The nylon flange head adds stability in hollow surfaces

1 3/8-12 x 6 Socket Cap Screw Alloy

15/64 Cobalt Heavy Duty Jobber Drill Bit

#20 Heavy Duty Jobber Drill Bit

trust the selection you’ll find at FMW Fasteners

1 3/8-6 Finished Hex Nut SS 18-8 (A2) SNAPSKRU Mini Drywall Anchors The nylon flange head adds1 3 8 6 Finished Hex Nut SS 18 8 (A2) . Finished Hex Nuts in 18 8 stainless steel are for use with stainless steel bolts or screws with a specified minimum tensile strength equal or less than the specified proof stress of the mating nut. 18 8 nuts are characterized as having a chromium content of 18% and nickel content of 8 10%.