MIXTURE OF INCH AND METRIC FASTENERS:

TM 5-3815-223-14&P

b. To help mechanics know when metric fasteners are used on a product, future service publications such as

parts books and operation/maintenance manuals will use a notice similar to the one that follows:

NOTICE

CAUTION MUST BE TAKEN TO AVOID MIXING METRIC AND INCH (CUSTOMARY) FASTENERS. MISMATCHED

OR INCORRECT FASTENERS CAN RESULT IN EQUIPMENT DAMAGE OR MALFUNCTION, OR POSSIBLE

PERSONAL INJURY. ORIGINAL FASTENERS REMOVED FROM THE VEHICLE SHOULD BE SAVED FOR

ASSEMBLY WHEN POSSIBLE. IF NEW FASTENERS ARE REQUIRED, CAUTION MUST BE TAKEN TO REPLACE

THE FASTENER WITH ONE THAT IS OF THE SAME SPECIFICATIONS (SIZE/GRADE) AS THE ORIGINAL.

c. To convert inches to millimeters, or millimeters to inches, see The Metric System And Equilavents (inside back

cover).

B-4