Fasteners

1.1 Bolts

Bolts dimensions are defined in both ISO metric and imperials sizes with unified national fixed pitch (UN), coarse pitch (UNC), fine pitch (UNF) thread profile. Types of Hex Bolt, Machined Bolt, Socket Head Bolts, J-Bolts, U-Bolts etc. These are produced across all material categories and ASTM specifications.


Forging Hot & Cold Forged
Metric Size M10 to M52
Imperial Size 3/8 to 2-1/2"
Threads UNC, UNF, ISO
Standards ASME,BS,DIN,ISO


1.2 Screws

FortunrPro primarily manufactures and supply screws of grades 8.8, 10.9, 12.9 in high tensile while A2-50, A2- 70, A2-80, and A4-50 & A4-70 in corrosion resistant stainless steel.

Screws of Hex Cap, Socket Cap, Square Head, Flanged Head, Round Head, Flat Head types are commonly used. Screws are produced in metric and imperial sizes. DIN / ISO & ASME B18.2.3.1M are most standard dimensional specification used for manufacturing Screws. We offer Screws in coarse, fine threads with UNC, UNF thread profile.

Forging Hot & Cold Forged
Metric Size M10 to M52
Imperial Size 3/8 to 2-1/2"
Threads UNC, UNF, ISO
Standards ASME,BS,DIN,ISO

1.3 Stud bolts
Threaded stud bolt dimensions are defined in both metric and imperials sizes with unified national coarse pitch (UNC), fine pitch (UNF), fixed pitch (UN) and ISO metric thread profile. Stud bolts implies to plain threaded rods with full body threads.

Threaded studs come with chamfered and non-chamfered ends. Full threaded stud bolts are used with 2 regular or heavy hex nuts. Chamfered stud bolts are used for bolting various flanges where length is derived from calculation as per ANSI/ASME B16.5 or other respective flange standards. Plain non chamfered stud bolts are often used for general bolting. These are produced in all material categories and ASTM specifications.

Forging Hot & Cold Forged
Metric Size M10 to M52
Imperial Size 3/8 to 2-1/2"
Threads UNC, UNF, ISO
Standards ASME,BS,DIN,ISO

1.4 Nuts
Nuts are of Hex nut, Acron Nut, Cap Nut, Flange Nut, Wing Nut, Nylock Nut, Slotted Castle Nut types. These nuts can be used with all kinds of bolts. Nut dimensions are defined in both metric and imperials sizes with unified national coarse pitch (UNC), fine pitch (UNF), fixed pitch (UN) and ISO metric thread profile. These are produced in all material categories and ASTM specifications.

Forging Hot & Cold Forged
Metric Size M10 to M52
Imperial Size 3/8 to 2-1/2"
Threads UNC, UNF, ISO
Standards ASME,BS,DIN,ISO

1.5 Washer
Washers are of plain Flat Washer, Spring Lock Washer, Tooth lock washer, Fender Washer, Sealing Washers types. Washers are providing the proper surface area to nut and locking arrangements. Washers are suitable for all types of applications. These are produced in all material categories and ASTM specifications.

Metric Size M10 to M52
Imperial Size 3/8 to 2-1/2"
Threads UNC, UNF, ISO
Standards ASME,BS,DIN,ISO

Standards
  • American ASME
  • International ISO
  • >Indian IS
  • British BS
  • German DIN
  • >American SAE
  • European EU
Bolting Materials
Alloy Steel, Carbon Steel, Stainless Steel, Chromium Vanadium.

1. Bearing Lock nuts & Washers
Bearing lock nuts & Washers are used to locate bearings onto a shaft. Additionally, they can be used to mount bearings with a tapered bore ont tapered shaft seats and adapter sleeves and to dismount bearings from withdrawal sleeves. Lock nuts are also frequently used to secure gears, belt pulleys, and other machine components. Bearing nuts are defined in both metric and imperials sizes.

Metric Size M10 to M52
Imperial Size 3/8 to 2-1/2"
Threads UNC, UNF, ISO