Skip to main content

CSL1018AD

Imperial Large Crownserts

CS Series / Locking Type / AD / Large

Installed using the Crownserts Hand-Installation Tool:  CSTL1018

CSL1018AD CS Series is a locking imperial Crownserts® threaded insert for durable thread reinforcement. 4130 alloy steel for high mechanical strength; specified with 5/8-18 UNF internal thread and 3/4-16 UNF installation thread.

Crownserts can offer you the part CSL1018AD with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

Thread & Dimensions

A internal thread (Class 3B) 5/8-18 UNF
B external thread (Class 3A) 3/4-16 UNF
Ø max minor special .6870
Ø C (+.008/-.002) .634
D (+.015/-.000) .145
E .534
G (±.010) .940
J (±1) 46
Through-hole preparation Min. full THD depth 1.248; Min. full depth .967
Blind-hole preparation Min. full THD depth 1.123; Min. full depth .967
CSL1018AD 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 CSTL1018
Step drill part number CSD0702
Tap through tool part number TTI0750
Blind tap tool part number TBI0750
Removal tool part number CSRT1018

Crownserts is offering part CSL1018AD as factory new.