MIL-DTL-45449C
3.10 Metal fasteners.
3.10.1 Corner irons. Corner irons fastened to the ends of skids and top surface of deck
boards shall be at least six inches long and one inch wide. Hot or cold rolled commercial type
steel or galvanized sheet steel, 15 or 16 gage, shall be used. The iron shall not protrude into a
retainer hole and at least two nails shall be used to fasten each leg of the iron to the pallet, unless
otherwise specified on the applicable drawing (See 6.10).
3.10.2 Corner clips. When specified on the applicable drawing (See 6.10), corner
clips shall comply with the requirements of Drawing 7548605, or commercial type equivalent.
The clips shall be fastened to the pallet with not less than two 4dcc nails through each leg, unless
otherwise specified on the applicable drawing (See 6.10).
3.11 U-Bolt. When required within a specified pallet, U-Bolt requirements shall be in
conformance with 13029014. When jointly hoisted and mounted to a pallet, the bolts shall
withstand an applied load of 3600 lbs.
3.12 Construction. Grade A and Grade B pallets shall be dimensionally square and
accurately formed. Holes shall be drilled clean and, unless otherwise specified, a plus or minus
1/16 inch tolerance on the diameter of the hole shall be permitted. A plus or minus 1/8 inch
tolerance shall be permitted on all overall pallet dimensions except where minimum dimensions
are specified. Deck boards and cleats shall not extend beyond the ends of the skids more than 1/8
inch. Cleats shall be flush with the ends or edges of the cover or base assembly. Pieces showing
wane shall be positioned with the wane edge down.
3.12.1 Surfacing. Lumber shall be finished or dressed on two sides. Edges shall be
straight and square with the surface of the lumber. Unless otherwise specified on applicable
drawings (See 6.10), lumber may be finished on one side and resawn on the other side. The
finished surface of resawn lumber shall always face the upper surface of the assembled pallet.
The combined surface shall be level and comply with the requirements of paragraph 3.5 for
thickness of individual pieces.
3.13 Preservative treatment. Grade A pallets, individual or the finished wood parts
thereof, shall be completely immersed for a minimum of one minute in one of the following
wood preservative solutions listed below:
a. PQ56 (Copper-8-quinolinolate) reduced (diluted) with water down to a solution of
1.8% copper (as a metal) by volume in water (See 6.14). (This compound is also known as oxine
copper.)
b. An emulsion of M-GARD W550 (Zinc naphthenate) reduced (diluted) with water
down to a solution of 3% zinc (as a metal) by volume in water (See 6.14).
c. An emulsion of M-GARD W510 (Copper naphthenate) reduced (diluted) with water
down to a solution of 2% copper (as a metal) by volume in water (See 6.14).
d. A solution of Cunapsol 5 (Copper napthenate) reduced down with water to 2 percent
copper as metal (See 6.14).
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