Category: Home Improvements and Repairs
Estimate Painting Jobs
| January 26, 2012 | Posted by admin under Home & Garden, Home Improvements and Repairs, Painting and Other Finishes |
A person who is in charge of a painting crew must know how to estimate painting jobs. Clients want to know what they can expect to pay for any residential or commercial painting project. A painting job quote is generally based on what it will cost a contractor for materials, plus time billed at various… more
Make a Door
| June 13, 2011 | Posted by admin under Doors and Windows, Home & Garden, Home Improvements and Repairs |
A door serves to block an opening between 2 spaces. It is generally a simple, flat board that is attached by hinges to a coinciding vertical surface in a way that allows for it to swing open and shut, either opening access or blocking access to an adjoining area. There are many sizes and styles… more
Fix a Leaking Roof
| June 13, 2011 | Posted by admin under Exterior Walls and Roof, Home & Garden, Home Improvements and Repairs |
How to repair a leaking roof. Steps Your first step is to call roofers. You need to ask them specific questions. How much time will it take to fix the leaking problem. How many men will they bring to do the job. How much will they charge for the job. You need to know these… more

Stripping the threads on a screw or machine bolt may seem like the end of that piece of equipment, but the problem can be repaired without too much trouble. What we are going to do is increase the size of the threaded hole by 1/16″ in diameter. In this article, we will assume that the original bolt was 1/4″ x 20 x 1″. Check the “Things You’ll Need” section below for necessary tools and parts for replacing the threaded hole and bolt with a 5/16″ x 24 x 1″.
Steps
- Place the part or equipment containing the internal thread in a vise, or clamp it to a table.
- Insert the 1/4″ bit in the drill and drill down the internal thread parallel with the original hole.
- Clean out any shavings with a vacuum, or turn it upside down and tap out the debris.
- Place the tap in the tap wrench and oil the cutting part of the tap.
- Keeping the tap parallel to the hole, press slightly downward and rotate the tap. The tap is usually tapered so that it will go into the hole before it starts to bite into the metal sides of the hole.
- Once the tap is biting into the metal, release the downward pressure and let the tap direct itself down.
- Every two or three turns, reverse the tap to remove shavings, and add some oil.
- When the thread is completed to the desired depth, clean out the hole and test the new bolt.
Video
Tips
- It is important to keep the drill and the tap parallel to the existing hole.
- Make sure the tap’s threads per inch is the same as the replacement bolt or screw.
- If you can’t use a larger bolt to replace the original you can use a screw thread insert repair kit.
Warnings
- If the object you are repairing is a motor or complicated equipment, you should mask off any areas that might catch metal debris from the drilling or tapping.
Things You’ll Need
Related Hows
Sources and Citations
- Use this table for other tap sizes.
- Visit this thread pitch chart to view and download cap screw thread pitches.
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