Gibraltar 23040.0081 Unequal Double Threaded Stud M8x1.25

Product Description

The GIBRALTAR 23040.0081 is an unequal double threaded stud designed for industrial fastening applications where two different thread engagement lengths are required on a single fastener. Manufactured from alloy steel with a heat-treated finish and a material grade of 10.9, this stud delivers high tensile strength suitable for demanding mechanical assemblies. The overall length is 40 millimeters, with a long thread length of 20 millimeters, a short thread length of 11 millimeters, and an unthreaded shank section of 9 millimeters. Thread size is M8 x 1.25 and thread fit conforms to DIN 787 class standards. Machinists, maintenance technicians, and industrial assembly professionals are the primary installers of this fastener type.

This stud is suited for use in machinery, equipment frames, and structural assemblies where one end threads permanently into a tapped housing or component and the opposing end accepts a nut for removable fastening. The unequal thread design allows the longer thread end to be set into a base material while the shorter thread end provides a secure clamping point. Typical applications include machine tool mounting, fixture building, and mechanical equipment maintenance across light and heavy industrial environments.

Key Features

• Alloy steel construction with heat-treated finish for high tensile strength
• Material grade 10.9 for heavy-duty fastening applications
• Unequal thread lengths: 20 mm long end and 11 mm short end on a 40 mm OAL stud
• 9 mm unthreaded shank section between thread zones
• M8 x 1.25 thread size conforming to DIN 787 thread fit class
• No flat, allowing for standard installation into tapped bores

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for industrial machinery and equipment assemblies requiring M8 x 1.25 double-end threaded studs conforming to DIN 787 specifications.

Installation Notes

Installation of double threaded studs into tapped components is typically performed by maintenance technicians or machinists using a stud driver or double-nut method. Ensure the receiving tapped hole is clean and free of debris before threading the long end into the base material. Do not exceed the rated torque for the M8 grade 10.9 thread specification as published in applicable fastener standards. Follow all applicable workplace safety and machinery lockout procedures before servicing equipment requiring stud replacement.