CSL0440

Imperial Miniature Crownserts

CS Series / Locking Type / 17-4PH / Miniature

Installed using the Crownserts Hand-Installation Tool:  CSTL04

CSL0440 is an imperial miniature crownsert in 17-4PH stainless steel, designed to strengthen 4-40 UNC threads in lightweight parent materials. It uses 8-32 UNC external threads and CSTL04 installation tooling.

Crownserts can offer you the part CSL0440 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CSL0440 - Imperial Miniature Crownserts
CSL0440 - Imperial Miniature Crownserts
CSL0440 - Imperial Miniature Crownserts
CSL0440 - Imperial Miniature Crownserts
 How to install a Crownsert?
CSL0440 - Imperial Miniature Crownserts
CSL0440 - Imperial Miniature Crownserts
CSL0440 - Imperial Miniature Crownserts

Thread & Dimensions

A internal thread (Class 3B) 4-40 UNC
B external thread (Class 3A) 8-32 UNC
Ø max minor special .1380
Ø C (+.008/-.002) .116
D (+.015/-.000) .060
E .092
G (±.010) .190
J (±1) 15
Through-hole preparation Min. full THD depth .361; Min. full depth .220
Blind-hole preparation Min. full THD depth .298; Min. full depth .220
CSL0440 schematic

Material & Finish

Material 17-4PH, Cond H1025 per AMS 5643
Finish PASSIVATED per AMS 2700 & SFL coated per SAE AS5272, Type I
Temperature range -110°/+650°F
Heat treat RC 35-42
Magnetic YES
Material note Standard material code; no suffix added to the part number.

Tooling & Preparation

Hand-installation tool part number CSTL04
Step drill part number CSD0140
Tap through tool part number TTI0164
Blind tap tool part number TBI0164
Removal tool part number CSRT04
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Crownserts is offering part CSL0440 as factory new.