Our Products Screw, Cable Clamp, Washer, Nut Short Screw Half Helix Screw 4.5 x 25.7 Half Helix Screw ( 4.5 x 25.7 ) Category of Product : Half Helix ScrewProduct Number : PSTB02 Please write down your comment on this product, and click Add to Inquiry List for inquiry Add to Inquiry List Review Inquiry List Back