1 1/2-12 x 3 1/2 Fine Thread 12-Point Flange Screw Alloy Steel Thermal Black Oxide

PRODUCT SPECIFICATIONS (Part # 0000-182687)
Fastener Type:	12-Point Flange Screw
Size Description:	1 1/2-12 x 3 1/2
Diameter/Nominal Size:	1 1/2"
Length:	3 1/2"
Wrench Size/Across Flats:	1.489-1.503"
Head Height:	1.500"
Flange Diameter:	2.224-2.250"
Flange Thickness:	0.584-0.604"
Thread Pitch:	12
Thread Pitch Type:	Fine
Thread Direction:	Right
System of Measurement:	Inch
Grade:	170 KSI Alloy Steel (Grade 9)
Material:	Alloy Steel
Finish:	Thermal Black Oxide
Head Type:	12-Point with Flange
Drive Type:	External 12-Point
Average Piece Weight:	2.9000000 lbs.

12-Point flange screws, also known as Ferry Bolts are high-strength fasteners where the flange diameter and head thickness of the 12-Point Flange Screw are equivalent to the head dimensions of a socket head cap screw, thus permitting the 12-Point Flange Screw to be a replacement for any application that calls for a socket head cap screw. The 12-point head design means that this screw can be tightened with a 12-point socket wrench which allows higher torques to be applied as compared to a standard internal hex drive socket head cap screw. The head or wrench size is the same as the body size.