SR-250-0008

Imperial Structural Standard Inserts

Standard Type / AL / Structural

Installed using the Crownserts Hand-Installation Tool:  CST420

SR-250-0008 CS Series is a standard imperial insert. IVD-coated 17-4PH stainless; 1/4-20 UNC internal, 5/16-24 UNF installation threads. This is an old Anemo part. Please use CS420AL

We can offer you the part SR-250-0008 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

SR-250-0008 - Imperial Structural Standard Inserts
SR-250-0008 - Imperial Structural Standard Inserts
SR-250-0008 - Imperial Structural Standard Inserts
SR-250-0008 - Imperial Structural Standard Inserts
 How to install a Crownsert?
SR-250-0008 - Imperial Structural Standard Inserts
SR-250-0008 - Imperial Structural Standard Inserts
SR-250-0008 - Imperial Structural Standard Inserts

Thread & Dimensions

A internal thread (Class 3B) 1/4-20 UNC
B external thread (Class 3A) 5/16-24 UNF
Ø max minor special .2785
Ø C (+.008/-.002) .252
D (+.015/-.000) .095
F .240
G (±.010) .380
J (±1) 24
Through-hole preparation Min. full THD depth .519; Min. full depth .415
Blind-hole preparation Min. full THD depth .519; Min. full depth .415
SR-250-0008 schematic

Material & Finish

Material 17-4PH, Cond H1025 per AMS 5643
Finish IVD ALUMINIUM coating per MIL-DTL-83488 type 2, Class 3 & SFL per SAE AS5272, Type I
Temperature range Up to 600°F
Heat treat RC 35-42
Magnetic YES

Tooling & Preparation

Hand-Installation tool part number CST420
Step drill part number CSD0281
Tap through tool part number TTI0312
Blind tap tool part number TBI0312
Removal tool part number CSRT420
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