Specification Brand : uxcell BulletPoint1 : Total Length: 40mm / 1.57"; Machine Screw Thread Diameter: M4-0.7; Wood Screw Thread Diameter: 4mm / 0.16" BulletPoint2 : Machine Screw Thread Length: 20mm / 0.79"; Package Content: 30pcs x Hanger Bolts BulletPoint3 : Material: The hanger bolt is made of carbon steel, with a color zinc plated finish, providing good corrosion resistance and antirust ability for long service life. BulletPoint4 : Advantage: Good for wooden furniture jointing. Wood screw thread on one end and a machine screw thread on the other end. BulletPoint5 : Applications: Double-ended screw is suitable for outdoor furniture, household furniture, stair post, wooden guardrail, solid wood furniture, custom furniture, and office furniture. Color : zinc ExteriorFinish : Zinc ExternallyAssignedProductIdentifier1 : 654139328889 ExternallyAssignedProductIdentifier2 : 0654139328889 GradeRating : Grade 10 9 IsValueStoresItem : 1 ItemName : uxcell M4x40mm Hanger Bolts, 30pcs Double Ended Thread Dowel Screws for Wood Furniture Connecting ItemPackageDimensions_Height : 9 centimeters ItemPackageDimensions_Length : 1.5 centimeters ItemPackageDimensions_Width : 6.1 centimeters ItemPackageQuantity : 1000 ItemTypeKeyword : hanger-bolts Manufacturer : uxcell ManufacturerGrade : Grade 4 8 Material : Stainless Steel Material1 : Carbon Steel Material2 : Zinc MetalType : Carbon Steel ModelNumber : a22080900ux0752 NumberOfItems : 8 NumberOfPieces : 30 PartNumber : a22080900ux0752 ProductDescription : Description: 1. Material: The hanger bolt is made of carbon steel, with a color zinc plated finish, providing good corrosion resistance and antirust ability for long service life. 2. Advantage: Good for wooden furniture jointing. Wood screw thread on one end and a machine screw thread on the other end. 3. Applications: Double-ended screw is suitable for outdoor furniture, household furniture, stair post, wooden guardrail, solid wood furniture, custom furniture, and office furniture.