DOING WHATEVER IT TAKES

Quality

Uncompromising Quality & Certifications

At U.S. Bolt Manufacturing, quality is the foundation of everything we do. Our rigorous processes ensure that every fastener meets the highest industry standards, delivering exceptional strength, reliability, and performance in critical applications. We are proud to hold industry-recognized certifications that validate our commitment to excellence. These certifications reflect our dedication to precision manufacturing, compliance with stringent specifications, and continuous improvement.

TESTING PROCEDURES

Explore our testing capabilities

Tensile Testing

120K lb. Universal Tester – Standard Specimens

400K lb. Full-Size Universal Tester – Full Size Testing (Axial Test, Wedge Test, & Proof Load)

Charpy Impact Testing

Subzero (-150 F)

Micro-Hardness Testing

Vickers and Knoop scales
Hardness Testing

Rockwell – Six Testing Machines (HRC & HRB Scales)

Brinell (HBW)

Dimensional Inspection

Micrometers, Calipers (up to 80” length), Height Gages, two Optical Comparators, pin / form gages, & various metrology equipment.

Positive Material Identification (PMI)

Two Olympus Vanta VLW XRF Analyzers

Keyence IM Automatic Instant Measuring Systems
Versamet Metallograph

Microstructure & Banding Evaluations

Grain Size

Cleanliness / Inclusion Content

Carburization/Decarburization Analysis

Macrostructure Analysis

Grain Flow Analysis

Optical Emission Spectroscopy (Chemical Overcheck) Analysis
Ultrasonic Inspection

Three Sonatest Prisma Phased Array / Ultrasonic Testers

Manufacture & Custom Ultrasonic reference blocks

Straight Beam & Angle Beam Examinations
Wet Magnetic Particle Inspection

Two Gould-Bass Magne-Tech® 3500 series Horizontal WMPI Units

Liquid Penetrant Inspection

Visible Fluorescent

Visual Inspection
Gagemaker MIC TRAC™ 4000

In-house calibration of thread gages (setting plugs, plug gages, & ring gages)

Calibration accuracies of ± .00005” and a resolution of .00001”

Gagemaker MIC TRAC™ 3000

In-house calibration of calipers & gage blocks

Calibration accuracies of ± .0001” and a resolution of .00005”

In-house manufacturing, verification, and calibration of custom gages
In-house Zinc-Nickel Plating Composition & Thickness testing

Fischer Fischerscope X-Ray XAN 500 Scanner

In-house Coating Adhesion Testing

Defelsko PosiTest® AT-A

Dry & Wet Film Thickness Testing

OUR LABORATORY

U.S. Bolt Manufacturing +
WN Global Laboratory

In collaboration with our parent company, U.S. Bolt Manufacturing has exclusive access to in-house A2LA 17025 accredited laboratory capabilities through the WN Global Laboratory.