Stud bolts implied for bolting pipeline flanges, are called flange stud bolts. These flange studs have continuous threaded body and chamfered ends. Engagement length is considered from first threaded to last thread, excluding the chamfered ends. One of the dimension standards for flange stud bolts is ANSI/ASME B16.5. Length calculations are done according to the size and pressure-temperature ratings of the flange. Flange 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. These are produced across all material categories and astm specifications.
Browse the page for information on flange stud bolt manufacturing process, forming method, available sizes, sub-types, thread types, metric and imperial dimension standards, weight charts, torque values, material categories, grades and astm specifications.
Forming | Hot & Cold Forged |
Metric Size | M10 to M100 |
Imperial Size | 3/8 to 8" |
Threads | UNC, UNF, ISO, BSW & ACME. |
Standards | ASME,BS,DIN,ISO,UNI,DIN-EN |
Sub types | 1. Fully Threaded Flange Stud Bolts 2. Partial Threaded Flange Stud Bolts 3. Metric Flange Stud Bolts 4. Imperial Flange Stud Bolts |
ASME B18.2.1 | 3/8 inch to 3 inch |
BS 1769 | ½ inch to 2 inch |
ASME B18.2.3.6M | M12 to M36 |
ASME B18.2.3.7M | M16 to M36 |
DIN 6914 | M12 to M36 |
ISO 7412 | M12 to M36 |
UNI 5712 | M12 to M36 |
DIN-EN 14399-4 | M12 to M36 |