BS Cycle Thread Gauges
BS Cycle threads are used for Spokes, Nipples, Bolts, and Nuts in Bicycle Industry.
Specification:
Basic Dimensions: BS 811: 1950 & Gauging Practice: BS 919 Part II: 2007.
Manufacturing Range:
Sizes covered are SWG series for spokes & Nipples – SWG 8,9,10 & 11, Diameter 1/8 to 31/32 with various TPI as specified in specification.
|
DIAMETER/ SIZE |
TPI |
Thread Plug Gauges |
Thread Ring Gauges |
Check Plug Gauges to check NEW Rings. |
Wear Check Plug Gauges to check/ calibrate used Rings. |
|
For Spokes and Nipples |
|||||
|
SWG 11 |
44 |
Tolerance Class |
Tolerance Class |
Tolerance Class |
Tolerance Class |
|
SWG 10,SWG9 |
40 |
Medium (M) |
Medium (M) |
Medium (M) |
Medium (M) |
|
SWG 8 |
32 |
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|
For Bolts and Nuts |
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|
1/8 |
40 |
Tolerance Class |
Tolerance Class |
Tolerance Class |
Tolerance Class |
|
Close (C) |
Close (C) |
Close(C) |
Close (C ) |
||
|
5/32, 3/16 |
32 |
Medium (M) |
Medium (M) |
Medium (M) |
Medium (M) |
|
7/32 ,1/4, 9/32, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8,11/16, 3/4, |
26 |
Free (F) |
Free (F) |
Free (F) |
Free (F) |
|
For Special Thread Applications |
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|
7/8, 1, 1.290, 1.3701.9/16, 1.5/8 |
24 |
Tolerance Class |
Tolerance Class |
Tolerance Class |
Tolerance Class |
|
1.1/8, 1.45,17 / 64 |
26 |
Medium (M) |
Medium (M) |
Medium (M) |
Medium (M) |
|
31/32 |
30 |