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

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"