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CSL1018

Imperial Large Crownserts

CS Series / Locking Type / 17-4PH / Large

Installed using the Crownserts Hand-Installation Tool:  CSTL1018

CSL1018 reinforces or repairs 5/8-18 UNF imperial threads in aluminium, magnesium or other non-ferrous materials. 17-4PH stainless steel, with .703 45/64 tap-hole guidance and CSTL1018 hand installation tooling.

Crownserts can offer you the part CSL1018 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
CSL1018 schematic

Material & Finish

Material 17-4PH, Cond H1025 per AMS 5643
Finish PASSIVATED per AMS 2700 & SFL coated per SAE AS5272, Type I
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 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 CSL1018 as factory new.