Step Bolts are hot-dip galvanized to add a zinc coating that protects against corrosion in the field. Designed with a large head at the end of the step bolt to prevent foot slippage, which meets or exceeds OSHA standard 1910.24(a)(2). Has a 5” clear width, which exceeds OSHA standard 1910.24(a)(4).
How wide are manhole steps?
Designed to be installed into green, dry-cast concrete with no preformed holes
- No-Slip tread surface on both sides of step.
- 10-3/8″ tread width.
- 10″ c-c leg measure.
- 3-5/16″ embedment depth.
What is the maximum horizontal separation between step bolts?
Spaced not less than 10 inches and not more than 14 inches apart. Minimum clear width of 11.5 inches on portable ladders and 16 inches for fixed ladders. Manhole entry ladders rungs and steps supported by the manhole opening must have a minimum clear width of nine inches.
What are step bolts used for?
Step bolts are literally used as steps on steel communication and electrical transmission towers. These bolts are generally provided with two A194 grade 2H heavy hex nuts. One nut is tightened against the thread run out. The unthreaded shank, or step length, typically ranges from 6″ to 10″.
What does OSHA consider a platform?
Platform means a walking-working surface that is elevated above the surrounding area. Portable ladder means a ladder that can readily be moved or carried, and usually consists of side rails joined at intervals by steps, rungs, or cleats.
Are steps required in manholes?
Appurtenances penetrating the manhole walls are forbidden, thus the requirements for at least 3-inch embedment for individual steps as specified in the proposed standard are reasonable.
What is a manhole step?
manhole steps are manufactured from tough copolymer polypropylene plastic reinforced by steel rebar and are designed and manufactured to deliver maximum product safety and longevity in the harshest of onsite conditions. … The result of this is we offer two levels of optional reinforcement.
How far apart are ladder rungs?
It has been determined that you are meeting the intent of the standard which is to provide a uniform clear distance of 12″ equally spaced between rungs of your ladders on the described project.
Does OSHA require ladders to be tied off?
The quick answer is no, but let me explain why. The OSHA standard for construction (29 CFR 1926.501) requires workers to use fall protection with an unprotected edge that is 6 feet above a lower level. … Neither standard requires fall protection for workers on portable ladders.
Do you need a harness on a ladder?
Portable ladders: fall protection is not required for employees climbing or working on portable ladders. Neither the ladder standard (29 CFR 1926, subpart X) nor the fall protection standard (29 CFR 1926, subpart M) requires fall protection for workers while working on portable ladders.
Are dock plates required by OSHA?
2. OSHA Approved Dock Barriers. … According to OSHA standard 29 CFR 1910.28(b)(1)(i), a dock that creates a drop of four feet or more must be guarded with a barrier. Chains are one-way employers can create a barrier, but bars are often recommended.
Why is it called an elevator bolt?
Elevator bolts are threaded fasteners consisting of a threaded shank — typically only partially threaded — as well as a thin and round head. They are known as “elevator bolts” because they were originally used in elevator systems. With a thin head, they don’t interfere in the operations of elevators.
How wide should OSHA walkway be?
A minimum width of 18 inches is acceptable for a walkway used for maintenance and gaining access to equipment and would comply with the intent of Section 1910.37, OSHA General Industry Standards.
What is the minimum width of a working platform?
It is recommended that the width of a working platform shall be a minimum of 600 millimetres wide and a scaffold which is used for the deposit of materials shall be a minimum of 800 millimetres wide. A scaffold used for the support of a higher platform should be at least 1.05 metres wide.
How high can a platform be without a step OSHA?
Vertical clearance above any stair tread to any overhead obstruction is at least 6 feet, 8 inches (203 cm), as measured from the leading edge of the tread.