Identification Charts for Different Types of Fasteners: Head styles, Bolt and Screw, Drive, Washer and Nut types

A fastener is a hardware device that is used for creating non-permanent joints.
Fasteners can be used to close a box or an envelope container. They may involve keeping together the sides of an opening of flexible material, attaching a lid to a container, etc.

Other alternative methods of joining processes for joining materials include welding, soldering, brazing, crimping, taping, cementing, gluing or the use of additional adhesives. The use of magnetic force or even frictional force can also join materials.

Stainless steel, carbon steel, and alloy steel are the three primary steel fasteners manufactured in industrial fasteners.

With the help of the below charts, you can identify almost any type of Bolt and Screw, different types of Fasteners, Head styles in Fasteners, Drive types in Fasteners, Washer types in Fasteners and Nut types in Fasteners.

Identification chart for different types of fasteners
Identification Chart for Types of Fasteners – Bolt and Screw
Wood Screws, Machine Screws, Thread Cutting Machine Screws, Sheet Metal Screws, Self Drilling SMS, Hex Bolts, Carriage Bolts, Lag Bolts, Socket Screws, Set Screws, Eye Bolts, Eye Lags, J-bolts, U-Bolts, Shoulder Bolts, Elevator Bolts, Sex Bolts, Mating Screws and Hanger Bolts
Identification chart for Fastener Head Styles
Identification chart for Fastener Head Styles
Flat, Oval, Pan, Truss, Round, Hex, Hex Washer, Slotted hex washer, Socket cap and Button Head Styles
Identification chart for Fasteners Drive Types
Identification chart for Fasteners Drive Types
Philips and Fearson, Slotted, Combination, Socket, Hex, One way, Square and Torx Drives
Identification chart for Fasteners Washer Types
Identification chart for Fasteners Washer Types
Flat, Fender, Finishing, Split lock, External tooth lock, Internal tooth lock, Square, Dock, Ogee and Sealing Washers.
Identification Chart for Fastener Nut Types
Identification Chart for Fastener Nut Types
Hex, Heavy hex, Nylon inserted lock, Jam, Nylon inserted jam lock, Wing, Cap, Acorn, Flange, Tee, Square, Prevailing torque lock, K-lock, Coupling, Slotted and Castle Nuts

Fasteners Type Chart PDF (

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Vinodh Reddy is a Mechanical Engineer and Editor-in-chief of ME Mechanical. He holds a Bachelor of Engineering (Honours) degree in Mechanical Engineering. He also blogs at EduGeneral. He is interested in the manufacturing field.

All Comments

  • This is exactly the sheet I have been looking for. I need a list of each different fastener so that I can better organize my garage.

    James Hobusch Oct 9, 2015 8:39 am Reply
  • very usefull to me

    stephen Jun 10, 2016 5:34 pm Reply
  • This is the sheet , which I exactly searching for. Is there any chart of Torque achievable and other factors

    Pradeep Chander R Jul 29, 2016 10:59 am Reply
  • I have a piece of hardware that I’d like to know the proper name for it. It measures 1/4″ in length, has a 1/4″ smooth bored hole through the center, a 7/16″ hex nut on one end (3/32″ thickness), and fine external threads (I don’t know the pitch) on the opposite end. It appears to be an alignment type fitting but I cannot find another one, nor know what to ask for.

    Lindsey Smith Oct 12, 2016 10:23 pm Reply
    • sounds like some sort of threaded locating dowel-type pin. it might be threaded to facilitate removal if it were to say be pressed into a blind hole location.

      Jaime Mar 26, 2017 6:54 am Reply
  • I need a list of topics in briefly. exactly I’m searching for that.

    sonali Jan 4, 2019 1:44 pm Reply

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