Simms Hardbite™ Felt Studs -Simms' HardBite Boot Studs for felt soles easily convert felt wading boots to studded. 45+ Rockwell hard screw, zinc-plated for corrosion resistance1/4 inch hex head sharp point screw fits any 1/4 inch nut driver or drill bitWelded carbide gripper pellets enhance traction and durabilityFor use with felt soles20 studs per packageStyle: AU-HBS5