Online Parts Store › Nylon Insert Locknut - Stainless M8-1.25 Image 1 of 1 Nylon Insert Locknut - Stainless M8-1.25 $21.16 18-8 Stainless Steel. Add To Cart Added! 18-8 Stainless Steel. You Might Also Like Phillips Self Drilling Screw - Pan Head #10 x 1-1/4" $37.54 Phillips Tapping Screw - Pan Head, #12 x 1-1/4" $23.49 Flat Washer, 1/4", .050" Thick, OD 11/16" $17.26 Phillips Tapping Screw - Pan Head, #8 x 3/4" $19.21 Phillips Tapping Screws - Flat Head, #14 x 1" $45.79