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“ What size should be drilled when using thru bolts? ”

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What size machine screws are used with thru bolts and a 2-3/4" thick door and a 4040 closer?
A 4040 closer mounted with thru bolts on a 2-3/4" thick door would require 1/4-20 X 3-1/2" machine screws.
What is the thread size on LCN thru bolts?
The LCN Thru bolts accept 1/4-20 thread. LCN thru bolts are made of steel with zinc plating.
Is there a tool to drill the thru bolt holes on cylindrical locks?
Order the M204-198 thru-bolt jig, see Figure 1. Figure 1: M204-198 thru bolt jig The 40-080 was the old Schlage jig. The 030736-000-70 was the old Falcon jig.  When the jig changed to...
What are the part numbers for the mounting posts and screws for an L9000 lock?
 Mounting Posts   Part Number  Door Thickness  L583-211  1 3/8"  L583-212  1 3/4" - See note section on SL1 trim  L583-213  2...
Can a 4040 regular mount installed on the pull side and a Glynn Johnson 90 be mounted together?
The LCN 4041/4040XP and the Glynn Johnson 90 series can be mounted in conjunction with each other without a special template.  The 4040 door closer is on the pull side of the door and the GJ 90 is ...
Do LCN closers come with thru bolts?
The standard screw pack for an LCN closer is the SRT (Self Reaming and Tapping) screw. Thru bolts are an option, but must be specified on the order. There is no charge for them, but they do need to...