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CSHLM8X1.25

Metric Heavy Duty Locking Crownserts

CSHML Series / Locking Type / 17-4PH / Heavy Duty

Installed using the Crownserts Hand-Installation Tool:  CSHTLM8

CSHLM8X1.25 is a metric heavy duty locking crownsert for reinforced MJ8X1.25 threads in aluminium or magnesium. 17-4PH stainless steel; installation data includes 10.376-10.612 mm tap drill and 17,7 mm minimum full thread depth.

Crownserts can offer you the part CSHLM8X1.25 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

Thread & Dimensions

Thread Ø A / class MJ8X1.25
Thread Ø B / class M12X1.5
Ø C (±0.15) 9,36
D (±0.3) 16,7
E (±0.2) 3,95
F ref 2,9
G min 2,00
H RAD min 3,64
R ref 10,3
Through-hole preparation Min. full THD depth 13,8 / 17,7; Min. full depth 19,3 / 23,2
Blind-hole preparation Min. full THD depth 13,8 / 17,7; Min. full depth 17,9 / 21,8
CSHLM8X1.25 schematic

Material & Finish

Material 17-4PH, Cond H1025 per AMS 5643
Finish PASSIVATED per AMS 2700 & SFL coated per SAE AS5272
Temperature range -110°/+650°F
Heat treat RC 35-42
Magnetic YES
Material note Standard material code; no suffix added to the part number.

Tooling & Preparation

Hand-installation tool part number CSHTLM8
Step drill part number CSHD1061
Tap through tool part number TTIM12
Blind tap tool part number TBIM12
Removal tool part number CSHRTM8

Crownserts is offering part CSHLM8X1.25 as factory new.