5/16"-18 x 3" Zinc Grade 2 / A307 Square Head Bolts (10 pcs.)
Type: Square Head Bolts
SKU 71708
Availability:
10+ in stock, ready to be shipped
Original price
$10.83
-
Original price
$10.83
Original price
$10.83
$10.83
-
$10.83
Current price
$10.83
Diameter: 5/16"
Length: 3"
Material: Steel
Finish: Zinc
Head Style: Square (1/2" Wrench)
Thread Size: 18 (Coarse)
Hardness: Grade 2 / A307
Type: Square Head Bolt
Box of 10.
A square head bolt has a four-sided head. Compared to standard hex bolts, square bolts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening (though also greater resistance to tightening). Square bolts are typically mated with square-headed nuts.