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Studs Rolled Thread
STUDS - ROLLED THREAD
THREAD - UNC-2A Stressproof Steel
Tensile Strength: 125,000 psi
Yield: 100,000 psi
Appearance: Black Oxide coated
Hardness: Rockwell 20C
Part #
Thread
Size
D
Overall
Length
L ( in)
Thread
Lengths
L1, L2
Flats
ST2
1/4-20
1 1/2
1/2
No
ST4
1/4-20
2
3/4
No
ST6
1/4-20
2 1/2
1
No
ST8
1/4-20
3
1
No
ST10
1/4-20
3/12
1
No
ST12
1/4-20
4
1
No
ST14
1/4-20
41/2
1
No
ST16
1/4-20
5
1
No
ST18
1/4-20
5 1/2
1
No
ST20
1/4-20
6
1
No
ST22
1/4-20
6 1/2
1
No
ST24
1/4-20
7
1
No
ST26
1/4-20
7 1/2
1
No
ST28
1/4-20
8
1
No
ST30
5/16-18
1 1/2
1/2
No
ST32
5/16-18
2
3/4
No
ST34
5/16-18
2 1/2
1
No
ST36
5/16-18
3
1 1/8
No
ST38
5/16-18
3 1/2
1 1/8
No
ST40
5/16-18
4
1 1/8
No
ST42
5/16-18
4 1/2
1 1/8
No
ST44
5/16-18
5
1 1/8
No
ST46
5/16-18
5/12
1 1/8
No
ST48
5/16-18
6
1 1/8
No
ST50
5/16-18
6 1/2
1 1/8
No
ST52
5/16-18
7
1 1/8
No
ST54
5/16-18
7 1/2
1 1/8
No
ST56
5/16-18
8
1 1/8
No
ST58
3/8-16
1 1/2
1/2
No
ST60
3/8-16
2
3/4
No
ST62
3/8-16
2 1/2
1
No
ST64
3/8-16
3
1 1/8
Yes
ST66
3/8-16
3 1/2
1 1/4
Yes
ST68
3/8-16
4
1 1/4
Yes
ST70
3/8-16
4 1/2
1 1/4
Yes
ST72
3/8-16
5
1 1/4
Yes
ST74
3/8-16
5 1/2
1 1/4
Yes
ST76
3/8-16
6
1 1/4
Yes
ST78
3/8-16
6 1/2
1 1/4
Yes
ST80
3/8-16
7
1 1/4
Yes
ST82
3/8-16
7 1/2
1 1/4
Yes
ST84
3/8-16
8
1 1/4
Yes
ST86
7/16-14
1 1/2
1/2
No
ST88
7/16-14
2
3/4
No
ST90
7/16-14
2 1/2
1
No
ST92
7/16-14
3
1
Yes
ST94
7/16-14
3 1/2
1 1/4
Yes
ST96
7/16-14
4
1 3/8
Yes
ST98
7/16-14
4 1/2
1 3/8
Yes
ST100
7/16-14
5
1 3/8
Yes
ST102
7/16-14
5 1/2
1 3/8
Yes
ST104
7/16-14
6
1 3/8
Yes
ST106
7/16-14
6 1/2
1 3/8
Yes
ST108
7/16-14
7 1/2
1 3/8
Yes
ST110
1/2-13
1 1/2
1/2
No
ST112
1/2-13
2
3/4
No
ST114
1/2-13
2 1/2
1
No
ST116
1/2-13
3
1 1/8
Yes
ST118
1/2-13
3 1/2
1 3/8
Yes
ST120
1/2-13
4
1 1/2
Yes
ST122
1/2-13
4 1/2
1 1/2
Yes
ST124
1/2-13
5
1 1/2
Yes
ST126
1/2-13
5 1/2
1 1/2
Yes
ST128
1/2-13
6
1 1/2
Yes
ST130
1/2-13
6 1/2
1 1/2
Yes
ST132
1/2-13
7
1 1/2
Yes
ST134
1/2-13
7 1/2
1 1/2
Yes
ST136
1/2-13
8
1 1/2
Yes
ST138
1/2-13
9
1 1/2
Yes
ST140
1/2-13
10
1 1/2
Yes
ST142
1/2-13
12
1 1/2
Yes
ST144
1/2-13
14
1 1/2
Yes
ST146
1/2-13
16
1 1/2
Yes
ST148
5/8-11
1 1/2
1/2
No
ST150
5/8-11
2
3/4
No
ST152
5/8-11
2 1/2
1
No
ST154
5/8-11
3
1 1/8
Yes
ST156
5/8-11
3 1/2
1 3/8
Yes
ST158
5/8-11
4
1 5/8
Yes
ST160
5/8-11
4 1/2
1 3/4
Yes
ST162
5/8-11
5
1 3/4
Yes
ST164
5/8-11
5 1/2
1 3/4
Yes
Part #
Thread
Size
D
Overall
Length
L ( in)
Thread
Lengths
L1, L2
Flats
ST166
5/8-11
6
1 3/4
Yes
ST168
5/8-11
6 1/2
1 3/4
Yes
ST170
5/8-11
7
1 3/4
Yes
ST172
5/8-11
8
1 3/4
Yes
ST174
5/8-11
9
1 3/4
Yes
ST176
5/8-11
10
1 3/4
Yes
ST178
5/8-11
12
1 3/4
Yes
ST180
5/8-11
14
1 3/4
Yes
ST182
5/8-11
16
1 3/4
Yes
ST184
5/8-11
18
1 3/4
Yes
ST186
5/8-11
20
1 3/4
Yes
ST188
5/8-11
22
1 3/4
Yes
ST190
5/8-11
24
1 3/4
Yes
ST192
3/4-10
3
1
Yes
ST194
3/4-10
3 1/2
1 1/4
Yes
ST196
3/4-10
4
1 5/8
Yes
ST198
3/4-10
4 1/2
1 7/8
Yes
ST200
3/4-10
5
2
Yes
ST202
3/4-10
5 1/2
2
Yes
ST204
3/4-10
6
2
Yes
ST206
3/4-10
61/2
2
Yes
ST208
3/4-10
7
2
Yes
ST210
3/4-10
7 1/2
2
Yes
ST212
3/4-10
8
2
Yes
ST214
3/4-10
9
2
Yes
ST216
3/4-10
10
2
Yes
ST218
3/4-10
12
2
Yes
ST220
3/4-10
14
2
Yes
ST222
3/4-10
16
2
Yes
ST224
3/4-10
18
2
Yes
ST226
3/4-10
20
2
Yes
ST228
3/4-10
22
2
Yes
ST230
3/4-10
24
9
Yes
ST232
7/8-9
3
1
Yes
ST234
7/8-9
3 1/2
1 1/4
Yes
ST236
7/8-9
4
1 1/2
Yes
ST238
7/8-9
4 1/2
1 3/4
Yes
ST240
7/8-9
5
2
Yes
ST242
7/8-9
5 1/2
2 1/4
Yes
ST244
7/8-9
6
2 1/4
Yes
ST246
7/8-9
6 1/2
2 1/4
Yes
ST248
7/8-9
7
2 1/4
Yes
ST250
7/8-9
7 1/2
2 1/4
Yes
ST252
7/8-9
8
2 1/4
Yes
ST254
7/8-9
9
2 1/4
Yes
ST256
7/8-9
10
2 1/4
Yes
ST258
7/8-9
12
2 1/4
Yes
ST260
7/8-9
14
2 1/4
Yes
ST262
7/8-9
16
2 1/4
Yes
ST264
7/8-9
18
2 1/4
Yes
ST266
7/8-9
20
2 1/4
Yes
ST268
7/8-9
22
2 1/4
Yes
ST270
7/8-9
24
2 1/4
Yes
ST272
1-8
3
1
Yes
ST274
1-8
3 1/2
1 1/4
Yes
ST276
1-8
4
1 1/2
Yes
ST278
1-8
4 1/2
1 3/4
Yes
ST280
1-8
5
2
Yes
ST282
1-8
5 1/2
2 1/4
Yes
ST284
1-8
6
2 1/2
Yes
ST286
1-8
6 1/2
2 1/2
Yes
ST288
1-8
71/2
2 1/2
Yes
ST290
1-8
8
2 1/2
Yes
ST292
1-8
9
2 1/2
Yes
ST294
1-8
10
2 1/2
Yes
ST296
1-8
12
2 1/2
Yes
ST298
1-8
14
2 1/2
Yes
ST300
1-8
16
2 1/2
Yes
ST302
1-8
18
2 1/2
Yes
ST304
1-8
20
2 1/2
Yes
ST306
1-8
22
2 1/2
Yes
ST308
1-8
24
2 1/2
Yes
Bronco Tool Company
1550 Opelika Road, Suite 6-114
Auburn, AL 36830
334 363 2280
jay@broncotool.com
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