MIL-DTL-46506E
Table II. Length of Staples per Thickness of Boards
Thickness of boards
Length and Gage of Staples
or combined
In boards only
In boards, over wire
thickness of boards,
Length,
Gage
Length, Gage
cleats or battens
inches
inches
(inches)
3/8
1/2
18
9/16
18
3/4 (2 ply 3/8)
7/8
18
1
18
1 1/8 to 1 3/8
1.25
16 1/
1.25
16 1/
Notes:
1/ 1 1/8 length 16 gage permissible into Group IV wood cleats.
3.12.2 Staple spacing. Staples shall be driven at spacing not to exceed 1.75 inches. When the
length of the cleats requires interruption of the nominal spacing, this interrupted space shall not exceed
2.5 inches. The minimum number of staples in any cleat shall be three. At each corner of the box, the
distance from the end of the cleat to the nearest staple shall not be greater than 1 5/8 inches. Staples in
ends shall be driven at a spacing not to exceed 1.75 inches and two staples through ropes as shown in
Figure 1.
3.13 Nails. Nails shall be cement coated or chemically etched cooler, sinker or box type
complying with ASTM F1667. Uncoated nails shall be used in nailing end boards to battens when the
nails pass through the boards and battens and are clinched.
3.13.1 Size and spacing of nails. The size of nails when used for fastening end boards to end
battens shall be 4 penny, 1 3/8 inch long driven at an average spacing of 1.5 inches. Staples used to fasten
end boards to end battens shall comply with 3.12.
3.13.2 Rope handle attachment. For attachment of rope handles, see Figure 1. Deviation from the
nail or staple pattern shall be cause for rejection.
3.14 Box assembly inside dimensions. Inside dimensions shall be specified to the nearest 1/16
inch and shall have a tolerance of +1/8 inch. Compliance with inside dimensions specified on drawings or
in contracts or orders shall be determined on the box assembled as shown in Figure 8A (see 6.5).
3.15 Fabrication.
3.15.1 Wood parts. All parts of the box shall be cut square to size. The grain of wood on top,
bottom and sides shall run lengthwise with the box. Grain of wood in end boards shall run parallel to the
top and bottom cleats. Cleats shall be flush with the ends of the faceboards. Top and bottom boards shall
completely cover the edges of the side boards with a tolerance of minus 1/8 inch on each side. The
maximum allowable gap between faceboards due to mis-manufacture or shrinkage shall not be greater
than 1/4 inch.
3.15.2 Metal parts. Nails or staples not over wire shall be driven so that neither the head nor the
point shall project above the surface of the wood. Occasional overdriving of nails shall be permitted but
none shall be overdriven more than 1/8 the thickness of the piece. Clinched fasteners shall be flush or
below the surface of the container. Fasteners shall be clinched in the thicker board.
3.15.3 Wires. The end of wires forming the loop closures shall be driven through the faceboard
and tightly clinched against the inside surface of the faceboard.
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