The double shear fixture is made of a high strength tool steel to accommodate the high stress involved in a double shear test. It is a compression type fixture, consisting of a mandrel and an anvil, both with U-shaped cutouts. The anvil supports the fastener during the test and the mandrel applies the compressive force. The mandrel and anvil of the fixture are precision machined as a matched set for a specific size fastener. A separate fixture must be purchased for each size fastener being tested.

The single shear fixture is made of a ultra high-strength, heat treated alloy steel for durability. It is a tension type fixture using a closed hole design to capture the fastener. This design requires a nut to be used on the bolt or stud being tested to prevent the fixture from separating. A separate fixture must be purchased for each size fastener being tested.