CSHL1216AD

Imperial Large Heavy-Duty Crownserts

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

Installed using the Crownserts Hand-Installation Tool:  CSHTL1216

CSHL1216AD reinforces or repairs 3/4-16 UNF imperial threads in aluminium, magnesium or other non-ferrous materials. 4130 alloy steel for high mechanical strength, with .891 57/64 tap-hole guidance and CSHTL1216 hand installation tooling.

Crownserts can offer you the part CSHL1216AD with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CSHL1216AD - Imperial Large Heavy-Duty Crownserts
CSHL1216AD - Imperial Large Heavy-Duty Crownserts
CSHL1216AD - Imperial Large Heavy-Duty Crownserts
CSHL1216AD - Imperial Large Heavy-Duty Crownserts
 How to install a Crownsert?
CSHL1216AD - Imperial Large Heavy-Duty Crownserts
CSHL1216AD - Imperial Large Heavy-Duty Crownserts
CSHL1216AD - Imperial Large Heavy-Duty Crownserts

Thread & Dimensions

A internal thread (Class 3B) 3/4-16 UNF
B external thread (Class 3A) 15/16-20 UNJEF
Ø max minor special .8797
Ø C (+.008/-.002) .838
D (+.015/-.000) .170
E ref .648
G (±.010) 1.125
Through-hole preparation Min. full depth 1,160
Blind-hole preparation Min. full depth 1,160
CSHL1216AD 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 CSHTL1216
Step drill part number CSD0891
Tap through tool part number TTI0938
Blind tap tool part number TBI0938
Removal tool part number CSHRT1216
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Crownserts is offering part CSHL1216AD as factory new.