CSHL518AD

Imperial Structural Heavy-Duty Locking Crownserts

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

Installed using the Crownserts Hand-Installation Tool:  CSHTL518

CSHL518AD reinforces or repairs 5/16-18 UNC imperial threads in aluminium, magnesium or other non-ferrous materials. 4130 alloy steel for high mechanical strength, with .368 U tap-hole guidance and CSHTL518 hand installation tooling.

Crownserts can offer you the part CSHL518AD with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CSHL518AD - Imperial Structural Heavy-Duty Locking Crownserts
CSHL518AD - Imperial Structural Heavy-Duty Locking Crownserts
CSHL518AD - Imperial Structural Heavy-Duty Locking Crownserts
CSHL518AD - Imperial Structural Heavy-Duty Locking Crownserts
 How to install a Crownsert?
CSHL518AD - Imperial Structural Heavy-Duty Locking Crownserts
CSHL518AD - Imperial Structural Heavy-Duty Locking Crownserts
CSHL518AD - Imperial Structural Heavy-Duty Locking Crownserts

Thread & Dimensions

A internal thread (Class 3B) 5/16-18 UNC
B external thread (Class 3A) 13/32-20 NS
Ø max minor special .3651
Ø C (+.008/-.002) .336
D (+.015/-.000) .110
E ref .266
G (±.010) .470
Through-hole preparation Min. full THD depth .730; Min. full depth 0,505
Blind-hole preparation Min. full THD depth .630; Min. full depth 0,505
CSHL518AD 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 CSHTL518
Step drill part number CSD0368
Tap through tool part number TTI0422
Blind tap tool part number TBI0422
Removal tool part number CSHRT518
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Crownserts is offering part CSHL518AD as factory new.