SRQ258L0074

Imperial Short Inserts

Locking Type / Inconel 718 SP / Short

Installed using the Crownserts Hand-Installation Tool:  CSTL428

SRQ258L0074 is an imperial short insert in Inconel 718, internally silver-plated for 1/4-28 UNJF-3B threads in light alloys; 5/16-24 UNJF-3A external; install with CSTL428. This is an old Anemo part. Please use CSSL428SP.

We can offer you the part SRQ258L0074 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

SRQ258L0074 - Imperial Short Inserts
SRQ258L0074 - Imperial Short Inserts
SRQ258L0074 - Imperial Short Inserts
SRQ258L0074 - Imperial Short Inserts
 How to install a Crownsert?
SRQ258L0074 - Imperial Short Inserts
SRQ258L0074 - Imperial Short Inserts
SRQ258L0074 - Imperial Short Inserts

Thread & Dimensions

Thread Ø A 1/4-28 UNJF-3B
Thread Ø B 5/16-24 UNJF-3A
Minor diameter max .2785
Ø C (±.003) .256
D (±.010) .380
E ref .24
F (±.005) .090
G (±.005) .075
H ref .210
J 24
Through-hole preparation Min. full THD depth 0,602; Min. full depth .415
Blind-hole preparation Min. full THD depth .519; Min. full depth .415
SRQ258L0074 schematic

Material & Finish

Material Inconel 718 per AMS 5662
Finish Internal surfaces: Silver plated per AMS 2411 (0.0002 in min. thickness); External surfaces: Passivated per AMS 2700
Material note Only available as locking SP version.

Tooling & Preparation

Hand-Installation tool part number CSTL428
Step drill part number CSD0281
Tap through tool part number TTI0311 / TTI0312
Blind tap tool part number TBI0311 / TBI0312
Removal tool part number CSRT428
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