Mailbox Posts and Mounting Hardware
818.1Mailbox Post and Mounting Hardware
1 Ensure the provision and use of mailbox posts and mounting hardware in accordance with Table 818.1-1, Mailbox Post and Hardware Mounting Requirements.
Table 818.1-1 Mailbox Post and Hardware Mounting Requirements Item Size Material Type Surface Finish U-Bolt Clamps Commercial Hardware Commercial ASTM A 153 [ASTM A 153M], ASTM A 275 [ASTM A 275M] Single, double, multiple supports 2 in [50 mm] OD 14 gage ASTM A 513 ASTM A 275 [ASTM A 275M], ASTM A 653 [ASTM A 653M], ASTM A 924 [ASTM A 924M] Socket 12 gage ASTM A 569 M Dip-coated with rust-inhibiting primer; Fed Spec TT-P-636 Wedge 12 gage ASTM A 569 M ASTM A 275 [ASTM A 275M], ASTM A 653 [ASTM A 653M], ASTM A 924 [ASTM A 924M] Mounting bracket and angle 14 gage ASTM A 366 M ASTM A 275 [ASTM A 275M], ASTM A 653 [ASTM A 653M], ASTM A 924 [ASTM A 924M] Adapter plate 12 gage ASTM A 366 M ASTM A 275 [ASTM A 275M], ASTM A 653 [ASTM A 653M], ASTM A 924 [ASTM A 924M] Anti-twist plate 16 gage ASTM A 366 M Cantilever pipe, galvanized. Pressure testing not required ASTM A 53 type F, Schedule 40 ASTM A 275 [ASTM A 275M], ASTM A 653 [ASTM A 653M], ASTM A 924 [ASTM A 924M] Screw fittings may be steel or malleable iron. Pressure testing not required.
ASTM A 858M or ASTM A 47 [ASTM A 47M] grade 22010 ASTM A 153 [ASTM A 153M] class C or D
Get an email when 818 changes
Wyoming revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.