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Barnhart Bolt & Special Fasteners, Inc.
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Technical Reference Material

ASTM A193 Grade B7 - UNC (Torque Guide)
ASTM A307
ASTM A354 Grade BD
ASTM 449 and ASTM A490
ASTM Specifications
Black Oxide Taps and Dies
Bolt Grade Markings and Strength Chart
Bolt Strength Requirements by Grade
Butterfly Valves
Finished Hex Nuts
Flat Washers
ASTM Grade and Material Identification Markings
H-13 Flange Bolting
Heavy Hex Nuts
Imperial vs. Metric Technical Guide
Proof Load Tensile Strength for Grade 2, 5, 8
SAE Grade 2 and ASTM A325
Tap and Drill Bit Selection Guide
Tap End Note Sheet
Thread Pitch Chart
Stud Weight Chart
bolts and special fasteners in midland, odessa, and hobbs
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  • P.O. Box 69085
    Odessa, TX 79769
  • (432) 550-0744
  • (432) 362-2548
  • sales@barnhartbolt.com
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