Big-Sert 51405A M14 x 1.25 x 15.0mm Aluminum Washer Seat Spark Plug Insert. Big Sert Aluminum Washer Seat Spark Plug Inserts Made in USA. Big Sert Thread Repair Inserts.

Big-Sert M14 x 1.25 x 15.0mm Washer Seat Aluminum Part #51405A

Normally used in racing applications, where Nitromethane is used as a fuel. Steel inserts typically have a higher tensile strength than aluminum.

Metric Insert Size M14 x 1.25 x 15.0mm

Professional Thread Repair

 TIME-SERT thread repair system the ultimate way to repair threads in stripped or damaged holes

Time Sert inserts self locking. On installation the bottom internal threads of the insert are cold rolled to expand the mating external threads into the base material locking the insert in place.

Inserts are sold in 10 packs.

Additional information

Weight 0.2 lbs
Dimensions 11 × 8 × 2 in


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