CSL518AD

Imperial Structural Locking Crownserts

CSL Series / Locking Type / AD / Structural

Installed using the Crownserts Hand-Installation Tool:  CSTL518

CSL518AD is an imperial structural locking crownsert in 4130 alloy steel for high mechanical strength, designed to strengthen 5/16-18 UNC threads in lightweight parent materials. It uses 3/8-24 UNF external threads and CSTL518 installation tooling.

Crownserts can offer you the part CSL518AD with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CSL518AD - Imperial Structural Locking Crownserts
CSL518AD - Imperial Structural Locking Crownserts
CSL518AD - Imperial Structural Locking Crownserts
CSL518AD - Imperial Structural Locking Crownserts
 How to install a Crownsert?
CSL518AD - Imperial Structural Locking Crownserts
CSL518AD - Imperial Structural Locking Crownserts
CSL518AD - Imperial Structural Locking Crownserts

Thread & Dimensions

A internal thread (Class 3B) 5/16-18 UNC
B external thread (Class 3A) 3/8-24 UNF
Ø max minor special .3405
Ø C (+.008/-.002) .314
D (+.015/-.000) .110
E .266
G (±.010) .470
J (±1) 29
Through-hole preparation Min. full THD depth .693; Min. full depth .505
Blind-hole preparation Min. full THD depth .693; Min. full depth .505
CSL518AD schematic

Material & Finish

Material Alloy Steel 4130 per AMS 6370
Finish Cadmium Plated per AMS-QQ-P-416 Type 2, Class 3 & SFL per SAE AS5272
Temperature range Up to 450+°F
Heat treat RC 25-34
Magnetic YES

Tooling & Preparation

Hand-installation tool part number CSTL518
Step drill part number CSD0343
Tap through tool part number TTI0375
Blind tap tool part number TBI0375
Removal tool part number CSRT518
 REQUEST A QUOTE  DOWNLOAD OUR CATALOGUE

Crownserts is offering part CSL518AD as factory new.