CSHL0720AD

Imperial Structural Heavy-Duty Locking Crownserts

CSH Series / Locking Type / AD / Structural Heavy-Duty

Installed using the Crownserts Hand-Installation Tool:  CSHTL720

CSHL0720AD reinforces or repairs 7/16-20 UNF imperial threads in aluminium, magnesium or other non-ferrous materials. 4130 alloy steel for high mechanical strength, with .515 33/64 tap-hole guidance and CSHTL720 hand installation tooling.

Crownserts can offer you the part CSHL0720AD with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CSHL0720AD - Imperial Structural Heavy-Duty Locking Crownserts
CSHL0720AD - Imperial Structural Heavy-Duty Locking Crownserts
CSHL0720AD - Imperial Structural Heavy-Duty Locking Crownserts
CSHL0720AD - Imperial Structural Heavy-Duty Locking Crownserts
 How to install a Crownsert?
CSHL0720AD - Imperial Structural Heavy-Duty Locking Crownserts
CSHL0720AD - Imperial Structural Heavy-Duty Locking Crownserts
CSHL0720AD - Imperial Structural Heavy-Duty Locking Crownserts

Thread & Dimensions

A internal thread (Class 3B) 7/16-20 UNF
B external thread (Class 3A) 9/16-18 UNF
Ø max minor special .4993
Ø C (+.008/-.002) .466
D (+.015/-.000) .135
E ref .377
G (±.010) .660
Through-hole preparation Min. full THD depth .945; Min. full depth 0,695
Blind-hole preparation Min. full THD depth .834; Min. full depth 0,695
CSHL0720AD 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 CSHTL720
Step drill part number CSD0515
Tap through tool part number TTI0562
Blind tap tool part number TBI0562
Removal tool part number CSHRT720
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Crownserts is offering part CSHL0720AD as factory new.