Threaded-Stud Knobs
![](/prerenderstable/mvPRE/contents/gfx/imagecache/604/6042k85p1-g02d-digital@halfx_637042561878328264.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/622/62215k51p1-g02d-digital@halfx_637042610061749337.png?ver=imagenotfound)
Mount these knobs into a threaded hole. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
Iron knobs with a zinc-plated finish have mild rust resistance.
For technical drawings and 3-D models, click on a part number.
Head | Hub | Each | |||||||
---|---|---|---|---|---|---|---|---|---|
Thread Size | Stud Lg. | Dia. | Ht. | Dia. | Ht. | Stud Material | 1-9 | 10-Up | |
Style 1—Knurled Grip | |||||||||
Zinc-Plated Iron | |||||||||
1/4"-20 | 1 3/4" | 1 1/2" | 3/8" | 5/8" | 1/2" | Steel | 0000000 | 000000 | 00000 |
1/4"-20 | 3" | 1 1/2" | 3/8" | 5/8" | 1/2" | Steel | 0000000 | 00000 | 00000 |
5/16"-18 | 1 3/4" | 2" | 3/8" | 3/4" | 1/2" | Steel | 0000000 | 00000 | 0000 |
5/16"-18 | 3" | 2" | 3/8" | 3/4" | 1/2" | Steel | 0000000 | 00000 | 00000 |
3/8"-16 | 1 3/4" | 2" | 3/8" | 3/4" | 1/2" | Steel | 0000000 | 00000 | 00000 |
3/8"-16 | 3" | 2" | 3/8" | 3/4" | 1/2" | Steel | 000000 | 00000 | 00000 |
1/2"-13 | 1 3/4" | 2 1/2" | 1/2" | 1 1/8" | 1" | Steel | 0000000 | 00000 | 00000 |
1/2"-13 | 3" | 2 1/2" | 1/2" | 1 1/8" | 1" | Steel | 0000000 | 00000 | 00000 |
5/8"-11 | 1 3/4" | 2 1/2" | 1/2" | 1 1/8" | 1" | Steel | 0000000 | 00000 | 00000 |
5/8"-11 | 3" | 2 1/2" | 1/2" | 1 1/8" | 1" | Steel | 0000000 | 00000 | 00000 |
Style 14—Four Arm Grip | |||||||||
Iron | |||||||||
1/4"-20 | 1 3/4" | 1 1/2" | 3/8" | 5/8" | 1/2" | Steel | 00000000 | 0000 | 0000 |
1/4"-20 | 3" | 1 1/2" | 3/8" | 5/8" | 1/2" | Steel | 00000000 | 00000 | 00000 |
5/16"-18 | 1 3/4" | 2" | 3/8" | 3/4" | 5/8" | Steel | 00000000 | 00000 | 0000 |
5/16"-18 | 3" | 2" | 3/8" | 3/4" | 5/8" | Steel | 00000000 | 00000 | 00000 |
3/8"-16 | 1 3/4" | 2" | 3/8" | 3/4" | 5/8" | Steel | 00000000 | 00000 | 0000 |
3/8"-16 | 3" | 2" | 3/8" | 3/4" | 5/8" | Steel | 00000000 | 00000 | 00000 |
1/2"-13 | 1 3/4" | 2 1/2" | 1/2" | 1 1/8" | 1" | Steel | 00000000 | 00000 | 00000 |
1/2"-13 | 3" | 2 1/2" | 1/2" | 1 1/8" | 1" | Steel | 00000000 | 00000 | 00000 |
5/8"-11 | 1 3/4" | 2 1/2" | 1/2" | 1 1/8" | 1" | Steel | 00000000 | 00000 | 00000 |
5/8"-11 | 3" | 2 1/2" | 1/2" | 1 1/8" | 1" | Steel | 00000000 | 00000 | 00000 |
Unthreaded Through-Hole Knobs
![](/prerenderstable/mvPRE/contents/gfx/imagecache/604/6042k58p1-g02d-digital@halfx_637042576502406729.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/604/6042k55p1-g02d-digital@halfx_637042793289138661.png?ver=imagenotfound)
Create custom threads or secure with a set screw to provide a firm grip to position, tighten, and hold fixtures, equipment, and machinery. Long shafts can pass through these knobs for mounting versatility.
For technical drawings and 3-D models, click on a part number.
Hole | Head | Hub | Each | |||||
---|---|---|---|---|---|---|---|---|
Dia. | Dp. | Dia. | Ht. | Dia. | Ht. | 1-9 | 10-Up | |
Style 4—Four Arm Grip | ||||||||
Iron | ||||||||
1/4" | 11/16" | 1 1/8" | 5/16" | 9/16" | 3/8" | 0000000 | 000000 | 00000 |
5/16" | 1" | 1 1/2" | 7/16" | 5/8" | 9/16" | 0000000 | 00000 | 0000 |
3/8" | 1" | 2" | 7/16" | 3/4" | 9/16" | 0000000 | 00000 | 00000 |
1/2" | 1 1/2" | 2 9/16" | 1/2" | 1 1/8" | 1" | 0000000 | 00000 | 00000 |
5/8" | 2 1/4" | 2 1/2" | 1/2" | 1" | 1 3/4" | 0000000 | 00000 | 00000 |
Style 7—Six Arm Grip | ||||||||
Iron | ||||||||
3/8" | 1" | 2" | 1/2" | 7/8" | 1/2" | 00000000 | 00000 | 00000 |
3/8" | 2" | 1 1/2" | 1/2" | 7/8" | 1 1/2" | 0000000 | 00000 | 00000 |
3/8" | 2" | 2" | 1/2" | 7/8" | 1 1/2" | 0000000 | 00000 | 00000 |
1/2" | 1 1/4" | 2 3/4" | 1/2" | 1 1/4" | 3/4" | 0000000 | 00000 | 00000 |
1/2" | 2" | 2 3/4" | 1/2" | 1 1/4" | 1 1/2" | 0000000 | 00000 | 00000 |
3/4" | 1 1/2" | 3 1/2" | 5/8" | 1 5/8" | 7/8" | 0000000 | 00000 | 00000 |
Threaded Through-Hole Knobs
![](/prerenderstable/mvPRE/contents/gfx/imagecache/604/6042k81p1-g02d-digital@halfx_637042647474712728.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/394/3948t27p1-g02d-digital@halfx_637042796014244666.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/604/6042k83p1-g02d-digital@halfx_637042640773529403.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/394/3948t28p1-g02d-digital@halfx_637042645892865062.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/604/6042k74p1-g02d-digital@halfx_637042676187198838.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/394/3948t23_6ed3ab4e-5312-4153-a3ff-a971b98ba1451711054141@halfx_1711054144.png?ver=imagenotfound)
Long shafts can thread through these knobs for mounting versatility. The knobs provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
For technical drawings and 3-D models, click on a part number.
Thread | Head | Hub | Each | ||||||
---|---|---|---|---|---|---|---|---|---|
Size | Dp. | Dia. | Ht. | Dia. | Ht. | Set Screw Thread Size | 1-9 | 10-Up | |
Style 7—Four Arm Grip | |||||||||
Iron | |||||||||
1/4"-20 | 11/16" | 1 1/8" | 5/16" | 9/16" | 3/8" | __ | 0000000 | 000000 | 00000 |
5/16"-18 | 1" | 1 1/2" | 7/16" | 5/8" | 9/16" | __ | 0000000 | 00000 | 0000 |
3/8"-16 | 1" | 2" | 7/16" | 3/4" | 9/16" | __ | 0000000 | 00000 | 00000 |
1/2"-13 | 1 1/2" | 2 9/16" | 1/2" | 1 1/8" | 1" | __ | 0000000 | 00000 | 00000 |
5/8"-11 | 2 1/4" | 2 1/2" | 1/2" | 1" | 1 3/4" | __ | 0000000 | 00000 | 00000 |
Style 8—Four Arm Grip | |||||||||
Iron | |||||||||
3/8"-16 | 1" | 2" | 7/16" | 3/4" | 9/16" | 1/4"-20 | 0000000 | 00000 | 00000 |
1/2"-13 | 1 1/2" | 2 9/16" | 1/2" | 1 1/8" | 1" | 1/4"-20 | 0000000 | 00000 | 00000 |
5/8"-11 | 2 1/4" | 2 1/2" | 1/2" | 1" | 1 3/4" | 1/4"-20 | 0000000 | 00000 | 00000 |
Style 9—Five Arm Grip | |||||||||
Iron | |||||||||
5/8"-11 | 1 3/4" | 3" | 1/2" | 1 1/4" | 1 1/4" | __ | 0000000 | 00000 | 00000 |
3/4"-10 | 1 3/4" | 3 1/4" | 1/2" | 1 1/2" | 1 1/4" | __ | 0000000 | 00000 | 00000 |
Style 10—Five Arm Grip | |||||||||
Iron | |||||||||
5/8"-11 | 1 3/4" | 3" | 1/2" | 1 1/4" | 1 1/4" | 1/4"-20 | 0000000 | 00000 | 00000 |
3/4"-10 | 1 3/4" | 3 1/4" | 1/2" | 1 1/2" | 1 1/4" | 1/4"-20 | 0000000 | 00000 | 00000 |
Style 11—Six Arm Grip | |||||||||
Iron | |||||||||
3/8"-16 | 1" | 2" | 1/2" | 7/8" | 1/2" | __ | 00000000 | 00000 | 00000 |
3/8"-16 | 2" | 1 1/2" | 1/2" | 7/8" | 1 1/2" | __ | 0000000 | 00000 | 00000 |
3/8"-16 | 2" | 2" | 1/2" | 7/8" | 1 1/2" | __ | 0000000 | 00000 | 00000 |
1/2"-13 | 1 1/4" | 2 3/4" | 1/2" | 1 1/4" | 3/4" | __ | 0000000 | 00000 | 00000 |
1/2"-13 | 2" | 2 3/4" | 1/2" | 1 1/4" | 1 1/2" | __ | 0000000 | 00000 | 00000 |
3/4"-10 | 1 1/2" | 3 1/2" | 5/8" | 1 5/8" | 7/8" | __ | 0000000 | 00000 | 00000 |
Style 12—Six Arm Grip | |||||||||
Iron | |||||||||
3/8"-16 | 2" | 2" | 1/2" | 7/8" | 1 1/2" | 1/4"-20 | 0000000 | 00000 | 00000 |
1/2"-13 | 1 1/4" | 2 3/4" | 1/2" | 1 1/4" | 3/4" | 1/4"-20 | 0000000 | 00000 | 00000 |
1/2"-13 | 2" | 2 3/4" | 1/2" | 1 1/4" | 1 1/2" | 1/4"-20 | 0000000 | 00000 | 00000 |
3/4"-10 | 1 1/2" | 3 1/2" | 5/8" | 1 5/8" | 7/8" | 1/4"-20 | 0000000 | 00000 | 00000 |
Machinable-Hub Knobs
![](/prerenderstable/mvPRE/contents/gfx/imagecache/604/6042k41p1-g02d-digital@halfx_637042798510400414.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/604/6042k43p1-g02d-digital@halfx_637042727122134127.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/604/6042k34p1-g02d-digital@halfx_637042762784120884.png?ver=imagenotfound)
Mill specific holes or keyways in the hub to meet your specifications, or weld in place. These knobs provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.
For technical drawings and 3-D models, click on a part number.
Head | Hub | Each | ||||
---|---|---|---|---|---|---|
Dia. | Ht. | Dia. | Ht. | 1-9 | 10-Up | |
Style 4—Four Arm Grip | ||||||
Iron | ||||||
1 1/8" | 5/16" | 9/16" | 3/8" | 0000000 | 00000 | 00000 |
1 1/2" | 7/16" | 5/8" | 9/16" | 0000000 | 0000 | 0000 |
2" | 7/16" | 3/4" | 9/16" | 0000000 | 0000 | 0000 |
2 1/2" | 1/2" | 1" | 1 3/4" | 0000000 | 00000 | 00000 |
2 9/16" | 1/2" | 1 1/8" | 1" | 0000000 | 0000 | 0000 |
Style 6—Five Arm Grip | ||||||
Iron | ||||||
3" | 1/2" | 1 1/4" | 1 1/4" | 0000000 | 00000 | 00000 |
3 1/4" | 1/2" | 1 1/2" | 1 1/4" | 0000000 | 00000 | 00000 |
Style 7—Six Arm Grip | ||||||
Iron | ||||||
1 1/2" | 1/2" | 7/8" | 1 1/2" | 0000000 | 0000 | 0000 |
2" | 1/2" | 7/8" | 1/2" | 0000000 | 0000 | 0000 |
2" | 1/2" | 7/8" | 1 1/2" | 0000000 | 00000 | 0000 |
2 3/4" | 1/2" | 1 1/4" | 3/4" | 0000000 | 00000 | 00000 |
2 3/4" | 1/2" | 1 1/4" | 1 1/2" | 0000000 | 00000 | 00000 |
3 1/2" | 5/8" | 1 5/8" | 7/8" | 0000000 | 00000 | 00000 |
Machinable-Hub Bar Knobs
![](/prerenderstable/mvPRE/contents/gfx/imagecache/614/6145k2c1-g02d-digital-master1568670310-p9@halfx_637042547133236007.png?ver=imagenotfound)
Mill specific holes or keyways in the hub to meet your specifications, or weld in place. Insert a bar between the arms and twist. The bar provides maximum leverage to tighten knobs securely. Made of iron, these knobs have a zinc-plated finish for corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Threaded Through-Hole Bar Knobs
![](/prerenderstable/mvPRE/contents/gfx/imagecache/614/6145k22c1-g02d-digital-master1568670324-p9@halfx_637042578717659742.png?ver=imagenotfound)
Install these knobs on a threaded stud. Insert a bar between the arms and twist. The bar provides maximum leverage to tighten knobs securely. Made of iron, these knobs have a zinc-plated finish for corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Thread | Head | Hub | Each | ||||||
---|---|---|---|---|---|---|---|---|---|
Size | Dp. | For Max. Bar Dia. | Ht. | Wd. | Dia. | Ht. | 1-9 | 10-Up | |
Four Arm Grip | |||||||||
Zinc-Plated Iron | |||||||||
3/8"-16 | 1 3/8" | 7/16" | 1 1/4" | 2" | 1 1/4" | 7/8" | 0000000 | 000000 | 000000 |
1/2"-13 | 1 3/8" | 7/16" | 1 1/4" | 2" | 1 1/4" | 7/8" | 0000000 | 00000 | 00000 |
1/2"-13 | 1 1/2" | 11/16" | 1 7/16" | 2 1/2" | 1 1/2" | 15/16" | 0000000 | 00000 | 00000 |
5/8"-11 | 1 3/8" | 7/16" | 1 1/4" | 2" | 1 1/4" | 7/8" | 0000000 | 00000 | 00000 |
5/8"-11 | 1 1/2" | 11/16" | 1 7/16" | 2 1/2" | 1 1/2" | 15/16" | 0000000 | 00000 | 00000 |
3/4"-10 | 1 1/2" | 11/16" | 1 7/16" | 2 1/2" | 1 1/2" | 15/16" | 0000000 | 00000 | 00000 |