Item # HCS13750XXX, Hex Cap Screw, 1-3/8" Nominal Dia. On Sales Systems Ltd.

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Sales Systems Limited Products and Services > Fasteners Reference Guide > Bolts / Screws > Square and Hex Bolts and Screws > Hex Cap Screws > Item # HCS13750XXX


	Item # HCS13750XXX, Hex Cap Screw, 1-3/8" Nominal Dia.

Rolled Thread Hex Cap Screws

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Top of Head. Top of head shall be full form and chamfered, with the diameter of chamfer circle being equal to the maximum width across flats within a tolerance of minus 15 percent.
Wrenching Height, J. Wrenching height is a distance measured from the bearing surface up the side of the head at the corners. The width across corners shall be within specified limits for the full wrenching height.
Bearing Surface. Bearing surface shall be flat and washer

Manufacturer · Specifications · Codes and Standards · Thread Length for Screw Lengths

Manufacturer

Manufacturer		Industrial Fasteners Institute

Specifications

Product		Square and Hex Bolts and Screws

Unit of Measure		English

Nominal Size or Basic Product Diameter		1-3/8 in

Nominal Size or Basic Product Diameter (Decimal)		1.3750 in

Max. Body Diameter (E)		1.3750 in

Min. Body Diameter (E)		1.3630 in

Basic Width Across Flats (F)		2-1/16 in

Max. Width Across Flats (F)		2.062 in

Min. Width Across Flats (F)		1.994 in

Max. Width Across Corners (G)		2.382 in

Min. Width Across Corners (G)		2.273 in

Basic Head Height (H)		27/32 in

Max. Head Height (H)		0.878 in

Min. Head Height (H)		0.810 in

Min. Wrenching Height (J)		0.569 in

Max. Transition Thread Length (Y)		0.833 in

Max. Circular Runout of Bearing Surface FIM		0.036 in

Codes and Standards

Codes and Standards		ASME B18.2.1 1996

Thread Length for Screw Lengths

Nom. L_T for Screw Length (6 in. and Shorter)		3.000 in

Nom. L_T for Screw Length (Over 6 in.)		3.250 in

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	· Cut Thread Hex Cap Screws

	· Length Tolerances for Square and Hex Bolts and Screws

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