CSHL720A286

Imperial Structural Heavy-Duty Locking Crownserts

CSH Series / Locking Type / A286 / Structural Heavy-Duty

Installed using the Crownserts Hand-Installation Tool:  CSHTL720

CSHL720A286 reinforces or repairs 7/16-20 UNF imperial threads in aluminium, magnesium or other non-ferrous materials. A286 high-temperature alloy, with .515 33/64 tap-hole guidance and CSHTL720 hand installation tooling.

Crownserts can offer you the part CSHL720A286 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CSHL720A286 - Imperial Structural Heavy-Duty Locking Crownserts
CSHL720A286 - Imperial Structural Heavy-Duty Locking Crownserts
CSHL720A286 - Imperial Structural Heavy-Duty Locking Crownserts
CSHL720A286 - Imperial Structural Heavy-Duty Locking Crownserts
 How to install a Crownsert?
CSHL720A286 - Imperial Structural Heavy-Duty Locking Crownserts
CSHL720A286 - Imperial Structural Heavy-Duty Locking Crownserts
CSHL720A286 - 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
CSHL720A286 schematic

Material & Finish

Material A286 per AMS5731 or AMS 5734
Finish PASSIVATED per AMS 2700 & SFL coated per SAE AS5272, Type 1
Temperature range -400°/+650°F
Heat treat RC 32-40
Magnetic NO

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 CSHL720A286 as factory new.