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Ohaus Specialty Clamps
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LabJaws Clamps are designed to securely grip and position laboratory apparatus. Extension arm clamps with a 360° rotation allow placement of apparatus at various distances from lab-frames and are easily secured with optional holders. Swivel, fixed position and thermometer clamps easily hold apparatus near the lab-frame or stand and have a built-in holder for simple attachment to lab-frames or apparatus. Flow control clamps available in 7 styles
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Ohaus Specialty Clamps
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Specifications Chart

Ohaus Specialty Clamps

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A LabJaws Clamp for Every Application—Choose From Over 85 Options to Hold Everything In Your Lab LabJaws Clamps are designed to securely grip and position laboratory apparatus. Extension arm clamps with a 360° rotation allow placement of apparatus at various distances from lab-frames and are easily secured with optional holders. Swivel, fixed position and thermometer clamps easily hold apparatus near the lab-frame or stand and have a built-in holder for simple attachment to lab-frames or apparatus. Flow control clamps available in 7 styles.

  • Choice of Stainless Steel or Zinc to best Suit Your Application Corrosion-resistant stainless steel clamps provide excellent chemical resistance, durability, and can be autoclaved. Nickel-plated zinc clamps offer high-tensile strength at an economical price.
  • Secure Any Glassware and Apparatus with Sturdy 2 and 3 Prong Clamps Prevent accidents in the lab! Versatile multi-purpose LabJaws clamps securely hold glassware and irregularly-shaped objects. Select from a variety of grip sizes, prong styles and adjustment types.
  • Specially Designed Clamps for a Precise Fit Choose from a variety of specialized LabJaws clamps with adjustable features to provide an exact fit for lab ware such as thermometers, thermocouples, columns, funnels, and round bottom flasks.
Model Photo Clamp Style Material Grip Range Size Arm Length Height Length Width Arm Diameter Flow Style Price
CLS-BTDBLZ
30392234
Ohaus CLS-BTDBLZ Specialty Nickel-Plated Buret Holder Clamp - micro – 100 mL burets
Buret Holder Nickel plated Zinc - Micro
100 mL burets
- 4.25 in
108 mm
- 6.8 in
173 mm
6.8 in
173 mm
- $69.30
CLS-BTDBLS
30392227
Ohaus CLS-BTDBLS Specialty Stainless Steel Buret Holder Clamp - micro – 100 mL burets
Buret Holder Stainless Steel - Micro
100 mL burets
- 4.25 in
108 mm
- 6.8 in
173 mm
6.8 in
173 mm
- $165.60
CLS-BTDBLS
30392227
Ohaus CLS-WBATHZS Specialty Nickel-Plated 2-Prong Dual Adjust Water Bath Clamp - 0.2 in -- 0.39 in (5 mm – 10 mm)
2-Prong Dual Adjust Water Bath Nickel plated Zinc 0.2 in.–0.39 in
5 mm–10 mm
Small - - 3.50 in
89 mm
- - - $39.00
CLS-WBATHZL
30392241
Ohaus CLS-WBATHZL Specialty Nickel-Plated 3-Prong Dual Adjust Water Bath Clamp - 0 in -- 1.81 in (0 mm – 46 mm)
3-Prong Dual Adjust Water Bath Nickel plated Zinc 0 in–1.81 in
0 mm–46 mm
Large - - 4.61 in.
117 mm
- - - $51.30
CLS-WBATHZL
30392259
Ohaus CLS-CHAINZL Specialty Nickel-Plated Chain Clamp - 1.38 in -- 11.02 in (35 mm – 280 mm)
Chain Nickel plated Zinc 1.38 in.–11.02 in.
35 mm–280 mm
Large 5 in
127 mm
- 8.11 in.
206 mm
- 0.51 in.
13 mm
- $87.98
CLS-CHNEXZL
30392260
Ohaus CLS-CHNEXZL Specialty Nickel-Plated Chain Clamp w/ 12 in Arm - 1.38 in -- 11.02 in (35 mm – 280 mm)
Chain Nickel plated Zinc 1.38 in.–11.02 in.
35 mm–280 mm
Large 12 in
305 mm
- 15.12 in
384 mm
- 0.51 in.
13 mm
- $94.62
CLS-CHAINSL
30392224
Ohaus CLS-CHAINSL Specialty Stainless Steel Chain Clamp - 1.38 in -- 11.02 in (35 mm – 280 mm)
Chain Stainless Steel 1.38 in.–11.02 in.
35 mm–280 mm
Large 5 in.
127 mm
- 8.11 in.
206 mm
- 0.51 in.
13 mm
- $208.80
CLS-CHAINZM
30392235
Ohaus CLS-CHAINZM Specialty Nickel-Plated Chain Clamp - 1.38 in -- 6.69 in (35 mm – 170 mm)
Chain Nickel plated Zinc 1.38 in.–11.02 in.
35 mm–280 mm
Small 5 in.
127 mm
- 7.4 in..
188 mm
- 0.51 in.
13 mm
- $66.60
CLS-COLMNSS
30392314
Ohaus CLS-COLMNSS Specialty Stainless Steel Column Clamp - 2.56 in -- 3.5 in (65 mm – 89 mm)
Column Stainless Steel 2.56 in.–3.5 in.
65 mm–89 mm
Small 8.31 in.
211 mm
- 11.1 in.
282 mm
- 0.43 in.
11 mm
- $76.50
CLS-COLMNSX
30392317
Ohaus CLS-COLMNSX Specialty Stainless Steel Column Clamp - 3.62 in -- 6.5 in (92 mm – 165 mm)
Column Stainless Steel 3.62 in.–6.5 in.
92 mm–165 mm
Extra Large 8.31 in.
211 mm
- 14.49 in.
368 mm
- 0.43 in.
11 mm
- $79.20
CLS-COLMNSL
30392316
Ohaus CLS-COLMNSL Specialty Stainless Steel Column Clamp - 2.52 in -- 5.51 in (64 mm – 140 mm)
Column Stainless Steel 2.52 in.–5.51 in.
64 mm–140 mm
Large 8.31 in.
211 mm
- 13.31 in..
338 mm
- 0.43 in.
11 mm
- $79.20
CLS-COLMNSM
30392315
Ohaus CLS-COLMNSM Specialty Stainless Steel Column Clamp - 3.58 in -- 4.49 in (91 mm – 114 mm)
Column Stainless Steel 3.58 in.–4.49 in
91 mm–114 mm
Medium 8.31 in.
211 mm
- 12.41 in
315 mm
- 0.43 in.
11 mm
- $78.30
Model Photo Clamp Style Material Grip Range Size Arm Length Height Length Width Arm Diameter Flow Style Price
CLF-HKFTZ
30392341
Ohaus CLF-HKFTZ Multi-Purpose Flow Control Hosecock Clamp Set - 0 in - 0.67 in (0 mm – 17 mm)
Hosecock - Adjustable Control Nickel plated Zinc 0 in.–0.67 in.
0 mm–17 mm
- - 2.44 in
62 mm
- 1.46 in
37 mm
- Adjustable Control $44.20
CLF-HKHDZ
30392310
- Hosecock - Adjustable Control Nickel plated Zinc 0 in.–1.14 in.
0 mm–29 mm
- - 4.17 in
106 mm
- 2.24 in
57 mm
- Adjustable Control $44.20
CLF-HKRGZ
30392210
Ohaus CLF-HKRGZ Multi-Purpose Nickel Plated Flow Control Hosecock Clamp - 0 in - 0.67 in (0 mm – 17 mm)
Hosecock - Adjustable Control Nickel plated Zinc 0 in.–0.67 in
0 mm–17 mm
- - 2.44 in.
62 mm
- 1.46 in
37 mm
- Adjustable Control $31.00
CLF-HKRGS
30392221
Ohaus CLF-HKRGS Multi-Purpose Stainless Steel Flow Control Hosecock Clamp - 0 in - 0.67 in (0 mm – 17 mm)
Hosecock - Adjustable Control Stainless Steel 0 in.–0.67 in
0 mm–17 mm
- - 2.44 in.
62 mm
- 1.46 in
37 mm
- Adjustable Control $68.40
CLF-HKEXZ
30392212
Ohaus CLF-HKEXZ Multi-Purpose Flow Control Hosecock Clamp - 0 in - 0.67 in (0 mm – 17 mm)
Hosecock - Adjustable Control Nickel plated Zinc 0 in.–0.67 in
0 mm–17 mm
- 5.71 in
145 mm
- 6.89 in.
175 mm
- 0.32 in
8 mm
Adjustable Control $47.60
CLF-PKVFZ
30392247
Ohaus CLF-PKVFZ Multi-Purpose Flow Control Pinchcock Clamp - 0 in - 0.51 in (0 mm - 13 mm)
Pinchcock - Complete Closure Nickel plated Zinc 0 in.–0.51 in
0 mm–13 mm
- - 1.85 in
47 mm
- - - Complete Closure $29.75
CLF-PKHDZ
30392246
Ohaus CLF-PKHDZ Multi-Purpose Flow Control Pinchcock Clamp - 0 in - 0.43 in (0 mm - 11 mm)
Pinchcock - Complete Closure Nickel plated Zinc 0 in.–0.43 in
0 mm–11 mm
- - 1.89 in.
48 mm
- - - Complete Closure $23.80
CLF-PKHDZ
30392245
Ohaus CLF-PKRGZ Multi-Purpose Flow Control Pinchcock Clamp - 0 in - 0.47 in (0 mm - 12 mm)
Pinchcock - Complete Closure Nickel plated Zinc 0 in.–0.47 in
0 mm–12 mm
- - 1.85 in.
47 mm
- - - Complete Closure $23.80
*Unless noted with an asterisk, an additional holder is required to attach clamps to lab-frames and other apparatus






Model Photo Clamp Style Material Grip Range Arm Length Size Length Arm Diameter Diameter Price
CLS-KTLCLM
30392366
Ohaus CLS-KTLCLM Specialty Flask Kettle Clamp - 2000 mL / 3000 mL / 4000 mL
Kettle - - - 2000 mL
3000 mL
4000 mL Flask
- - - $165.60
CLS-KTLCLS
30392365
Ohaus CLS-KTLCLS Specialty Flask Kettle Clamp - 500 mL / 1000 mL
Kettle - - - 500 mL
1000 mL Flask
- - - $163.20
CLS-DBJAWZ
30392236
Ohaus CLS-DBJAWZ Specialty Nickel-Plated Double 2-Prong Single Adjust Clamp - 0 in -- 3 in (0 mm – 76 mm)
Double 2-Prong Single Adjust Nickel plated Zinc 0 in.–3 in
0 mm–76 mm
- - 8.74 in
222 mm
- - $49.50
CLS-ELECTZ
30392242
Ohaus CLS-ELECTZ Specialty Nickel-Plated Electrode Clamp
Electrode Nickel plated Zinc - - - 7.00 in
178 mm
- - $72.90
CLS-NESTXS
30392318
Ohaus CLS-NESTXS Specialty Stainless Steel Nester Clamp - 1.97 in -- 4 in (50 mm – 102 mm)
Nester Stainless Steel 1.97 in.–4 in
50 mm–102 mm
5.98 in
152 mm
- 10.32 in
262 mm
0.39 in
10 mm
- $95.45
CLS-OPENRPL
30392348
Ohaus CLS-OPENRPL Multi-Purpose PVC Open Ring Style Clamp - 12 in (305 mm) x .43 in (11 mm) x 5 in (127 mm)
Open Ring PVC - 12 in
305 mm
- 16.81 in
427 mm
0.43 in
11 mm
5 in
127 mm
$99.60
CLS-OPENRAL
30392345
Ohaus CLS-OPENRAL Specialty Aluminum Open Ring Clamp - 2.4 in (61 mm) x 0.43 in (11 mm)  x 5 in (127 mm)
Open Ring Aluminum - 2.4 in.
61 mm
- 7.20 in
183 mm
0.43 in
11 mm
5 in
127 mm
$61.20
CLS-OPENRAM
30392344
Ohaus CLS-OPENRAM Specialty Aluminum Open Ring Clamp - 2.28 in (58 mm) x 0.35 in (9 mm) x 4 in (102 mm)
Open Ring Aluminum - 2.28 in
58 mm
- 6.22 in.
158 mm
0.35 in.
9 mm
4 in
102 mm
$49.00
CLS-OPENRPS
30392346
Ohaus CLS-OPENRPS Multi-Purpose PVC Open Ring Style Clamp - 10 in (254 mm)  x .0.35 in (9 mm) x 3 in (76 mm)
Open Ring PVC - 10 in.
254 mm
- 12.91 in
382 mm
0.35 in.
9 mm
3 in
76 mm
$72.00
CLS-OPENRPM
30392347
Ohaus CLS-OPENRPM Multi-Purpose PVC Open Ring Style Clamp - 12 in (305 mm) x .35 in (9 mm) x 4 in (102 mm)
Open Ring PVC - 12 in.
305 mm
- 15.91 in
404 mm
0.35 in.
9 mm
4 in.
102 mm
$80.10
CLS-OPENRAS
30392343
Ohaus CLS-OPENRAS Specialty Aluminum Open Ring Clamp - 2.28 in (58 mm) x 0.35 in (9 mm) x 3 in (76 mm)
Open Ring Aluminum - 2.28 in
58 mm
- 5.2 in.
132 mm
0.35 in.
9 mm
3 in
76 mm
$39.00
CLS-SPPRTB
30392237*
Ohaus CLS-SPPRTB Specialty Nickel-Plated Support Clamp - .98 in (25 mm) x 5.99 in (152.0 mm)
Support Nickel plated Zinc - - - 5.99 in
152 mm
- - $80.75
CLS-SUSPNB
30392243*
Ohaus CLS-SUSPNB Specialty Nickel-Plated Suspension Clamp - 5.39 in (137.0 mm)
Suspension Nickel plated Zinc - - - 5.39 in
137 mm
- - $40.00
CLS-WALLCZ
30392244
OhausCLS-WALLCZ Specialty Nickel-Plated 2-Prong Dual Adjust Wall Mount Clamp - 0.2 in -- 0.39 in (5 mm – 10 mm)
2-Prong Dual Adjust Wall Mount Nickel plated Zinc 0.2 in.–0.39 in
5 mm–10 mm
- - 3.15 in
80 mm
- - $40.00
CLS-THMSWZ
30392238*
Ohaus CLS-THMSWZ Specialty Nickel-Plated Thermometer Clamp - 0.24 in -- 0.32 in (6 mm – 8 mm)
Thermometer Nickel plated Zinc 0.24 in.–0.32 in.
6 mm–8 mm
- - 6.26 in
159 mm
- - $48.36
CLS-THMEXZ
30392239
Ohaus CLS-THMEXZ Specialty Nickel-Plated Thermometer Clamp - 0.24 in -- 0.47 in (6 mm – 12 mm)
Thermometer Nickel plated Zinc 0.24 in.–0.47 in.
6 mm–12 mm
5 in.
127 mm
- 8.27 in
210 mm
0.43 in
11 mm
- $45.00
CLN-AIREJ
30392367
Ohaus CLN-AIREJ Non-Electrical Nickel Plated Airejector Clamp - 140 mm x 5.51 in
Airejector Nickel plated Zinc - - - 5.51 in
140 mm
- - $111.22
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