9/16" Worm Drive Clamp
9/16" Worm Drive Clamps (63-4 Series)
Type F Clamp according to SAE J1508
Marine grade clamp. All 300 grade stainless steel. For recreational boating and applications requiring greater resistance to corrosion.  We recommend an All 316 stainless steel option for commercial shipping, extra strenuous or more extreme corrosion resistance application needs. *For all 316 stainless steel, see 67-6 Series.

Material Specifications for 63-4 Series
Marine grade clamp.
All 300 grade stainless steel.
Screw: 5/16" hex-head. 300 grade stainless steel.
Band: 9/16" band width. 300 grade stainless steel.
Housing: 300 grade stainless steel.