Shoulder Grip Fixtures for Pull-Off and Component Strength Testing

Description

Shoulder grip fixtures are used for testing specimens that have an enlarged head, flange, or formed end that cannot be held with standard jaw clamps. These fixtures support pull-off, push-out, and component strength evaluations where force must be applied through the shoulder of the part to reflect how it is used in service.

Typical applications include bolt head retention tests, cable termination pull tests, syringe plunger withdrawal tests, mechanical anchors, buttons, bottle caps, and fastener hold strength assessments. The specimen is supported by a recessed ledge or collar, while the axial load is applied from the testing machine.

These fixtures are used in medical device testing, automotive and mechanical component assessment, packaging evaluation, and construction anchoring validation. They help distribute the load across the shoulder region to reduce bending and maintain alignment. The fixtures are produced in multiple sizes and configurations to meet ASTM, ISO, and related test procedures.

View full specifications →