ASME B18.31.3 Threaded Rods

Product Description

This Standard covers the complete dimensional and general data for continuous thread, flange studs (stud bolts), and double-end inch-dimensioned studs. The following configurations are covered:

Continuous thread stud: studs that are threaded over their complete length.

Leader-Fastener® Flange stud (stud bolt): threaded studs used primarily in applications with flanges covered by ASME B16.5, and made using ASTM A01 bolting materials.

Double-end stud (clamping type—identical ends): studs with screw threads of the same length and configuration on each end. This type of stud serves the function of clamping two bodies together with a nut on each end.

Double-end stud (tap end type): a stud designed to be installed in a tapped hole and usually with different threaded lengths on each end. For the tap end of the studs, both regular unified threads and interference-fit threads are covered.

Double-end studs of the following body diameters are covered:

(a) Reduced diameter body

(b) Full body

Leader-Fastener® ASME B18.31.3 Threaded Rods

Nominal SizeDiameter, DThreads Per InchUmax= 2 Thread Pitches = 2P
UNCUNF8UNUNC ThreadsUNF Threads8UN Threads
1/40.25002028-0.1000.071-
5/160.31251824-0.1110.083-
3/80.37501624-0.1250.083-
7/160.43751420-0.1430.100-
1/20.50001320-0.1540.100-
9/160.56251218-0.1670.111-
5/80.62501118-0.1820.111-
3/40.75001016-0.2000.125-
7/80.8750914-0.2220.143-
11.0000812-0.2500.167-
1-1/81.125071280.2860.1670.25
1-1/41.250071280.2860.1670.25
1-3/81.375061280.3330.1670.25
1-1/21.500061280.3330.1670.25
1-5/81.6250--8--0.25
1-3/41.75005-80.400-0.25
1-7/81.8750--8--0.25
22.00004-1/2-80.444--0.25
2-1/42.25004-1/2-80.444-0.25
2-1/22.50004-80.500-0.25
2-3/42.75004-80.500-0.25
33.00004-80.500-0.25
3-1/43.25004-80.500-0.25
3-1/23.50004-80.500-0.25
3-3/43.75004-80.500-0.25
44.00004-80.500-0.25