CS1018SP

Imperial Large Crownserts

CS Series / Standard Type / SP / Large

Installed using the Crownserts Hand-Installation Tool:  CST1018

CS1018SP is an imperial large crownsert in silver-plated 17-4PH stainless steel, designed to strengthen 5/8-18 UNF threads in lightweight parent materials. It uses 3/4-16 UNF external threads and CST1018 installation tooling.

Crownserts can offer you the part CS1018SP with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CS1018SP - Imperial Large Crownserts
CS1018SP - Imperial Large Crownserts
CS1018SP - Imperial Large Crownserts
CS1018SP - Imperial Large Crownserts
 How to install a Crownsert?
CS1018SP - Imperial Large Crownserts
CS1018SP - Imperial Large Crownserts
CS1018SP - Imperial Large Crownserts

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
F .620
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
CS1018SP schematic

Material & Finish

Material 17-4PH, Cond H1025 per AMS 5643
Finish PASSIVATED per AMS 2700 & Silver Plated per AMS 2411 (.0002 min. thickness)
Temperature range -110°/+900°F
Heat treat RC 35-42
Magnetic YES

Tooling & Preparation

Hand-installation tool part number CST1018
Step drill part number CSD0702
Tap through tool part number TTI0750
Blind tap tool part number TBI0750
Removal tool part number CSRT1018
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Crownserts is offering part CS1018SP as factory new.