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Unit:inch

Flat Round Head With Rings On Undertake Surface Welding Screws

IFI 148 (TC4) - 2002

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美标IFI 148 (TC4) - 2002 IFI148 148IFI Flat Round Head With Rings On Undertake Surface Welding Screws

Nominal Diameter
d

2#

4#

6#

8#

10#

1/4

5/16

3/8

1/2

PP	UNC
d_k	max
	min
k	max
	min
h	max
	min
d₂
d₁	max
	min
d₃	max
	min
H	max
	min

56	48	32	32	24	20	18	16	13
0.200	0.250	0.310	0.350	0.400	0.510	0.635	0.760	0.945
0.180	0.230	0.290	0.330	0.380	0.485	0.610	0.735	0.915
0.036	0.036	0.046	0.052	0.068	0.083	0.099	0.114	0.146
0.026	0.026	0.036	0.042	0.058	0.073	0.089	0.104	0.136
0.005	0.006	0.007	0.008	0.009	0.01	0.012	0.013	0.014
0.002	0.003	0.004	0.005	0.006	0.007	0.008	0.009	0.01
0.1	0.13	0.17	0.19	0.22	0.282	0.312	0.375	0.5
0.035	0.045	0.055	0.065	0.075	0.095	0.125	0.145	0.175
0.025	0.035	0.045	0.055	0.065	0.085	0.115	0.135	0.165
0.17	0.215	0.27	0.305	0.35	0.455	0.57	0.69	0.87
0.15	0.195	0.25	0.285	0.331	0.43	0.545	0.665	0.845
0.016	0.017	0.022	0.027	0.032	0.042	0.047	0.052	0.062
0.012	0.013	0.018	0.023	0.028	0.038	0.043	0.048	0.058

Similar Standards

1		[GB] GB /T 902.4 (PS) - 2010	Threaded Studs With Flange For Short-cycle Drawn Arc Stud Welding - PS Type Threaded Stud With Flanged View Suppliers
2		[JIS] JIS B 1195 - 2009	Flat Round Head Weld Bolts View Suppliers
3		[IFI] IFI 148 (US3) - 2002	Heavy Duty Type US3 Projection Welding Studs
4		[DIN] DIN 34817 - 2001	Weld Screws With Metric Thread
5		[IFI] IFI 148 (UR) - 2002	Type UR Projection Weld Studs
6		[ISO] ISO 13918 (FD) - 2017	Arc Stud Welding - Fully - Threaded Stud - Type Fd
7		[DIN] DIN 32501-1 (GA) - 1991	Studs For Stud Welding With Tip Ignition; Threaded Bolt
8		[IFI] IFI 148 (U3) - 2002	Type U3 Projection Weld Studs
9		[DIN] DIN 34817 - 2017	Weld Screws With Metric Thread
10		[IFI] IFI 148 (UC4) - 2002	Type UC4 Projection Weld Studs
11		[IFI] IFI 148 (TUS3) - 2002	Type TUS3 Projection Weld Studs
12		[IFI] IFI 148 (T3) - 2002	Type T3 Projection Weld Studs
13		[IFI] IFI 148 (TD) - 2002	Type TD Projection Weld Studs
14		[BS] BS 7670-1 - 1993	Screws For Resistance Projection Welding [Table 1]
15		[JIS] JIS B 1195 - 1994	Flat head welding screws
16		[KS] KS B 1057 - 2001	Flat Round Head Weld Screws
17		[YJT] YJT 1004	Metric Spot welding stud
18		[YJT] YJT 1005	Spot welding stud (ANSI/ASME/IFI)