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Wedge Tensile

Wedge Tensile Fastener Testing

A Wedge tensile test is an axial test, except that a wedge is placed under the head during the testing. This wedge tensile test is typically done on hex or square head fastener and socket head cap screws. This test is to see if the head of the fastener is capable of sustaining the added stress of the wedge.

Fastener testing allows you to determine the mechanical properties of externally and internally threaded fasteners, washers, direct tension indicators, and rivets. Testing may consist of a machined specimen or a full-size product. The type of fastener testing that will be described below applies to a full-size product testing. Fastener testing is not applicable to all. The head design, shank thickness, and product length can determine if the testing is required of the product.

Test Method Material and Property Requirements

The following is a listing of specifications that are in accordance with our A2LA and ISO accreditation. Please contact us for more information.

ASTM
F606/F606M
Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
ISO 898-1Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread
ISO 898-2Fasteners — Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with specified property classes
SAE J995Mechanical and Material Requirements for Steel Nuts
SAE J429Mechanical and Quality Requirements for Externally Threaded Fasteners
SAE J1199Mechanical and Material Requirements for Metric Externally Threaded Steel Fasteners(STABILIZED Feb 2013)

Wedge Tensile Test Methods and Specifications

The following is a listing of specifications that are in accordance with our A2LA and ISO accreditation. Please contact us for more information.

ASTM B557Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
ASTM E8Standard Test Methods for Tension Testing of Metallic Materials
ASTM F606Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
SAE EN J429Mechanical and Quality Requirements for Externally Threaded Fasteners
SAE J995Mechanical and Material Requirements for Steel Nuts
SAE J1199Mechanical and Material Requirements for Metric Externally Threaded Steel Fasteners(STABILIZED Feb 2013)
SAE J1216Test Methods for Metric Threaded Fasteners(Cancelled Jul 1999)
EN 10002-1Metallic Materials – Tensile Testing – Part 1: Method of Test at Ambient Temperature
EN 10002-2Tensile Testing of Metallic Materials Part 2: Verification of the Force Measuring System of the Tensile Testing Machine
ISO 6892-1Metallic materials — Tensile testing — Part 1: Method of test at room temperature