Online Parts Store › Nylon Insert Locknut - Stainless M10-1.5 Image 1 of 1 Nylon Insert Locknut - Stainless M10-1.5 $22.42 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Stainless Cotter Pin 1/8" x 2" $18.81 Nylon Flat Washer #8, 0.32" Thick, OD 3/8" $16.50 Nylon Insert Locknut - Stainless 3/8-16 $28.40 Square Tapping Screw - Flat Head,#12 x 2" $49.38 Phillips Tapping Screws - Oval Head, #10 x 1-1/4" $28.85