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Unit:inch

Twist-Off-Type Tension Control Structural Bolts: Heavy Round Head Configurations (ASTM F3125 / F3125M)

ASME B 18.2.6 - 2019

Display drawing:

美标ASME B18.2.6 - 2019 ASME18.2.6 18.2.6A Twist-Off-Type Tension Control Structural Bolts: Heavy Round Head Configurations (ASTM F3125 / F3125M)

Thread Size

1/2

5/8

3/4

7/8

1

1-1/8

1-1/4

PP		UNC
k		max
		min
d_s		max
		min
d_k		max
b		Thread Length	Ref.
z		Ref.
s₁		Ref.

13	11	10	9	8	7	7
0.323	0.403	0.483	0.563	0.627	0.718	0.813
0.302	0.378	0.455	0.531	0.591	0.658	0.749
0.515	0.642	0.768	0.895	1.022	1.149	1.277
0.482	0.605	0.729	0.852	0.976	1.098	1.223
1.126	1.313	1.58	1.88	2.158	2.375	2.76
1	1.25	1.38	1.5	1.75	2	2
0.5	0.6	0.65	0.72	0.8	0.9	1
0.32	0.43	0.53	0.61	0.7	0.8	0.9

①,Chemical and mechanical properties shall conform to ASTM F 1852 or ASTM F 2280, as applicable.

Alternative history

ASME B 18.2.6 - 2006 ASME B 18.2.6 - 2010 ASME B 18.2.6 - 2019

Similar Standards

1		[ASME] ASME B 18.2.6 - 2006	Steel structure with high strength round torsional shear bolt (ASTM F 1852 / ASTM F 2280)
2		[EN] EN 14399 (-10 cup) - 2018	High-Strength Structural Bolting Assemblies For Preloading - System HRC - Bolt HRC with Cup Head
3		[ASME] ASME B 18.2.6 - 2010	Twist-Off-Type Tension Control Structural Bolts: Heavy Round Head Configurations (ASTM F 1852 / ASTM F 2280)
4		[GB] GB /T 3632 (S) - 2008	Torshear type high strength bolt for steel structures
5		[JSS] JSS II 09 (-1) - 1996	Torsional shear type high strength bolt for structural connection
6		[GB] GB /T 32076.8 - 2017	High-Strength Structural Bolting Assemblies For Preloading - Torshear Type Bolt With Cup Head
7		[GB] GB /T 3632 (S) - 1995	Torshear type high strength bolt for steel structures