Description:

Grade-2 Tap Bolt: A low carbon, hex head bolt with a machined point which is threaded to the head.

Grade-5 Tap Bolt: A tap bolt made from medium carbon steel.

Grade-8 Tap Bolt: A tap bolt made from medium carbon alloy steel and heat-treated.

Advantages:

Grade-2 Tap Bolt: To be used in drilled and tapped holes which are threaded full length. Used instead of a stud and a nut.

Grade-5 Tap Bolt: Used to mount motors to machinery; also popular in automotive and truck repair.

Grade-8 Tap Bolt: Used in automotive and fleet industries where greater tensile strength is required than can be met by a grade-5.

Hex Head Tap Bolts

FULLY THREADED HEX TAP BOLTS ASME B18.2.1-1996
Nominal or Basic Product Diameter		F			G		H
		Width Across Flats			Width Across Corners		Head Height
		Basic	Max	Min	Max	Min	Basic	Max	Min
1/4	0.2500	7/16	0.438	0.428	0.505	0.488	5/32	0.163	0.150
5/16	0.3125	1/2	0.500	0.489	0.577	0.557	13/64	0.211	0.195
3/8	0.3750	9/16	0.562	0.551	0.650	0.628	15/64	0.243	0.226
7/16	0.4375	5/8	0.625	0.612	0.722	0.698	9/32	0.291	0.272
1/2	0.5000	3/4	0.750	0.736	0.866	0.840	5/16	0.323	0.302
5/8	0.6250	15/16	0.938	0.922	1.083	1.051	25/64	0.403	0.378
3/4	0.7500	1-1/8	1.125	1.100	1.299	1.254	15/32	0.483	0.455

Tolerance on Length			Nominal Screw Size		Nominal Size
			Nominal Screw Size		Up to 1 in., incl.	Over 1 in. to 2-1/2 in., incl.	Over 2-1/2 in. to 4 in., incl.	Over 4 in. to 6 in., incl.
			1/4 to 3/8		-0.03	-0.04	-0.06	-0.10
			7/16 and 1/2		-0.03	-0.06	-0.08	-0.10
			9/16 to 3/4		-0.03	-0.08	-0.10	-0.10

‡Length of a cap screw is measured from the underhead bearing surface to the extreme end of the screw.

**Product standards require the manufacturer’s head marking to appear on the top of all cap screws 1/4” diameter and larger. “X” represents one location such a marking may appear.

Email:

sales@fastenerz.com

Description:

Advantages:

Hex Head Tap Bolts

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