External Hexagon Hollow Screw Machine Threading Through Hole Bolt M6toM12 1 2Pcs
Model: Outer hexagon thread screw
Material: 304 stainless steel
Product strength: 4.8 grade
Standard type: NATIONAL standard
Size: for example: M6*20(hole 6mm x screw length 20mm) internal control size
Package Include: 1 to 2 Pcs x Hexagon Hollow Screw