Rigging Screw: 1), Material: stainless steel 304 and stainless steel 316 2), Surface: High Polished Rigging Screw:1) Riggings screw jaw/jaw, size: 1/4" - 1" (5 - 22mm)2) Standard: UNF, metric3) Material: SS316, SS304, Carbon steel4) Surface: Highly Polished, Glav.5) Special specifications can be produced, according to customers' requirements. Rigging Screw