CS0440AD

Imperial Miniature Crownserts

CS Series / Standard Type / AD / Miniature

Installed using the Crownserts Hand-Installation Tool:  CST04

CS0440AD reinforces or repairs 4-40 UNC imperial threads in aluminium, magnesium or other non-ferrous materials. 4130 alloy steel for high mechanical strength, with .140 #28 tap-hole guidance and CST04 hand installation tooling.

Crownserts can offer you the part CS0440AD with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CS0440AD - Imperial Miniature Crownserts
CS0440AD - Imperial Miniature Crownserts
CS0440AD - Imperial Miniature Crownserts
CS0440AD - Imperial Miniature Crownserts
 How to install a Crownsert?
CS0440AD - Imperial Miniature Crownserts
CS0440AD - Imperial Miniature Crownserts
CS0440AD - 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
F .100
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
CS0440AD 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 CST04
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 CS0440AD as factory new.