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CSHL912AD

Imperial Large Heavy-Duty Crownserts

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

Installed using the Crownserts Hand-Installation Tool:  CSHTL912

CSHL912AD reinforces or repairs 9/16-12 UNC imperial threads in aluminium, magnesium or other non-ferrous materials. 4130 alloy steel for high mechanical strength, with .703 45/64 tap-hole guidance and CSHTL912 hand installation tooling.

Crownserts can offer you the part CSHL912AD with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

Thread & Dimensions

A internal thread (Class 3B) 9/16-12 UNC
B external thread (Class 3A) 3/4-16 UNF
Ø max minor special .6860
Ø C (+.008/-.002) .647
D (+.015/-.000) .145
E ref .481
G (±.010) .843
Through-hole preparation Min. full depth 0,878
Blind-hole preparation Min. full depth 0,878
CSHL912AD 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 CSHTL912
Step drill part number CSD0703
Tap through tool part number TTI0750
Blind tap tool part number TBI0750
Removal tool part number CSHRT912

Crownserts is offering part CSHL912AD as factory new.