TYPES OF BOLTS AND NUTS

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TYPES OF BOLTS AND NUTS

nut is a type of fastener with a threaded hole. Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together. The two partners are kept together by a combination of their threads’ friction (with slight elastic deformation), a slight stretching of the bolt, and compression of the parts to be held together.

CLASSIFICATION OF NUTS

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HEX NUT – The most common hexagonal fastener with internal threads that screws on to the shank of a bolt or a hex cap screw.

 

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MACHINE SCREW NUT – Machine screw nuts are designed to mate machine with screws, screws commonly used in metal fastening.

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Nylon Insert Lock – A nut with a nylon insertto prevent backing off.
Also referred to as a Nylock

 

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JAM – a hex nut with reduced height

 

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Nylon Insert Jam Lock – A nylock nut with a reduced height

 

 

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Wing – A nut with ‘wings’ for hand tightening.

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Cap – A nut with a domed top over the end of the fastener.

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SQUARE – A four sided nut.

bolt is a form of threaded fastener with an external male thread. Bolts are thus closely related to, and often confused with, screws.

CLASSIFICATION OF BOLTS

Flange Bolt

FLANGE BOLTS Flange bolts have a flange on the bottom of the head that distributes the load like a washer.

 

Socket Head

SOCKET SCREWS – Socket screws, also known as Allen head are fastened with a hex Allen wrench

Shoulder Eye Bolt

EYE BOLTS – A bolt with a circular ring on the head end. Used for attaching rope or chain.

Hex bolt

HEX BOLTS – Bolts with a hexagonal head with threads for use with a nut or tapped hole.

Carriage bolt

CARRIAGE BOLTS – Bolts with a smooth rounded head that has a small square section underneath.

Lag bolt

LAG BOLTS – Bolts with a wood threadand pointed tip. Abbreviated Lag.

Hanger Bolt

SHOULDER BOLTS – Shoulder bolts (also known as stripper bolts) are used to create a pivot point.

Hanger Bolt

ELEVATOR BOLTS – Elevator bolts are often used in conveyor systems. They have a large, flat head.

Hanger Bolt

HANGER BOLTS – Hanger bolts have wood thread on one end and machine thread on the other end.

 

 

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