DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
INSPECTION, USE AND TIGHTENING OF METAL
FASTENERS USED ON
TANK-AUTOMOTIVE EQUIPMENT
HEADQUARTERS, DEPARTMENT OF THE ARMY
REPORTING OF ERRORS
You can improve this bulletin. If you find any mistakes or if you know of any way to improve the procedures,
please let us know. Mail your letter or DA Form 2028 (Recommended Changes to Publications and Blank
Forms) or DA Form 2028-2 directly to: Commander, US Army Tank-Automotive Command, ATTN: AMSTA-
MB, Warren Michigan, 48397-5000. A reply will be furnished to you.
SECTION
PARAGRAPH
PAGE
INTRODUCTION
Purpose
Scope
METAL FASTENERS
Fastener Size and Thread Pattern
Fastener Grade
INSPECTION AND USE
Inspection and Use
TIGHTENING METAL FASTENERS
Torque Wrenches
Installation and Torquing
TORQUE LIMITS
General
Torque Limits
How To Use Torque Table
SECTION I. INTRODUCTION
1. Purpose. This bulletin was developed as a result of the heightened interest in the inspection, use and tightening of
metal fasteners. It includes selection and use of torque wrenches. The information contained in this bulletin will be
incorporated into new technical manuals as they are developed and into existing manuals as they are revised.
2. Scope. This bulletin applies to metal fasteners that are inspected or used in maintenance operations.
Approved for public release; distribution is unlimited.
11 March 1991
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