Ø25 mm Optical Post with Base

Specifications
Assembly
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Product Description
  • 303 Stainless Steel;
  • Top M4/M6 tapped holes available;
  • Top includes two Ø2 location pins for precision installation;
  • Ø6 mm lateral through-hole for installation tightening/loosening;
  • Convenient base-type design, compatible with PHC series clamping fork;
The Ø12 mm optical post with base from LBTEK is manufactured from 303 stainless steel with sandblasted and passivated surface treatment. Two types are available: one with a top M4 tapped hole and the other with an M6 tapped hole, both offering multiple length options. Except for the OP1B-12.5B4 (which features an M4 through-hole), all posts have an M6 tapped hole at the bottom. The top includes two Ø2 location pins for precise installation, while the side has a Ø6 mm through-hole allowing balldrivers to pass through for greater torque when tightening components. Beyond standard optical posts, LBTEK also offers customerization for special surface treatments, lengths, sizes. For specific requirements, please contact LBTEK Clientele Service.
Attribute
Material303 Stainless Steel
Outer diameterØ25 mm
Surface treatmentSandblasting + Passivation
Thread hole specificationsM4/M6
Ø25 mm Optical Post with Base (M6 tapped hole at the top)
  • Top and bottom M6 tapped holes;
  • Ø6 mm through-hole;
  • Length options range from 20 mm to 300 mm;
  • One M6×16 socket set screw is included;

The optical post with base from LBTEK is manufactured from non-magnetic 303 stainless steel with sandblasted and passivated surface treatment. All posts feature an M6 tapped hole at the top and the bottom. Two Ø2 location pins at the top ensure precise installation, while a Ø6mm lateral through-hole enables greater torque during components tightening. The purchase comes with one M6×16 socket set screw.

Ø6 mm lateral through-hole for installation tightening/loosening

Product Model
Outer diameter
Length
Top threaded hole specifications
Unit Price
Compare
Lead Time
OP1B-85B6 Ø25 mm85 mmM6$17.396 weeks
OP1B-80B6 Ø25 mm80 mmM6$176 weeks
OP1B-70B6 Ø25 mm70 mmM6$15.956 weeks
OP1B-60B6 Ø25 mm60 mmM6$15.436 weeks
OP1B-55B6 Ø25 mm55 mmM6$14.646 weeks
OP1B-45B6 Ø25 mm45 mmM6$12.946 weeks
OP1B-40B6 Ø25 mm40 mmM6$12.556 weeks
OP1B-30B6 Ø25 mm30 mmM6$10.466 weeks
OP1B-20B6 Ø25 mm20 mmM6$8.56 weeks
OP1B-38B6 Ø25 mm38 mmM6$12.425 weeks
OP1B-25B6 Ø25 mm25 mmM6$9.545 weeks
OP1B-50B6 Ø25 mm50 mmM6$13.995 weeks
OP1B-75B6 Ø25 mm75 mmM6$16.875 weeks
OP1B-300B6 Ø25 mm300 mmM6$73.615 weeks
OP1B-200B6 Ø25 mm200 mmM6$47.075 weeks
OP1B-100B6 Ø25 mm100 mmM6$18.35 weeks
Ø25 mm Optical Post with Base (M4 tapped hole at the top)
  • Top M4 tapped hole, bottom M6 tapped hole (OP1B-12.5B4 features M4 through- hole);
  • Length over 20 mm with Ø6 mm through-hole;
  • Length options range from 12.5 mm to 300 mm;
  • One M4×12 socket set screw is included;

The optical post with base from LBTEK is manufactured from non-magnetic 303 stainless steel with sandblasted and passivated surface treatment. Except for the OP1B-12.5B4, all posts feature an M6 tapped hole at the bottom and an M4 tapped hole at the top. Two Ø2 location pins at the top ensure precise installation, while a Ø6mm lateral through-hole enables greater torque during components tightening. The purchase comes with one M4×12 socket set screw.

Ø6 mm lateral through-hole for installation tightening/loosening

Product Model
Outer diameter
Length
Top threaded hole specifications
Unit Price
Compare
Lead Time
OP1B-150B4 Ø25 mm150 mmM4$24.455 weeks
OP1B-85B4 Ø25 mm85 mmM4$17.396 weeks
OP1B-80B4 Ø25 mm80 mmM4$176 weeks
OP1B-70B4 Ø25 mm70 mmM4$15.956 weeks
OP1B-60B4 Ø25 mm60 mmM4$15.436 weeks
OP1B-55B4 Ø25 mm55 mmM4$14.646 weeks
OP1B-45B4 Ø25 mm45 mmM4$12.946 weeks
OP1B-40B4 Ø25 mm40 mmM4$12.556 weeks
OP1B-30B4 Ø25 mm30 mmM4$10.466 weeks
OP1B-20B4 Ø25 mm20 mmM4$8.56 weeks
OP1B-12.5B4 Ø25 mm12.5 mmM4$6.675 weeks
OP1B-38B4 Ø25 mm38 mmM4$12.425 weeks
OP1B-25B4 Ø25 mm25 mmM4$9.545 weeks
OP1B-50B4 Ø25 mm50 mmM4$13.995 weeks
OP1B-75B4 Ø25 mm75 mmM4$16.875 weeks
OP1B-300B4 Ø25 mm300 mmM4$75.055 weeks
OP1B-200B4 Ø25 mm200 mmM4$46.155 weeks
OP1B-100B4 Ø25 mm100 mmM4$18.35 weeks
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