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CS524AL

Imperial Structural Standard Crownserts

CS Series / Standard Type / AL / Structural

Installed using the Crownserts Hand-Installation Tool:  CST524

CS524AL is an imperial structural standard crownsert in 17-4PH stainless steel with IVD aluminium coating, designed to strengthen 5/16-24 UNF threads in lightweight parent materials. It uses 3/8-24 UNF external threads and CST524 installation tooling.

Crownserts can offer you the part CS524AL with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

Thread & Dimensions

A internal thread (Class 3B) 5/16-24 UNF
B external thread (Class 3A) 3/8-24 UNF
Ø max minor special .3405
Ø C (+.008/-.002) .314
D (+.015/-.000) .110
F .310
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
CS524AL schematic

Material & Finish

Material 17-4PH, Cond H1025 per AMS 5643
Finish IVD ALUMINIUM coating per MIL-DTL-83488 type 2, Class 3 & SFL per SAE AS5272, Type I
Temperature range Up to 600°F
Heat treat RC 35-42
Magnetic YES

Tooling & Preparation

Hand-installation tool part number CST524
Step drill part number CSD0343
Tap through tool part number TTI0375
Blind tap tool part number TBI0375
Removal tool part number CSRT524

Crownserts is offering part CS524AL as factory new.