Fastener Testing directly
affects everyone on of us on a daily basis. The
cars we drive, the planes in which we fly, and the tools we use to do our work all
have nuts, bolts, and fasteners of some kind. And these are but a few
of the examples of the way fasteners affect our daily lives. Our Fatigue Department is involved with a
diverse array of fastener tests such as: fatigue tensile, wedge tensile, double
shear, stress rupture, stress durability, microstructure and chemical analysis.
The laboratories at WMT&R meet all the requirements of the Fastener Quality Act and its Amendments.
Some of the Fastener Testing
specifications tested to at WMT&R:
Standard test method 5 to determine Hydrogen Embrittlement (stress
durability) of internally threaded fasteners.
NASM1312-8 (Replaces MIL-STD-1312-8)
test method to determine tensile strength of externally and internally threaded
NASM1312-11 (Replaces MIL-STD-1312-11)
Standard test method for determining tension fatigue of bolts, screws and nuts
at room temperature.
NASM1312-12 (Replaces MIL-STD-1312-12)
method for determining thickness of metallic coatings
NASM1312-10 (Replaces MIL-STD-1312-10)
Standard test method 10 Stress-Rupture.
NASM1312-15 (Replaces MIL-STD-1312-15)
Standard test method for determining
the room temperature torque-tension relationship for threaded fasteners.
NASM1312-20 Replaces MIL-STD-1312-20)
Standard test method to define the
procedures and apparatus for testing fasteners in single shear.
NASM1312-28 (Replaces MIL-STD-1312-28)
Standard test procedure to determine
double shear strength, at elevated temperatures, for all types of structural
NASM1312-31 (Replaces MIL-STD-1312-31)
Standard test method for torque
testing threaded fasteners.
Tension Testing per ASTM A574
Fatigue Testing per:
MIL-S-5000 REV. E
Standard test method to determine the
mechanical properties of externally and internally threaded washers and rivets.
method to determine the mechanical properties of externally and internally
threaded washers and rivets (Metric).
WMT&R will also tests to unique customer