Big-Sert 37004 M11 x 2.0 x 30mm Head Bolt Insert

This is the replacement Big Sert (oversize) insert that comes in the 3700BS universal headbolt kit

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 0.5 lbs
Dimensions 11 × 8 × 2 in


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