood...... brick....... plasterboard..... just beginning to get my tools and stuff together so when i...
  7. L

    Rehanging radiators

    Sorry if this has been asked before. Why is it when you take off a radiator to decorate and then put them back on they almost always drip. So as i got to remove a radiator as it's moves everytime you touch and also the tail is leaking i was wondering what is the best thing to do when rehanging a...
  8. S

    what screws ??

    hello all just kitting out my van and looking around this site which is giving lots of help so thanks to all for the info you have posted i am poping down to get a load of screws and plugs was thinking of picking up a some mixed packs they sell in screwfix/toolstation but dont want packs in...
  9. O

    anyone seen these tools for removing damaged screws?

    hi all. anyone seen these before, are they worth bothering with? they look good but do they work? Damaged Screw Remover Set - with lifetime guarantee on eBay (end time 24-Nov-10 20:20:33 GMT)
  10. A

    myson rads. bleed screws.

    Anyone know where to get replacements quickly, over zealous customer broken 4 of 7 rads.Its the type thats sit on angle on rear of rad. thanks
  11. P

    BSW sink screws

    I have just replaced the plug wastes in two sinks with new stainless steel items. The new bolts are metric but I need imperial to link up with the lower part of the waste that is embedded in lead piping. Removing the lead and using the new lower end of waste is too much of a mission, and...
    • pburgess000
    • Thread
    • brass find google internet piping plug plumbing screw screws sink stainless
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  12. B

    screws

    Just thought I'd tell everyone, I've been using SPAX screws recently. Bloody great - fast, no need to drill pilot holes (biggest plus ever), great 'bite'. Highly recommended.

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