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Unit:mm

Double End Studs for Pipe Flange Connection

GB /T 9125 - 2003

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国标GB /T9125 - 2003 GB9125 9125GB Double End Studs for Pipe Flange Connection
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 *Models with different eras.

Screw Thread
d
M12 M14 M16 M20 M24 M27 M30 M33 M36 M39
P Coarse thread
Fine thread
Fine thread
1.75 2 2 2.5 3 3 3.5 3.5 - -
- - - - - - - - 3 3
- - - - - - - - - -
Screw Thread
d
M42 M45 M48 M52 M56 M64 M70 M76 M82 M90
P Coarse thread
Fine thread
Fine thread
- - - - - - - - - -
3 3 3 3 3 3 3 3 - 3
- - - 4 4 4 4 4 4 4

Alternative history

GB /T 9125 - 2003 GB /T 9125 - 2010 GB /T 9125.1 - 2020
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1 Studs - Metal end ≈ 1,25 d [DIN]
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3 Double Studs [JIS]
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5 Double End Studs-bm=2d [GB]
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6 Double End Studs-bm=1.25d [GB]
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7 Studs for Use with T-Nuts [DIN]
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8 Connections with Double End Studs - Type HQ [DIN]
DIN 2510-4 (HQ) - 1971 		Connections with Double End Studs - Type HQ
9 Studs with a Length of Engagement Equal to About 2.5d [DIN]
DIN 940 - 1983 		Studs with a Length of Engagement Equal to About 2.5d
10 Studs - Metal End ≈ 2 d [DIN]
DIN 835 - 2010 		Studs - Metal End ≈ 2 d
11 Connections with Waisted Stud - Type ZU [DIN]
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12 Studs with Metric Interference Thread MFS - Part 1: Lengths of Engagement ≈ 2 d (Type A) [DIN]
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13 Double End Studs [IFI]
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14 Connections with Double End Studs - Type GR [DIN]
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16 Studs - Metal End ≈ 1 d [DIN]
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17 Connections with Waisted Stud - Type K [DIN]
DIN 2510-3 (K) - 1971 		Connections with Waisted Stud - Type K
18 Metric Clamping-Type Studs [Table 2] (ASTM F568, F738M, F468M) [ASME]
ASME B 18.31.1M - 2008 (R2016) 		Metric Clamping-Type Studs [Table 2] (ASTM F568, F738M, F468M)
19 Studs with Metric Interference Thread MFS - Part 2: Lengths of Engagement ≈ 2.5 d (Type B) [DIN]
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20 Metric Double End Studs [IFI]
IFI 528 - 1999 		Metric Double End Studs
21 Clamping Type Studs [ASME]
ASME B 18.31.2 - 2008 		Clamping Type Studs
22 Metric Tap-End Studs (1.50 Engagement) [Table 3] (ASTM F568, F738M, F468M) [ASME]
ASME B 18.31.1M - 2008 (R2016) 		Metric Tap-End Studs (1.50 Engagement) [Table 3] (ASTM F568, F738M, F468M)
23 Special Foundation Bolts [DIN]
DIN 797 - 1970 		Special Foundation Bolts
24 Studs with A Length of Engagement Equal to About 1d [DIN]
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25 Connections with Double End Studs - Type HS [DIN]
DIN 2510-4 (HS) - 1971 		Connections with Double End Studs - Type HS
26 Studs with a Length of Engagement Equal to About 2.5d [DIN]
DIN 940 - 2010 		Studs with a Length of Engagement Equal to About 2.5d
27 Connections with Double End Studs - Type GS [DIN]
DIN 2510-4 (GS) - 1971 		Connections with Double End Studs - Type GS
28 Connections with Double End Studs - Type GQ [DIN]
DIN 2510-4 (GQ) - 1971 		Connections with Double End Studs - Type GQ
29 Connections with Waisted Stud - Type KU [DIN]
DIN 2510-3 (KU) - 1971 		Connections with Waisted Stud - Type KU
30 Studs - Metal End ≈ 2.5d [DIN]
DIN 940 - 1995 		Studs - Metal End ≈ 2.5d
31 Dimensions for Tap-End Studs (1.5d Engagement) (Inch Series)（A193 / A320 / A437 / A453 / A540 / A1014）[Table 3] [ASME]
ASME B 18.31.2 - 2014 		Dimensions for Tap-End Studs (1.5d Engagement) (Inch Series)（A193 / A320 / A437 / A453 / A540 / A1014）[Table 3]
32 Connections with Double End Studs - Type HR [DIN]
DIN 2510-4 (HR) - 1971 		Connections with Double End Studs - Type HR
33 Connections with Double End Studs - Type GP [DIN]
DIN 2510-4 (GP) - 1971 		Connections with Double End Studs - Type GP
34 Double End Studs [DIN]
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35 Connections with Double End Studs - Type HP [DIN]
DIN 2510-4 (HP) - 1971 		Connections with Double End Studs - Type HP
36 Special Foundation Bolts [DIN]
DIN 797 - 2009 		Special Foundation Bolts
37 Connections with Waisted Stud - Type L [DIN]
DIN 2510-3 (L) - 1971 		Connections with Waisted Stud - Type L
38 Connections with Waisted Stud - Type Z [DIN]
DIN 2510-3 (Z) - 1971 		Connections with Waisted Stud - Type Z
39 Double End Studs [DIN]
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40 Stude Threaded End ≈2d [DIN]
DIN 835 - 1972 		Stude Threaded End ≈2d
41 Double End Studs (ASTM A354 / A449 / F593 / SAE J429) [ASME]
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43 Stude Threaded End ≈2d [DIN]
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45 Double End Studs - Product Grade B for Pipe Flange Connection [GB]
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46 Connections with Waisted Stud - Type S [GB]
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47 Connections With Waisted Stud-Studs - Type S [GB]
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48 Screwd Studs -B.S.W.Thread [Table 6] [BS]
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51 Studs - Product A and B b1=1.5d [NF]
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53 Double End Studs b1=1.5d [GB]
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54 Connections with Waisted Stud - Type A [GB]
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57 Medium End Studs -ISO Metric Coarse Thread - Product Grade A [UNI]
UNI 5911 - 1966 		Medium End Studs -ISO Metric Coarse Thread - Product Grade A
58 Studs - Product A and B (b1=1d, 1.25d 或 2d) [NF]
NF E 25-135 - 1986 		Studs - Product A and B (b1=1d, 1.25d 或 2d)
59 Double End Studs, bm=1d [UNI]
UNI 5909 - 1993 		Double End Studs, bm=1d
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61 Set of Anchor Bolt with Rolled Threads for Structures - ABR [JIS]
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62 Double End Studs(Clamping Type) - Product Grade C [GB]
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63 Connections with Waisted Stud - Type L [GB]
GB /T 13807.2 (L) - 2008 		Connections with Waisted Stud - Type L
64 Screwd Studs - B.S.F. Thread [Table 5] [BS]
BS 2693-1 - 1956 		Screwd Studs - B.S.F. Thread [Table 5]
65 Connections with Waisted Stud - Type AD [GB]
GB /T 13807.2 (AD) - 2008 		Connections with Waisted Stud - Type AD
66 Medium End Studs (b1=1.5d)-ISO Metric Coarse Thread - Product Grade A [UNI]
UNI 5911 - 1993 		Medium End Studs (b1=1.5d)-ISO Metric Coarse Thread - Product Grade A
67 Connections with Waisted Stud - Type SD [GB]
GB /T 13807.2 (SD) - 2008 		Connections with Waisted Stud - Type SD
68 Screwd Studs - UNF Thread [Table 3] [BS]
BS 2693-1 - 1956 		Screwd Studs - UNF Thread [Table 3]
69 Double End Studs, bm=1d [GB]
GB 897 - 1988 		Double End Studs, bm=1d
70 Double End Studs for Pipe Flange Connection - PN Designated [GB]
GB /T 9125.1 - 2020 		Double End Studs for Pipe Flange Connection - PN Designated
71 Long Metal End Studs - ISO Metric Coarse Thread - Finiah A [UNI]
UNI 59141966 		Long Metal End Studs - ISO Metric Coarse Thread - Finiah A
72 Double End Studs for Pipe Flange Connection [GB]
GB /T 9125 - 2010 		Double End Studs for Pipe Flange Connection
73 Set of Anchor Bolt with Rolled Threads for Structures [JIS]
JIS B 1220 - 2010 		Set of Anchor Bolt with Rolled Threads for Structures
74 Double End Studs [CNS]
CNS 4605 - 1978 		Double End Studs
75 Double End Studs [CNS]
CNS 4604 - 1978 		Double End Studs
76 Double End Studs [CNS]
CNS 4603 - 1978 		Double End Studs
77 Double End Studs [YJT]
YJT 2003 (BCEQ-9411 A1) 		Double End Studs
78 Double End Studs [CNS]
CNS 4609 - 1983 		Double End Studs
79 Double End Studs for T-Nuts [CNS]
CNS 4607 - 1983 		Double End Studs for T-Nuts
80 Double End Studs [CNS]
CNS 4606 - 1983 		Double End Studs
81 Double End Studs - Type 2 [OCT]
OCT 26 - 2040 (Type 2) - 1996 		Double End Studs - Type 2
82 Double End Studs - Type 1 [OCT]
OCT 26 - 2040 (Type 1) - 1996 		Double End Studs - Type 1
83 Double End Studs [GOST]
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84 Flange Connections of Wellhead Equipment - Stud - Modification 2 [GOST]
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85 Flange Connections of Wellhead Equipment - Stud - Modification 1 [GOST]
GOST 28919 - 1991 		Flange Connections of Wellhead Equipment - Stud - Modification 1