with water-borne salts. Specify protection ranging
from simple coatings to changing of the hardware
metals dependent upon the required use and critical
features of the hardware. Hot-dip galvanized
hardware and fasteners will usually suffice in such
cases.
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Bolts with necessary nuts and washers, timber connectors, drift pins,
dowels, nails, screws, spikes, and other fastenings. Bolts and nuts shall
conform to ASTM A 307. Provide cast-iron ogee, malleable iron washers, or
plate or cut washers where indicated. Provide bolts with washers under nut
and head. Provide timber connectors and other metal fastenings of type and
size shown. Hot-dip galvanize [hardware] [_____].
2.1.2.1
Wire Rope and Fittings
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NOTE: Give special attention to corrosion
protection of hardware used with timber preserved
with water-borne salts. Specify protection ranging
from simple coatings to changing of the hardware
metals dependent upon the required use and critical
features of the hardware. Hot-dip galvanized
hardware and fasteners will usually suffice in such
cases.
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FS RR-W-410, [Type I, Class 2] [Type III, Class 2 or 3]. Provide staples of
10 mm 0.375 inch diameter zinc-coated steel at least 125 mm 5 inches long.
Provide clips or clamps of zinc-coated steel.
2.1.2.2
Zinc-Coating
Galvanize steel specified or indicated by the hot-dip process in accordance
with ASTM A 123/A 123M or ASTM A 153/A 153M, as applicable.
PART 3
EXECUTION
3.1
CONSTRUCTION
Cut, bevel, and face timbers prior to plant preservative treatment. In
addition to the contract clause entitled "Accident Prevention" provide
protective equipment for personnel fabricating, field treating, or handling
materials treated with creosote or water-borne salts. Refer to paragraph
entitled "MSDS and CIS."
3.1.1
Cut and frame lumber and timber so that joints will fit over contact
surface. Secure timbers and piles in alignment. Open joints are
unacceptable. Shimming is not allowed. Bore holes for drift pins and
dowels with a bit 2 mm 1/16 inch less in diameter than the pin or dowel.
Bore holes for truss rods or bolts with a bit 2 mm 1/16 inchlarger in
diameter than rod or bolt. Bore holes for lag screws in two parts. Make
lead hole for shank the same diameter as shank. Make lead hole for the
threaded portion approximately two-thirds of the shank diameter. Bore
holes in small timbers for boat or wire spikes with a bit of the same
diameter or smallest dimension of the spike to prevent splitting.
SECTION 02398
Page 8
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