BOB R
If a bolt is rated with a tensile strength 10,000 psi and it is tightened to a force of 5,000 psi, how much pressure can tha bolt hold back? Is there a chart or a easy to use definitive guide available?
Answer
All Fateners have a rated Tensil and shear force strength.
The Premium Captive socket head screws have a tensil strength in the order of 80-100,000 psi.
Tightening torgue is critical, both in shear and pulling. A captive design must have a flat washer and a helical lock washer.
See the following link for specifications:
http://www.engineersedge.com/torque.htm
The link has the values of various torques.
I would secure the ASM hanbook or publications from Allen and Unbrako fasterers.
Mav
All Fateners have a rated Tensil and shear force strength.
The Premium Captive socket head screws have a tensil strength in the order of 80-100,000 psi.
Tightening torgue is critical, both in shear and pulling. A captive design must have a flat washer and a helical lock washer.
See the following link for specifications:
http://www.engineersedge.com/torque.htm
The link has the values of various torques.
I would secure the ASM hanbook or publications from Allen and Unbrako fasterers.
Mav
How to clean vinyl siding on my house?
luckylinda
Answer
Cleaning Vinyl
Cleaning vinyl siding is a snap with the right tools. If your siding isn't in need of scrubbing, spraying it with a hose can wash away the dirt and grime that has accumulated throughout the year. If you need a cleaning solvent, some ordinary dish soap or laundry detergent mixed with water will do the trick. Where there are troubled areas, such as mildew, a mild solution of 1 quart of bleach, ¾ gallons of water and a small amount of detergent. Scrub the areas with a soft-bristled, long-handled brush.
If scrubbing with a brush is going to be too much work, you can wash your siding with a power washer, which can be rented at your local home improvement store or other equipment rental business. Most homes can be pressure washed with a 2200 psi or higher washer.
To wash, follow these simple steps:
Turn off all power to the outside lights that may get wet.
Ensure that all your windows are closed and spray away from doors and windows.
If you have shrubbery or flowers below, make sure you cover them with plastic so no cleaning solution drips on them.
Start at the top and work your way down.
Be sure to rinse your cleaning solution off the siding before it dries.
(also see our vinyl siding guide)
Cleaning Vinyl
Cleaning vinyl siding is a snap with the right tools. If your siding isn't in need of scrubbing, spraying it with a hose can wash away the dirt and grime that has accumulated throughout the year. If you need a cleaning solvent, some ordinary dish soap or laundry detergent mixed with water will do the trick. Where there are troubled areas, such as mildew, a mild solution of 1 quart of bleach, ¾ gallons of water and a small amount of detergent. Scrub the areas with a soft-bristled, long-handled brush.
If scrubbing with a brush is going to be too much work, you can wash your siding with a power washer, which can be rented at your local home improvement store or other equipment rental business. Most homes can be pressure washed with a 2200 psi or higher washer.
To wash, follow these simple steps:
Turn off all power to the outside lights that may get wet.
Ensure that all your windows are closed and spray away from doors and windows.
If you have shrubbery or flowers below, make sure you cover them with plastic so no cleaning solution drips on them.
Start at the top and work your way down.
Be sure to rinse your cleaning solution off the siding before it dries.
(also see our vinyl siding guide)
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