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ISO 9001:2015Made in INDIA

12.7 mm Post System


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Post Holders
PH Series
A variety of post heights Available
Suitable for 12mm diameter post
Prices are exclusive of taxes and other charges.

PH series post holders have a square relief cut for stable three point line contact with post and post holder. Spring loaded plunger knob is provided with every post holder for smooth up and down movement and stable tightening at desired position.

We can fix post holder to an optical table , base plate or a pedestal adapter by using M6 mounting hole provided at the bottom of the post holder.


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12.7 mm post holder Metric mounting hole

Model No Length ( mm ) Price
PHN20 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 20 mm with M6 tap
PHN30 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 30 mm with M6 tap
PHN40 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 40 mm with M6 tap
PHN50 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 50 mm with M6 tap
PHN75 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 75 mm with M6 tap
PHN100 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 100 mm with M6 tap
PHN150 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 150 mm with M6 tap

12.7 mm post holder Imperial mounting hole

Model No Length ( mm ) Price
PHNT20 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 20 mm with 1/4-20 tap
PHNT30 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 30 mm with 1/4-20 tap
PHNT40 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 40 mm with 1/4-20 tap
PHNT50 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 50 mm with 1/4-20 tap
PHNT75 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 75 mm with 1/4-20 tap
PHNT100 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 100 mm with 1/4-20 tap
PHNT150 12.7 mm inner & 25 mm outer dia, aluminium black anodised, length 150 mm with 1/4-20 tap
Plunger knobe
Price :

Model    :    PGK-20

Plunger knobeis a brass plunger, loaded with a suitable spring, inside M6 stud. This plunger knob prevents posts from sudden falling while loosening the knob for removing the post or adjusting height in an optical set up. Only one hand is required for any operation using post and post holder.
# one set contains 10 nos.

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Established in 1993, Holmarc Opto-Mechatronics Ltd manufactures variety of scientific and engineering instruments for research, industry and education.

ISO 9001:2015 Made in INDIA

CIN : L33125KL1993PLC006984
GST No : 32AAACH9492C1ZQ

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    B.7., H.M.T. Industrial Estate H.M.T. P.O, Kalamassery, Kochi Kerala, India - 683 503
   +91 920-719-7772 / 6 / 1
   sales@holmarc.com
   Mon - Sat : 9 am to 5 pm
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