alexandra
12.06.2021 14:40:49
Feel free to let me have more details on the job!
Thanks for looking in Bob,
Cheers
Ian [links]
See full version: Screws Explained
Feel free to let me have more details on the job!
Thanks for looking in Bob,
Cheers
Ian [links]
Usually most bolts are too big for the ‘standard’ or common brown 7mm plugs. Dishes we’ve done in the past used a blue plug in a 10mm hole (if it’s the 50mm or so, bolts I have in mind)
Hi Ian We’ve just fitted new doors and lever on rose handles. Unfortunately the joiner decided not to use the screws supplied – don’t know why! (He didn’t use the through bolts either but that’s another story) The result is the diameter of the head is slightly too wide for the countersink in the handle and the covering rose plate doesn’t screw fully home.
I have spoken to the handle manufacturer and they don’t supply screws by themselves – why not?? They could only tell me that the head diameter is 4mm and the length is 20mm. I can’t equate this to your table above.
I’ve spoken to several screw suppliers and they all want to sell me what they have in store but no-one has yet convinced me that what I’ll get will have a 4mm diameter head! I hope you can help. more
4mm in diameter. So, am I right in assuming that the statement above only refers to the screw head not the thread? [links]
Another point is that heavy loads are as much about the substrate as the actual fixing. Old crumbly masonry (for example) or hitting a largely empty (of mortar) cross joint in blockwork (for example), will cause more problems with failure than screw size itself. here
Hmm, you say you just need to get the cover plate back? Would grinding a little off the top of the screw work do you think? It might leave the drive a little small for the screwdriver though… Alternatively, can you increase the countersink a little (without going all the way through!)? more
Featuring a hex head, widely spaced threads and a gimlet point, lag screws are most commonly used in wood or with lag screw shields. Larger diameters generally require pre-drilled pilot holes.
Type 23 - These thread cutting screws feature machine screw threads, a blunt point and a large chip cavity. The cavity allows for clearance of the cut material. here
Type 1 - Generally used in softer metals such as steel sheets, alloy steels, cast iron, brass and plastics. Has machine screw threads. here
Determing the best adhesive for the job with this guide to choosing and using woodworking glues here
Easy board foot calculation Hardwoods sell in grades by the board foot, a basic unit of measurement that equals a 1"-thick board that's 12" wide and 12" long. That's because hardwoods--unlike softwoods-aren't cut and milled as dressed, sized lumber in standard nominal dimensions (2X4, 1X6, 4X4, etc.) to only be cut to length for construction. Instead, mills saw hardwoods into random widths and lengths to best take advantage of the clear wood in a log. Hardwoods do come in nominal thicknesses, such as 1", 1 1 ⁄4 ", etc. (often referred to as four-quarter, five-quarter, and so on), that actually are a bit shy of the stated thickness. Therefore, you'll pay for a 1"-thick measurement but actually be getting about 3 ⁄16 " less. Board widths aren't standardized. Typically, the dealer will "round up"; to the next inch of width and charge you for it. To help you in estimating stock and cost for the projects you want to build, download the chart using the link below that gives you the amount of board feet in a range of common hardwood dimensions you'll likely come across where you shop for wood.
Q: Are the drawings, photos and text all in the same file? A: Yes. The pages that appear on your computer screen are just like those found on the pages of WOOD magazine. Note: The downloadable plan typically uses a few more pages than the magazine. This is because we've enlarged most of the drawings to make them easier to read on your printed out version. [links]
Q: What is Adobe Acrobat Reader? A: Adobe Acrobat Reader is a computer program that reads our chart and allows you to display and print the information on your particular computer. Adobe Acrobat produces a file type (.pdf) that is compatible with most all computer types. You will need to install Adobe Acrobat Reader on your computer to view and print your charts. here
To view the charts on your screen, and print them using your printer, you must have Adobe Acrobat Reader version 4.0 (or greater) installed on your computer. It's free for you to download, and you only have to download it once! For answers to frequently asked questions, see the bottom of this article.
The 3/16” diameter masonry screw requires the use of 5/32” carbide tipped bit for drilling the hole. The 1/4” diameter requires the use of a 3/16” carbide tipped bit. more
All base materials are different, and the masonry screws installed in concrete may act differently than those installed in brick or cinder block. The lead thread of the masonry screw cuts threads into the masonry. This lead thread can wear down, making it difficult or impossible for the screw to reach minimum embedment depths or depths leading up to the maximum embedment depth of 1-3/4”. [links]
Once the hole is drilled, it must be cleaned of all dust and debris. Using a wire brush, vacuum or compressed air will ensure that the hole is clean before installing the masonry screw.
The length of masonry screw must be equal to the thickness of the material being fastened plus a minimum of 1” with a maximum embedment of 1-3/4”. [links]