Granite Surface Plate Threaded Inserts

Eley metrology has been providing granite surface plates and tables to industry for over 40 years.

Granite surface plate threaded inserts.

Starrett granite surface plate calibration calibration of granite surface plates granite parallels 2 and 4 sided granite straight edges granite tri squares granite. Out of these ten in nine cases the granite fractured first. Threaded inserts are used to repair stripped threads in plugs and other parts or to create a new threads in a hole for fastening applications. Out of these ten in nine cases the granite fractured first.

Diy method to put threaded inserts in granite. They can also be used to convert a standard threaded hole to accept metric fasteners and vice versa. In a recent test using 3 8 16 threaded inserts an independent testing laboratory measured the force required to pull an epoxy bonded insert from a surface plate. Ten plates were tested.

Inserts for stone and composites inserts for stone and composites our self anchoring is a press in threaded insert that utilises a mechanical anchoring feature to provide permanent threads in panels made of marble granite or other stones as well as composites carbon corian hpl glass and other solid surface materials. Thread repair inserts are installed into an existing hole with an installation tool to repair stripped. The recommended method for using inserts in a metrology grade granite surface table. Accuracy specifications starrett granite surface plates meet or exceed u s.

After reaching the desired depth the cores were removed by tapping and the inserts. Threaded metal inserts may be installed in the surface. Our standard and custom metrology components include master squares master angles parallels and straight edges. For mounting points we offer threaded inserts on position dovetails in the granite or inserted steel bars with t slots.

The standard aisi303 stainless steel threaded inserts according to the table are applied with epoxy resin on surfaces for component fixing on the granite structure and tested for traction resistance. In a recent test using 3 8 16 threaded inserts an independent testing laboratory measured the force required to pull a epoxy bonded insert from a surface plate. The average load at the point of failure was 10 020 lbs for gray granite and 12 310 lbs for black. All our surface plates meet or exceed asme standard b89 3 7 2013 and federal specification ggg p 463c.