Locking Serrations under the head maintain a tight grip when loosening forces are present. The flanged head also provides greater bearing surface and eliminates the need for a washer. Comes with carbon steel with a zinc, black oxide and green zinc (grounding screw) finish, Grade 5 steel with zinc finish, and stainless steel 18-8 . Features Serrated Bolts 200 Piece Specifications Size: 1/4-20 x 1-1/4 Thread Size: 1/4-20 x 1-1/4 Material: Stainless Steel 18-8 Drive Style: External Hex Head Style: Flange Head Thread Style: Right Hand Weight: 18 lbs - SKU: APFN177975

Locking Serrations under the head maintain a tight grip when loosening forces are present. The flanged head also provides greater bearing surface and eliminates the need for a washer. Comes with carbon steel with a zinc, black oxide and green zinc (grounding screw) finish, Grade 5 steel with zinc finish, and stainless steel 18-8 . Features Serrated Bolts 200 Piece Specifications Size: 1/4-20 x 1-1/4 Thread Size: 1/4-20 x 1-1/4 Material: Stainless Steel 18-8 Drive Style: Exte