Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Hardware Attachment Threadlocking

All door hardware production attaching screws contain an epoxy threadlocking compound to ensure that the minimum original torque setting will be maintained.

Service attaching screws may not contain a threadlocking compound. To prevent loosening of service screws or to renew threadlocking characteristics of production screws, the threads of the fastener(s) can be treated with part no. 12345493, Adhesive/Sealant Compound (or equivalent). Upon installation and drying, the adhesive cures to bond the attachment and the prevent loosening or back out. The adhesive bond does not prevent future attachment removal if required. Adhesive/Sealant Compound or equivalent can be used on any threaded fastener.