Flat Head Decking Screw, Square Drive

• Material: Carbon Steel
• Type: Hexagon Head
• Groove: Spuare
• Connection: Screw
• Head Style: Counter Sunk Bolt
• Standard: DIN
• Grade: 8.8
• Transport Package: in Small Box or in Blister Packing
• Specification: M4*50
• Origin: China
• HS Code: 7318149001
• Production Capacity: 9000000PCS/Month

Product Description

Specifications construction screws--T30 /T25 drive bit 
Material: Carbon steel 
Surface: Zinc&Yellow (Cr+3) 
Size: M6-M12
 concttiction screws/Window Frame Screw
 

1.Material: Carbon steel/Alloy stell 
2.Surface: Zinc&Yellow (Cr+3)
3.length:60mm~500mm
4.Packing:Samll plain box, wooden pallet
 
Specifications
 
Cheese Head   Torx Recess Concrete Screw
1) Material: C1022, case hardened, surface hardness HV450-750, core hardness HV270-390, carbon penetration depth 0.15-0.30mm