Gibraltar 23040.0083 Unequal Double Threaded Stud M8 X 1.25

Product Description

The GIBRALTAR 23040.0083 is an unequal double threaded stud made from heat-treated alloy steel, rated at material grade 10.9. It features two threaded ends of different lengths on a single shank, allowing it to thread into a fixed base on one end while accepting a nut or mating component on the other. The overall length is 100 mm, with a long thread length of 63 mm, a short thread length of 11 mm, and an unthreaded shank section of 26 mm. Thread size is M8 x 1.25 and the thread fit class is DIN 787. Machinists, millwrights, and mechanical assembly technicians install these studs in production and maintenance applications.

This stud is suited for industrial machinery, equipment assembly, and structural fastening applications where a permanent or semi-permanent threaded anchor point is required. The unequal thread lengths allow one end to be driven into a tapped hole in a base component while the exposed end accepts clamping hardware. Common use cases include machine frames, fixtures, and mechanical sub-assemblies requiring a reliable threaded connection in alloy steel construction.

Key Features

• Unequal double threaded design: 63 mm long thread end and 11 mm short thread end
• M8 x 1.25 thread size conforming to DIN 787 thread fit class
• Heat-treated alloy steel construction at material grade 10.9 for high tensile strength
• 26 mm unthreaded shank between thread sections
• No flat — round shank profile for standard installation
• Compact overall length of 100 mm suitable for tight assembly envelopes

Compatibility

Designed for use in tapped holes accepting M8 x 1.25 metric threads per DIN 787 specifications. Suitable for general industrial machinery, mechanical fixtures, and equipment assemblies requiring a grade 10.9 alloy steel threaded stud.

Installation Notes

Installation is typically performed by machinists or mechanical maintenance technicians using a stud driver or double-nut method to drive the short thread end into a pre-tapped base hole. Ensure the receiving tapped hole is clean, free of debris, and sized to the correct M8 x 1.25 tolerance before installation. Apply appropriate thread-locking compound or torque per the equipment manufacturer's specification for the application. Do not overtighten the short drive end, as this can damage the base material threads or the stud itself.