Installation Guide

The Grade 2 residential products are available only with a default keyway compatible with an Ilco 1176 key and an

appropriate pinning kit. A second keyway is planned and will be compatible with an Ilco 1145 or 1145A key and an

appropriate pinning kit. When available, the 1145 compatible keyway may be speciﬁed by adding D045 or D046 to the

product part number.

There are some special requirements associated with the BumpStop

pins used in these products. Because of the PVD

ﬁnish used on the cylinders, the BumpStop

technology requires the use of a spool bottom pin in conjunction with the

BumpStop

pin for the 1176 compatible keyway. A single BumpStop

pin is required to make the lock bump resistant, but

at times we install a second one in some cylinders to eliminate the potential for someone to develop a systematic method of

defeating the BumpStop

technology.

The same principle applies to the use of the spool bottom pins associated with the BumpStop

pin. In order to eliminate the

potential for someone to develop a systematic method of defeating the BumpStop

technology we install a second spool

bottom pin in every cylinder. That second spool bottom pin does not have to be associated with a BumpStop

pin. Our

supplemental pin kit 291BS1 consists of spool bottom pins of every potential size along with the correct driver spring for use

in the cylinder.

The 1145/1145A compatible keyway does not require the use of spool bottom pins and standard .115" diameter pin tumblers

may always be used in those cylinders. The table below indicates which cut depths/bottom pins must be associated with

the BumpStop

pin in the cylinder.

Grade 2 Residential

1176 Compatible Keyway 1145 Compatible Keyway

Use cuts 1, 2 or 3 Use cuts 0, 1 or 2

Spool Bottom Pins

291BS1 Rekeying Kit