GSG 2025 REV A Catalog
HELICAL COIL (STI) THREAD PLUG GAGES STEEL HELICAL CO
GSG
GSG
Helical Coil (STI) Plug Gages are used to gage threaded holes prior to insertion of screw thread inserts. Screw thread inserts are used to repair a damaged thread or to provide a stronger threaded assembly. All Helical Coil Plug Gages are manufactured of hardened tool steel to class X tolerance. For class W contact factory. All stocked gages are marked in fraction. There is a $10.00 charge per member to change the marking to decimal. les prior to insertion of scr All Helical Coil P contact
Inch
Nominal
Go
NoGo
Go
NoGo 2B NoGo 3B Member
Handle
Handle Double End Price Go/NoGo/Hdle
Size
Length
Length
Pitch
Pitch
Pitch
List
#
"L"
"L"
Diameter
Diameter
Diameter
Price
List Price
2-56 (.086) UNC 3-48 (.099) UNC 3-56 (.099) UNF 4-40 (.112) UNC 4-48 (.112) UNF 5-40 (.125) UNC 6-32 (.138) UNC 6-40 (.138) UNF 8-32 (.164) UNC 8-36 (.164) UNF 10-24 (.190) UNC 10-32 (.190) UNF 12-24 (.216) UNC
5/16 5/16 5/16 5/16 5/16
7/32 7/32 7/32 7/32 7/32 9/32 9/32 9/32 9/32 9/32 5/16 5/16 5/16 5/16 5/16
0.0976 0.1126 0.1106 0.1283 0.1256 0.1413 0.1583 0.1543 0.1843 0.1821 0.2170 0.2103 0.2430 0.2825 0.2732 0.3486 0.3395 0.4156 0.4020 0.4839 0.4700 0.5499 0.5325 0.6167 0.5986 0.6841 0.6611 0.8149 0.7906
0.0996 0.1148 0.1126 0.1308 0.1279 0.1438 0.1611 0.1569 0.1872 0.1849 0.2203 0.2133 0.2464 0.2864 0.2765 0.3529 0.3433 0.4203 0.4059 0.4890 0.4744 0.5554 0.5371 0.6225 0.6035 0.6903 0.6661 0.8216 0.7961
0.0989 0.1140 0.1119 0.1299 0.1271 0.1430 0.1601 0.1560 0.1862 0.1840 0.2192 0.2123 0.2453 0.2851 0.2754 0.3515 0.3421 0.4189 0.4047 0.4875 0.4731 0.5537 0.5357 0.6208 0.6020 0.6885 0.6646 0.8196 0.7945
$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
76.00 73.00 73.00 68.00 68.00 68.00 68.00 68.00 65.00 65.00 65.00 65.00 65.00 63.00 63.00 63.00 63.00 65.00 65.00 68.00 68.00 73.00 73.00 87.00 87.00 87.00 87.00 91.00 91.00
00 00 00 00 00
$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
13.00 13.00 13.00 13.00 13.00 13.00 13.00 13.00 13.00 13.00 13.00 13.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 13.00 12.00
$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $
165.00 159.00 159.00 149.00 149.00 149.00 149.00 149.00 143.00 143.00 143.00 143.00 142.00 138.00 138.00 138.00 138.00 142.00 142.00 148.00 148.00 158.00 158.00 186.00 186.00 186.00 186.00 195.00 194.00
13/32 13/32 13/32 13/32 13/32
0 0 0 0 0 0 0 1 1 1 2 2 2 2 3 3 3 3 3 3 3 3 4 3
1/2 1/2 1/2 1/2 1/2 3/4 3/4 3/4 3/4 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8
1/4-20 UNC 1/4-28 UNF 5/16-18 UNC 5/16-24 UNF 3/8-16 UNC 3/8-24 UNF 7/16-14 UNC 7/16-20 UNF 1/2-13 UNC 1/2-20 UNF 9/16-12 UNC 9/16-18 UNF 5/8-11 UNC 5/8-18 UNF 3/4-10 UNC 3/4-16 UNF
3/8 3/8 3/8 3/8 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 5/8 5/8
1 1
19
Effective March 2025 - © Glastonbury Southern Gage
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