Fasteners are components used in pair for joining two or more components with a interlocking mechanism (in case of industrial fasteners; bolts, screws,etc. interlock mechanism is mechanical screw thread) with ease of fastening and unfastening a joint.
Industrial Fasteners are broadly categorized into Bolts, Screws, Nuts, Washers, etc. with further division in to head styles, forms, drive types, measurement attributes, material of construction, etc. We shall cover every each of these categories with maximum detailing.
Bolts are externally threaded fasteners used with a opposite profile internally threaded nut of identical stature. Bolts are further classified on basis of their head styles, thread types, measurements and material of construction.
Bolt Head Styles : Hex Head, Heavy Hex Head, Washer Faced, Double Chamfered, Square Head, Countersunk Flat, Slotted Hex Head, Raised Countersunk, Round Head, Pan Head, Cheese Head, Raised Cheese Head, Mushroom Head, Countersunk Hex Socket, Knurled Head, etc.
Bolt Thread Types :
ISO Metric Threads, Acme Threads, Whitworth Inch Coarse Threads, Buttress Metric Coarse Threads, Buttress Metric Fine Threads, Unified Coarse Threads, Unified Fine Threads, Bolt, Stub Acme Threads, Metric Fine Threads, etc.
Bolt Size Measurement : Metric Bolts, Imperial Bolts.
Bolt Material : High Tensile Bolts, High Strength Bolts, Stainless Steel Bolts, High Temperature Bolts, Corrosion Resistant Bolts, Marine Grade Bolts, HDG Bolts, etc.
Screws are identical to bolts but screws are generally single players (often without a nut), fastened to a internally screwed component or part. Alike bolts, screws are also classified on basis of their head styles, screw drive types, threads, size and their MOC.
Screw Head Styles : Hex Cap Screws, Socket head Cap Screws, Pan Head Screws, Mushroom Head Screws, Philip Head Screws, Button Head Screws, Cheese Head Screws, Round Head Screws, Countersunk Screws, Raised Cheese, Truss Head Screw, Oval Head Screws, Flat Head Screw, Fillister Head Screws.
Screw Drive Types : Slotted Screw Drive, Philip Screw Drive, Pozidriv Screw Drive, Square Screw Drive, Robertson Screw Drive, External Hex Screw, Allen Screw Drive, Security Hex Screw Drive, Torx Screw Drive, Security Torx Screw Drive, Tri-Wing Screw Drive, Torq-Set Screw Drive, Spanner Screw Drive, Triple Square Drive, Polydrive Screw, One Way Screw, Spline Socket Screw, Double Hex Socket Screw Drive, Bristol Socket Screw Drive, Pentalobular Screw Drive.
Screw Thread Types : ISO Metric Threads, Acme Threads, Whitworth Inch Coarse Threads, Buttress Metric Coarse Threads, Buttress Metric Fine Threads, Unified Coarse Threads, Unified Fine Threads, Bolt, Stub Acme Threads, Metric Fine Threads, etc.
Screw Size Measurement : Metric Screws, Imperial Screws.
Screw Material : Stainless Steel Screws, Carbon Steel Screws, Zinc Plated Screws, etc.
Nuts are internally threaded component often screwed with bolts, threaded rod or any other externally threaded fasteners. Further classified like other fasteners.
Nut Style : Hex Nuts, Heavy Hex Nuts, Tall Hex Nuts, Square Nuts, Eye Nuts, Tee Slot Nuts, Hex Coupling Nuts, Castle Nuts, Slotted Nuts, Dome Nuts, Cap Nuts, Nylock Nuts, All Metal Lock Nuts.
Nut Thread Types : ISO Metric Threads, Acme Threads, Whitworth Inch Coarse Threads, Buttress Metric Coarse Threads, Buttress Metric Fine Threads, Unified Coarse Threads, Unified Fine Threads, Bolt, Stub Acme Threads, Metric Fine Threads, etc.
Nut Material : High Tensile Nuts, Carbon Steel Nuts, Stainless Steel Nuts, Zinc Plated Nuts, HDG Nuts, etc.