SR-318L0025

Imperial Structural Locking Inserts

Locking Type / A286 / Structural

Installed using the Crownserts Hand-Installation Tool:  CSTL518

SR-318L0025 repairs/reinforces 5/16-18 UNC imperial threads in Al/Mg or other non-ferrous materials; A286 alloy. Tap hole .343 11/32; install with CSTL518. This is an old Anemo part. Please use CSL518A286.

We can offer you the part SR-318L0025 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

SR-318L0025 - Imperial Structural Locking Inserts
SR-318L0025 - Imperial Structural Locking Inserts
SR-318L0025 - Imperial Structural Locking Inserts
SR-318L0025 - Imperial Structural Locking Inserts
 How to install a Crownsert?
SR-318L0025 - Imperial Structural Locking Inserts
SR-318L0025 - Imperial Structural Locking Inserts
SR-318L0025 - Imperial Structural Locking Inserts

Thread & Dimensions

A internal thread (Class 3B) 5/16-18 UNC
B external thread (Class 3A) 3/8-24 UNF
Ø max minor special .3405
Ø C (+.008/-.002) .314
D (+.015/-.000) .110
E .266
G (±.010) .470
J (±1) 29
Through-hole preparation Min. full THD depth .693; Min. full depth .505
Blind-hole preparation Min. full THD depth .693; Min. full depth .505
SR-318L0025 schematic

Material & Finish

Material A286 per AMS5731 or AMS 5734
Finish PASSIVATED per AMS 2700 & SFL coated per SAE AS5272, Type 1
Temperature range -400°/+650°F
Heat treat RC 32-40
Magnetic NO

Tooling & Preparation

Hand-Installation tool part number CSTL518
Step drill part number CSD0343
Tap through tool part number TTI0375
Blind tap tool part number TBI0375
Removal tool part number CSRT518
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