Square nut applications:
- Utility industry
- Used as a blind nut for furniture
- Rail channels
- Used as a foundation in metal channels of stainless steel fasteners
What are square nuts?
Square nuts are typically mated with square-headed bolts. Square nuts are used along with flat washers to avoid damage from its sharp edges and increase the strength of the fastener. Square nuts can have standard, fine or coarse threading with platings of zinc yellow, plain, zinc clear, tin and cadmium, among others.
Why use square shaped fasteners?
This principle works well in electronics, where tiny spaces are filled with small square head bolts and square nuts. When your application calls for efficiency and adaptability, consider using a square shaped fastener such as the square nut. Take advantage of these benefits and discover a world beyond the common hex nut.
Why are square nuts better than hex nuts?
Compared to standard hex nuts, square nuts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening (though also greater resistance to tightening). They are also much less likely to become rounded-off after repeated loosening/tightening cycles.
What is the difference between machine screw and regular square nuts?
Machine screw square nuts have flat tops and bottoms—the edges and corners are not chamfered (beveled). Regular square nuts have a flat bottom bearing surface and a crowned washer-faced top. Regular square nuts are often used with square bolts.
What is the purpose of a square nut?
A square nut, or square head nut, is a four-sided nut that is designed for use with a square head bolt and flat washer. Square nuts offer greater surface contact with the part being fastened compared to a standard hex nut, and therefore provide greater resistance to loosening.
Why don't we use square nuts?
They Are Easy to Turn Bolts and nuts are designed with a hexagonal shape because it makes them easy to turn. With six sides, you can turn a fastener just one-sixth of the way to reach the next flat parallel.
Why do lineman use square nuts?
Square nuts have always been considered safest to use by utility linemen because of their large wrenching surface. Regular nuts are used on all types of threaded bolts and insulator pins, while heavy nuts are used exclusively on anchor rods.
Where are square bolts used?
Square head bolts are used in applications where visibility is limited but durable fastening is required. These bolts have large, flat sides and are easy to tighten with a wrench. Square heads are best used in tight or dark spaces where a machinist or fabricator must tighten the bolt blind.
Should lock nuts be reused?
They are able to be reused, but only if the prevailing torque meets certain specifications. Lock Nuts with a Nylon Insert are perhaps the most reliable lock nut, as it is only limited by the temperature of the application it has been used in.
What is the moon shaped nut called?
Cashews. Characteristics: This crescent-shaped South American nut made its way into other cuisines such as Indian and Thai, thanks to Portuguese explorers and traders.
When did they stop making square head bolts?
For both bolts and nuts, heat treating/hardening of the metal was the last step. By the way...that 1949 agreement to standardize nuts and bolts into ISO inch and ISO metric was probably when the square headed bolts/nuts ended production in mass...as it would have required new investments in machinery.
Why do linemen use 3 point?
Offensive and defensive linemen most commonly use the 3 point stance because it allows them to gain more power from their legs, stay low to move in either direction, and also get a quick and explosive start.
What is a square head bolt used for?
Square head machine bolts were the industry standard prior to hex bolts gaining prominence. Square bolts are now most commonly used for aesthetic purposes to provide a rustic look in a new structure or to match existing fasteners in an older structure. Square lag screws are also used for these purposes.
When did nuts go from square to hex?
Hexagonal bolts and nuts became popular during the early 19th century. The hex nut offered more angles for tightening than a square nut, was not as susceptible to 'rounding' as octagonal nuts, and used less material to manufacture.
What are square bolts called?
At one time, square head bolts (aka square bolts) were the industry standard before being replaced by hex head bolts. Now, they are commonly chosen for aesthetic reasons to create a rustic look in new buildings or to match existing fasteners in an old building.
When did hex nuts replace square?
NUTS & BOLTS I believed the square nuts were replaced by the hexagonal about 1900 – Wrong! The hex head was developed as far back as the very early 1830's (James Nasmith) , and the square continued mainly in the production of agricultural implements.
When did hex nuts replace square nuts?
NUTS & BOLTS I believed the square nuts were replaced by the hexagonal about 1900 – Wrong! The hex head was developed as far back as the very early 1830's (James Nasmith) , and the square continued mainly in the production of agricultural implements.
When did they stop making square head bolts?
For both bolts and nuts, heat treating/hardening of the metal was the last step. By the way...that 1949 agreement to standardize nuts and bolts into ISO inch and ISO metric was probably when the square headed bolts/nuts ended production in mass...as it would have required new investments in machinery.
Does it matter which way a nut faces?
0:181:17How to tell which way a lock nut goes on - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo if you look at the lock nut one side has a tapered crown to it and that's the side that goes upMoreSo if you look at the lock nut one side has a tapered crown to it and that's the side that goes up another way you can tell is if you look at one side of the lock nut it looks very round.
What is a square bolt called?
SQUARE NECK BOLTS are also known as square neck carriage bolts. Square neck bolts are mostly used in wood. They are common to have a square or doomed top and a square under the head. The square neck bolt square pulls into the wood as the nut in tightened for a very secure fit.