MS21209C0415 self-locking thread insert for 4-40 thread, 0.112" diameter x 0.168" length. Red dye identification for quality control.MS21209C0415 - Self-locking insert, 4-40 x 0.168"SKU: MS21209C0415$1.00PriceThread Size*4-40Length*0.168Material*Stainless SteelFinish*Dyed RedDrill Option*N/AQuantity*Add to CartSpecificationsMS21209C0415 NASM8846 AS5272Cross ReferencesMS21209C0415Technical Details0.112 C0415ApplicationsSelf Locking Screw Thread Inserts