1/2" - 7/8" diameter, 1/2" width, soft-touch harsh environment worm-drive hose clamps, SAE 8. Made completely from stainless steel, including the 5/16" slotted hex head screw. Use these soft-touch worm-drive hose clamps with soft hoses and tubes. An integral smooth inner liner covers up the fastening slots that can cut into soft hoses. There are no bumps under the housing to jeopardize the concentricity of the seal and no laminated coverings to disintegrate under heat, ultraviolet, or corrosive attacks. Commonly used in marine and burial applications, the all stainless steel design allows these hose clamps to stand up to tough environments. No steel or spot welds to rust, corrode, or rupture. Meet SAE J1508.