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CSH0256AD

Imperial Miniature Heavy-Duty Crownserts

CSH Series / Standard Type / AD / Miniature Heavy-Duty

Installed using the Crownserts Hand-Installation Tool:  CSHT02

CSH0256AD is an imperial miniature heavy-duty crownsert in 4130 alloy steel for high mechanical strength, designed to strengthen 2-56 UNC threads in lightweight parent materials. It uses 8-32 UNC external threads and CSHT02 installation tooling.

Crownserts can offer you the part CSH0256AD with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

Thread & Dimensions

A internal thread (Class 3B) 2-56 UNC
B external thread (Class 3A) 8-32 UNC
Ø max minor special .1380
Ø C (+.008/-.002) .116
D (+.015/-.000) .042
F ref .080
G (±.010) .130
Through-hole preparation Min. full depth 0,160
Blind-hole preparation Min. full depth 0,160
CSH0256AD 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 CSHT02
Step drill part number CSD0140
Tap through tool part number TTI0164
Blind tap tool part number TBI0164
Removal tool part number CSHRT02

Crownserts is offering part CSH0256AD as factory new.