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CSHL518A286

Imperial Structural Heavy-Duty Locking Crownserts

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

Installed using the Crownserts Hand-Installation Tool:  CSHTL518

CSHL518A286 reinforces or repairs 5/16-18 UNC imperial threads in aluminium, magnesium or other non-ferrous materials. A286 high-temperature alloy, with .368 U tap-hole guidance and CSHTL518 hand installation tooling.

Crownserts can offer you the part CSHL518A286 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

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
CSHL518A286 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 CSHTL518
Step drill part number CSD0368
Tap through tool part number TTI0422
Blind tap tool part number TBI0422
Removal tool part number CSHRT518

Crownserts is offering part CSHL518A286 as factory new.