Partial Thread Studs
Partial Thread Studs
STUD SPECIFICATIONS
D
Min. L
C
A
Fillet Dimension
E
F
1/4-20
3/8
.215
3/8
5/16
3/32
5/16-18
43/64
.275
3/8
13/32
7/64
3/8-16
27/32
330
3/8
15/32
7/64
7/16-14
15/16
.387
7/16
17/32
1/8
1/2-13
1 1/32
.448
1/2
19/32
5/32
5/8-11
1 13/64
.562
5/8
3/4
3/16
3/4-10
1 7/16
.680
51/64
59/64
1/4
7/8-9
1 39/64
.798
55/64
1 3/64
5/16
1-8
1 51/64
.915
59/64
1 3/16
11/32

HOW TO ORDER

Specify diameter, thread size, before weld (BW) length, type of material.

EXAMPLE

1/2-13 X 1 1/8" (BW) full thread (PT), mild steel

Online Quote Form
FERRULE SPECIFICATIONS
No.
D
B
G
M
FF-025
.455
.385
.125
.250
FF-031
.535
.445
.125
.250
FF-037
.590
.505
.139
.264
FF-043
.675
.585
.173
.329
FF-050
.740
.650
.206
.362
FF-062
.910
.785
.277
.433
FF-075
1.150
1.030
.339
.526
FF-087
1.330
1.210
.406
.593
FF-100
1.526
1.406
.474
.661

HOW TO DETERMINE
BEFORE WELD (BW) LENGTH

First establish the standing length of the stud after weld (AW).

Based on the diameter of the stud, include the following additional length before weld (BW).

Diameters up through 9/16" add 1/8"
Diameters from 5/8" through 7/8" add 3/16"
Diameters 1" through 1 1/4" add 1/4"