Alpine

ANCHOR BOLTS AND HOLDERS KCAB SUPERSPEED ANCHOR BOLTS Design Features . . the SUPERSPEED anchor bolts are designed to be installed with the AD, ADG, ADAG, and ADBG series anchor downs. The load capacity has been tested. Installation is achieved before the pour, using a device to hold the KCAB diagonally at approximately 45° from the wall. Minimum concrete compression strength is 2500 psi and requires no special foundation concrete inspection. Standard nuts and washers are required, but not supplied. KCAB bolts can be used for two-pour systems. Material . . ⁵⁄₈" and ⁷⁄₈" rod. Finish . . KCABs may be special ordered with hot dip galvanized coating. Special . . features of the KCABs include: KCAB16 use during installation. (Other Similar) orientation of an anchor placement. KCAB36 anchor bolt can be used with AD6A-G, AD8A-G, AD10A-G, ADG8, ADST-G. and concrete side bursting. ABC ANCHOR BOLT CHAIRS PRODUCT CODE Design Features . . allows the anchor bolt or all-thread rod to be secured before the concrete is poured. The ABC also allows proper alignment of the anchor bolts before wall framing. Anchor bolts will no longer be dislodged by vibrations from power equipment. Material . . base 14 ga. steel. Special . . various lengths of anchor bolts or all-thread rod are available (specify AB or ATR). Custom sizes of the base are also available. BOLT DIMENSIONS (INCHES) DIAMETER L ABC1212 ¹⁄₂ 12 ABC5812 ⁵⁄₈ 12 ABC3412 ³⁄₄ 12 Specify Specify ABC-CUSTOM All Thread Rod Screwed Into Nut and Chair ABC (Specify Flat Type) CAUSES FOR ANCHOR DOWN DEFLECTION: A. Per 97 NDS section 8.1.2.1 bolt holes are to be shrinkage will cause additional deflection under 1/16 inch larger than bolt diameter. This can load. Using bearing plates against the wood helps cause deflection until the bolt seats in the hole. create a stronger connection on the post. Using Increasing the bolt hole diameter will lead to an ADST screw type anchor downs reduces this increase in deflection. Using ADST screw type potential source of deflection. anchor downs eliminates this potential source of E. Anchor downs which have been subjected to high deflection. loads caused by earthquakes or wind may have B. Installation of Anchor Downs on only one side of been deflected causing a loose connection. the stud creates an eccentric condition which at F. Wood shrinkage at the base of the Anchor Down, maximum load can cause additional deflection of sill plates, rim joist, etc. can cause anchor bolts to the post. become loose, which may require retightening. C. Anchor bolts can loosen especially during the G. Compression forces from normal dead and live cyclic loads as in earthquakes. Using thread loads as well as overturning forces from wind adhesives or nuts with nylon locking inserts can or earthquakes may cause the wood at the post reduce loosening. ends, sill plates, etc. to crush resulting in gaps and D. Post bolts installed and not tightened or post bolts additional deflection. which become loose as a result of wood post 82 www.itwbcghardware.com - 800.521.9790 ITW BCG Hardware

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