mailbox

Shaft material: 40Cr(ASTM A5140) or 45#(ASTM 1045) steel. Helix plate: ASTM A36 hot rolled plate, available in 3/8\'\' and 1/2\'\' thickness. All helix leading edges sharpened and rock cut and 45 degrees. Corrosion protection: ASTM A153, hot dipped zinc coating. Efficient ...

Come From Better Screw Co.,

Shaft material: Seamless high tensile pipe, conforms to ASTM A500 GRADE B or Customized. Helices material: ASTM A36 hot rolled plate. Corrosion protection: ASTM A153, hot dipped zinc coating. Leading edge of helices beveled 45 degrees. Greater section modulus strength to resist ...

Come From Better Screw Co.,

1) specification: 472 * 122 * 485 h l DMM 2) material: Stainless steel plate + galvanized sheet + spray 3) material thickness: The box body 0.8mm into the gate, the gate of the gate 0.8mm 3) net weight: 4.1kg 4) gross weight: 18.9kg/4pcs 5) inner packing: 340W*500H*140Dmm 6) ...

Come From Goodhope Hardware Co. Ltd.