ZGH-12 Ø12 mm Stainless Steel Optical Posts

This ZGH-12 listing offers cylindrical optical posts with a 12 mm diameter, a transverse tool hole and removable end studs for use with matching 12 mm holders. All 13 individual cards confirm body lengths from 20 to 300 mm, including an 80 mm option, and identify M6 at one end and M4 at the other. SKU identities and evidence remain specific to this listing; lengths from another listing do not define its supply range.

Lengths and models

Individual cards identify ZGH-12-20, 25, 30, 40, 50, 60, 75, 80, 100, 150, 200, 250 and 300 with the corresponding body length in millimeters. Dimension lines exclude projecting studs. Overall length with studs and length tolerances are not supplied. The 80 mm model has its own source photograph.

Interfaces and removable studs

Every individual card labels M6 at one end and M4 at the other. The series interface image shows the tapped holes with screws removed and offers one removable screw of each size. Thread pitch, tapped-hole depth, useful engagement length and screw grade are not supplied. Confirm the actual packing list for the order.

Mounting and tool hole

The application image shows installation in a 12 mm post holder. The transverse hole provides access for handling, but hole diameter, tightening torque and allowable clamping force are not supplied. Check holder fit, engagement length, overhang and component center of gravity. Length and diameter alone do not establish a load rating. Illustrated holders and mounted optical components are not included automatically.

Material and machining claims

The source identifies stainless steel and advertises CNC turning, even chamfers and burr-free surfaces without a material grade, roughness value or inspection report. Photographs show silver cylindrical bodies and end chamfers, not measured straightness, tolerances or surface performance. Multiple lengths shown together do not define a kit.

Selection checklist

Complete model and body length

12 mm holder fit

M4/M6 interfaces and engagement

Holder engagement and overhang

Quantity and supplied studs

To be confirmed

Thread pitch, hole depth and stud quantity

Material grade and surface roughness

Length and diameter tolerances, straightness

Torque, clamping force and loading