Ø12 mm Optical Post with Base

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Product Description
  • Top M4/M3 tapped holes, bottom M6 tapped holes;
  • Ø2.4 mm lateral through-holes for installation tightening/loosening;
  • Base-type design, compatible with LBTEK PHA-series mini clamping forks
The Ø12mm optical post with base from LBTEK is manufactured from 303 stainless steel, primarily used to connect optical component mounts. It features M3/M4 tapped holes at the top and an M6 tapped hole at the bottom, allowing integration with various optomechanics. The base-type design enables fixation to optical tables or breadboards when used with clamping forks. A lateral Ø2.4mm through-hole facilitates convenient installation. Beyond standard optical posts, LBTEK also offers customerization for special surface treatments, lengths, sizes. For specific requirements, please contact LBTEK Technical Support.
Attribute
Material303 Stainless Steel
Outer diameterØ12 mm
Surface treatmentSandblasting + Passivation
Through-hole diameterØ2.4 mm
Ø12 mm Optical Post with Base (M4 tapped hole at the top)
  • 303 stainless steel with sandblasting and passivation surface treatment
  • M4 tapped hole at the top and M6 tapped hole at the bottom
  • Side Ø2.4 mm through-hole

The Ø12mm optical post with base from LBTEK features an M4 tapped hole at the top, equipped with a removable M4×12 stud, compatible with most optical component mounts. The base-mounted design incorporates an M6 tapped hole at the bottom, compatible with LBTEK PHA-16S mini clamping fork for rapid fixation on optical tables or breadboards. A Ø2.4 mm through-hole on the post is provided to enhance torque during component tightening. The purchase comes with one M4×12 socket set screw. Available in 5-piece packages.

The OP1A-20B4 is often used in conjunction with the PHA-16S mini clamping fork.

Product Model
Outer diameter
Length
Quantity
Unit Price
Compare
Lead Time
OP1A-50B4-P5 Ø12 mm50 mm5 pieces$57.92today
OP1A-50B4 Ø12 mm50 mm1 piece$12.68today
OP1A-38B4-P5 Ø12 mm38 mm5 pieces$54.13today
OP1A-38B4 Ø12 mm38 mm1 piece$11.24today
OP1A-25B4-P5 Ø12 mm25 mm5 pieces$47.72today
OP1A-25B4 Ø12 mm25 mm1 piece$9.94today
OP1A-20B4-P5 Ø12 mm20 mm5 pieces$35.82today
OP1A-20B4 Ø12 mm20 mm1 piece$7.98today
Mini Clamping Fork
  • Compatible with Ø12 mm optical post with base series;
  • Waist-type slot length: 16 mm;
  • Clamping diameter: 14.2 mm;
  • 5-piece package available;

The mini clamping fork from LBTEK has a clamping diameter of Ø14.2 mm and is typically used with Ø12 mm optical posts with base or Ø6 mm flexible post holders. Its three-point contact provides stable clamping force, and the integrated design ensures high rigidity. The PHA-16B3 and PHA-16B4 are constructed from black-anodized 6061-T6 aluminum alloy, while the PHA-16S is fabricated from precipitation-hardened 316L stainless steel to deliver uniform clamping force. The PHA-16B3, PHA-16B4, and PHA-16S are compatible with M3, M4, and M6 socket head cap screws respectively. The 16 mm waist-shaped slot enables 360° rotation around the base for convenient selection of mounting holes. Each clamping fork includes a spacer on the bottom surface to enhance stability when securing posts or post holders with corresponding socket head cap screws. Note: Applying excessive tightening force may induce surface deformation on optical tables, potentially resulting in component misalignment and stability degradation.

The PHA series clamping forks are suitable for fixing Ø12 mm optical posts with bases.

Product Model
Waist groove length
Quantity
Unit Price
Compare
Lead Time
PHA-16S 16 mm1$6.41today
PHA-16S-P5 16 mm5$30.07today
PHA-16B3 16 mm1 piece$13.2today
PHA-16B3-P5 16 mm5 pieces$63.41today
PHA-16B4 16 mm1 piece$12.81today
PHA-16B4-P5 16 mm5 pieces$63.41today
Ø12 mm Optical Post with Base (M3 tapped hole at the top)
  • 303 stainless steel with sandblasting and passivation surface treatment;
  • M3 tapped hole at the top and M6 tapped hole at the bottom;
  • Side Ø2.4 mm through-hole;

The Ø12mm optical post with base from LBTEK features an M3 tapped hole at the top, equipped with a removable M3×8 stud, compatible with most optical component mounts. The base-mounted design incorporates an M6 tapped hole at the bottom, compatible with LBTEK PHA-16S mini clamping fork for rapid fixation on optical tables or breadboards. A Ø2.4 mm through-hole on the post is provided to enhance torque during component tightening. The purchase comewith one M3×8 socket set screw. Available in 5-piece packages.

The OP1A-XXB3 series and PHA-16S are paired for application to 16 mm coaxial optical systems.

Product Model
Outer diameter
Length
Quantity
Unit Price
Compare
Lead Time
OP1A-50B3-P5 Ø12 mm50 mm5 pieces$57.92today
OP1A-50B3 Ø12 mm50 mm1 piece$12.81today
OP1A-38B3-P5 Ø12 mm38 mm5 pieces$54.13today
OP1A-38B3 Ø12 mm38 mm1 piece$11.37today
OP1A-25B3-P5 Ø12 mm25 mm5 pieces$47.72today
OP1A-25B3 Ø12 mm25 mm1 piece$10.07today
OP1A-20B3-P5 Ø12 mm20 mm5 pieces$35.69today
OP1A-20B3 Ø12 mm20 mm1 piece$7.58today
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