4 Arm Clamping Knobs provide a secure multi lobed grip to position, tighten, and hold fixtures, equipment, and machinery. We offer a large selection of knob sizes, thread configurations and ergonomic grips to meet your design requirements. Our pronged knobs feature a plastic base design which provide excellent chemical resistance and a more economical choice opposed to all-steel versions.
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Use the filters or search below to find what you're looking for
| Price range | Availability | Stud Length | Knob Diameter | Thread Size | Insert Type | Insert Material | Knob Material | View | |
|---|---|---|---|---|---|---|---|---|---|
| $1.13 - $1.94 | Request the lead time here |  | 
1.400 in
 
35.6 mm
 | 
1/4" x 20
 | 
Blind Hole
 | 
Brass
 | 
PP
 | ||
| $1.56 - $2.67 | Request the lead time here | 
2.500 in
 
63.5 mm
 | 
1.750 in
 
44.5 mm
 | 
5/16-18
 | 
Stud
 | 
Steel
 | 
PP
 | ||
| $1.98 - $3.42 | Request the lead time here | 
1.250 in
 
31.8 mm
 | 
2.500 in
 
63.5 mm
 | 
3/8-16
 | 
Stud
 | 
Steel
 | 
PP
 | ||
| $2.27 - $3.89 | Request the lead time here | 
0.750 in
 
19.1 mm
 | 
1.730 in
 
43.9 mm
 | 
10-32
 | 
Stud
 | 
Steel
 | 
TPE
 | ||
| $1.13 - $1.94 | Request the lead time here | 
2.000 in
 
50.8 mm
 | 
1.400 in
 
35.6 mm
 | 
5/16-18
 | 
Stud
 | 
Steel
 | 
PP
 | ||
| $1.97 - $3.39 | Request the lead time here | 
0.370 in
 
9.4 mm
 | 
1.400 in
 
35.6 mm
 | 
1/4" x 20
 | 
Stud
 | 
Steel
 | 
TPE
 | ||
| $2.16 - $3.72 | 1244 In stock | 
1.250 in
 
31.8 mm
 | 
1.400 in
 
35.6 mm
 | 
1/4" x 20
 | 
Stud
 | 
Steel
 | 
TPE
 | ||
| $1.29 - $2.21 | Request the lead time here | 
0.500 in
 
12.7 mm
 | 
1.730 in
 
43.9 mm
 | 
1/4" x 20
 | 
Stud
 | 
Steel
 | 
PP
 | ||
| $2.10 - $3.60 | Request the lead time here | 
2.500 in
 
63.5 mm
 | 
2.500 in
 
63.5 mm
 | 
3/8-16
 | 
Stud
 | 
Steel
 | 
PP
 | ||
| $1.83 - $3.14 | Request the lead time here | 
1.000 in
 
25.4 mm
 | 
2.500 in
 
63.5 mm
 | 
5/16-18
 | 
Stud
 | 
Steel
 | 
PP
 | ||
| $1.79 - $3.08 | Request the lead time here |  | 
1.400 in
 
35.6 mm
 | 
10-32
 | 
Blind Hole
 | 
Steel
 | 
TPE
 | ||
| $2.64 - $4.55 | Request the lead time here | 
1.500 in
 
38.1 mm
 | 
2.000 in
 
50.8 mm
 | 
1/4" x 20
 | 
Stud
 | 
Steel
 | 
TPE
 | ||
| $2.04 - $3.51 | Request the lead time here | 
1.500 in
 
38.1 mm
 | 
2.500 in
 
63.5 mm
 | 
3/8-16
 | 
Stud
 | 
Steel
 | 
PP
 | ||
| $1.52 - $2.61 | Request the lead time here |  | 
1.750 in
 
44.5 mm
 | 
5/16-18
 | 
Blind Hole
 | 
Steel
 | 
PP
 | ||
| $1.59 - $2.73 | Request the lead time here |  | 
2.500 in
 
63.5 mm
 | 
1/4" x 20
 | 
Through Hole
 | 
Steel
 | 
PP
 | ||
| $1.61 - $2.78 | 76 In stock | 
3.000 in
 
76.2 mm
 | 
1.750 in
 
44.5 mm
 | 
3/8-16
 | 
Stud
 | 
Steel
 | 
PP
 | ||
| $2.36 - $4.05 | Request the lead time here | 
0.500 in
 
12.7 mm
 | 
1.730 in
 
43.9 mm
 | 
5/16-18
 | 
Stud
 | 
Steel
 | 
TPE
 | ||
| $1.67 - $2.87 | Request the lead time here | 
0.500 in
 
12.7 mm
 | 
2.500 in
 
63.5 mm
 | 
1/4" x 20
 | 
Stud
 | 
Steel
 | 
PP
 | ||
| $1.44 - $2.48 | Request the lead time here | 
0.500 in
 
12.7 mm
 | 
1.730 in
 
43.9 mm
 | 
5/16-18
 | 
Stud
 | 
Steel
 | 
PP
 | ||
| $0.66 - $1.14 | Request the lead time here | 
3.250 in
 
82.6 mm
 | 
1.150 in
 
29.2 mm
 | 
10-24
 | 
Stud
 | 
Steel
 | 
PP
 | ||
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