M8 Thread 70mm Long Hex Socket Flat Head Expansion Anchor Bolt 4pcs

Key Features

• Package Content 4 x Expansion Bolt; Main Color Silver Tone
• Overall Size 70 x 16mm/2.8" x 0.63"(L*Max.D); Thread Dia M8/0.31"
• Sleeve Diameter 11mm/0.43"; Punch Diameter 12mm/0.47"
• Hex Socket Width 5mm/0.2"; Product Name Expansion Bolt
• Material Stainless Steel; Weight 153g

Product Description

Applications: be widely used in fence, burglarproof doors and windows, canopy, air conditioning rack fixation, home decoration, engineering, etc.The working principle of expansion screw: Put the expansion screw into the ground or the hole on the wall and then tighten the nuts of the expansion bolt with wrench. The bolt goes outside while the metal sheath does not move. Thus the bigger head of the bolt will expand the metal sheath, making it fill the whole hole. Now, the expansion screw can not be pulled out.