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CS624SP

Imperial Structural Standard Crownserts

CS Series / Standard Type / SP / Structural

Installed using the Crownserts Hand-Installation Tool:  CST624

CS624SP is an imperial structural standard crownsert in silver-plated 17-4PH stainless steel, designed to strengthen 3/8-24 UNF threads in lightweight parent materials. It uses 7/16-20 UNF external threads and CST624 installation tooling.

Crownserts can offer you the part CS624SP with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

Thread & Dimensions

A internal thread (Class 3B) 3/8-24 UNF
B external thread (Class 3A) 7/16-20 UNF
Ø max minor special .4010
Ø C (+.008/-.002) .377
D (+.015/-.000) .110
F .370
G (±.010) .560
J (±1) 34
Through-hole preparation Min. full THD depth .820; Min. full depth .595
Blind-hole preparation Min. full THD depth .720; Min. full depth .595
CS624SP 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 CST624
Step drill part number CSD0404
Tap through tool part number TTI0437
Blind tap tool part number TBI0437
Removal tool part number CSRT624

Crownserts is offering part CS624SP as factory new.