CSHL518

Imperial Structural Heavy-Duty Locking Crownserts

CSH Series / Locking Type / 17-4PH / Structural Heavy-Duty

Installed using the Crownserts Hand-Installation Tool:  CSHTL518

CSHL518 CSH Series is a locking imperial Crownserts® threaded insert for durable thread reinforcement. 17-4PH stainless steel; specified with 5/16-18 UNC internal thread and 13/32-20 NS installation thread.

Crownserts can offer you the part CSHL518 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CSHL518 - Imperial Structural Heavy-Duty Locking Crownserts
CSHL518 - Imperial Structural Heavy-Duty Locking Crownserts
CSHL518 - Imperial Structural Heavy-Duty Locking Crownserts
CSHL518 - Imperial Structural Heavy-Duty Locking Crownserts
 How to install a Crownsert?
CSHL518 - Imperial Structural Heavy-Duty Locking Crownserts
CSHL518 - Imperial Structural Heavy-Duty Locking Crownserts
CSHL518 - 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
CSHL518 schematic

Material & Finish

Material 17-4PH, Cond H1025 per AMS 5643
Finish PASSIVATED per AMS 2700 & SFL coated per SAE AS5272
Temperature range -110°/+650°F
Heat treat RC 35-42
Magnetic YES
Material note Standard material code; no suffix added to the part number.

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 CSHL518 as factory new.